The amount of energy a person uses at rest is known as the

Answers

Answer 1
Basal metabolic rate (BMR)

Related Questions

What’s the difference between fiber optic cable, twisted pair cable and coaxial cable?

Answers

Coaxial cables offer a potential data transfer rate of 80 times quicker than twisted pair connections, which have a maximum of 10 Mbps. High-speed data transport occurs using optical fiber lines. About 69% of the speed of light is used to describe the transfer speed.

What is a Cable?

An assemblage of one or more wires running parallel to one another or bundled together that is used to transport electric current is known as an electrical cable.

A cable assembly, which is not always appropriate for connecting two devices but can be a partial product, can be made up of one or more electrical cables and the necessary connectors. A cable tree or cable harness are other examples of cable assemblies that can be utilized to link numerous terminals.

One or more optical fibers are used to carry data using fiber optic cables, also known as optical fiber cables, a type of Ethernet cable. As light pulses pass through small glass tubes, fiber optic cable transfers data. Twisted pair cable's transmission capacity is 26,000 times lower than optical fiber cable's transmission capacity.

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Final answer:

Fiber optic cables, twisted pair cables, and coaxial cables are different types of cables used in telecommunications. Fiber optic cables use light signals for data transmission, while twisted pair and coaxial cables use electrical signals. Each cable has its own advantages and is used for different purposes.

Explanation:

Fiber optic cables, twisted pair cables, and coaxial cables are all types of cables used for transmitting signals in telecommunications. Here are the differences:

Fiber optic cable: Uses thin strands of glass or plastic to transmit data using light signals. It offers high bandwidth, low loss, and reduced crosstalk. It is commonly used for long-distance communication due to its superior performance.Twisted pair cable: Consists of twisted pairs of copper wires. It is commonly used for Ethernet networks and telephone lines. It is cost-effective and reliable for shorter distances.Coaxial cable: Has a central conductor surrounded by an insulating layer, a shield, and an outer layer. It is used for cable TV, Internet, and high-frequency transmissions. It offers high bandwidth, but its performance may degrade over long distances.

Overall, the choice of cable depends on the specific application and requirements.

What is the weight on earth of a girl with a mass of 17 kg?

Answers

The gravity on earth is about 9.8 thus you times the mass by the gravity on earth:
17*9.8 = 166.6

Hope this helps! :)

An automobile with a mass of 1232 kg accelerates at a rate of 2 m/s² in the forward direction. What is the net force acting on the automobile? N

Answers

Based on Newton's second law:
Force = mass x acceleration

For this problem: we have the mass = 1232 kg and the acceleration = 2 m/s^2
So, just substitute with the givens in the above equation to calculate the force as follows:
Force = 1232 x 2 = 2464 Newtons

The law of motion that states that an object will maintain its straight-line motion until acted upon by an unbalanced force is __________ A. F = m*a. B. Newton's second law. C. Newton's first law. D. Newton's third law

Answers

C: Newton's first law
Newton's First Law of Motion

A car is traveling at a constant speed of 23 m/s on a highway. at the instant this car passes an entrance ramp, a second car enters the highway from the ramp. the second car starts from rest and has a constant acceleration. what acceleration must it maintain, so that the two cars meet for the first time at the next exit, which is 3.0 km away?

Answers

23 m/s (dividing by 1000 m/km) = 0.023 km/sDistance (3 km) divided by Speed (0.023 km/s) gives us Time = 130.43478... secSo it takes the first car mentioned about 130 seconds to move from the entrance ramp to the next exit.
We would like the second car to cover the same distance in the same time, but not be traveling at a steady pace, instead start at 0 and constantly increase speed. Even though the speed will be changing each instant, the AVERAGE speed of the second car will be the same as the speed of the first car over those 3 km in order for them to meet again. So the average speed of the second car will be 23 m/s.
Acceleration is a rate of change of speed, (or average speed divided by time). So, to find the acceleration of the second car, we divide 23 m/s by the time 130.43... s. This yields 0.17633333... m/s^2 as the acceleration needed."

Final answer:

To catch up with the first car at the exit 3.0 km away, the second car, starting from rest, must maintain an acceleration of approximately 0.3524 m/s².

Explanation:

To solve for the acceleration that the second car must maintain to meet the first car at the next exit 3.0 km away, we can use the equations of motion for uniformly accelerated motion.

Since the first car is traveling at a constant speed of 23 m/s and the distance to the next exit is 3.0 km (which is 3000 meters), we can determine the time it will take for the first car to reach the exit. The time (t) can be found using the equation:

Distance = Speed × Time

So, for the first car, Time = Distance/Speed = 3000 m / 23 m/s = 130.43 seconds.

The second car starts from rest (initial velocity = 0) and must cover the same 3000 meters in the same time, but under constant acceleration. We can use the equation for displacement under constant acceleration:

Displacement = Initial Velocity × Time + (1/2) × Acceleration × Time²

Since the initial velocity (u) is 0 m/s for the second car, the equation simplifies to:

3000 m = (1/2) × Acceleration (a) × (130.43 s)²

Now we can solve for the acceleration (a):

Acceleration = (2 × 3000 m) / (130.43 s)²

Acceleration = 6000 m / 17022.1849 s²

Acceleration = 0.3524 m/s²

Therefore, the second car must maintain an acceleration of approximately 0.3524 m/s² to meet the first car at the exit.

What determines the direction that molecules move during diffusion?

Answers

the amount of energy that the molecule has 
Concentration Gradient. Passive diffusion = HIGH concentration to LOW concentration & Active diffusion = LOW to HIGH.

The physics explanation is "Electric Charge".

When you double your speed, it takes about _____ times as much distance to stop?

Answers

4 times as much distance to stop

The push of air on earth is called

Answers

The answer is Air Pressure
The answer is air pressure
Air has a certain amount of mass from its molecules and because of earth's gravity forces, the air now has a certain amount of weight (weight = mass x gravity) Air pressure is created because of the weight of the air pushing down on the atmosphere and the surface below it.

Why does a spoon appear to be bent when it’s in a glass of water?

Answers

When light goes from one medium to another, it changes angle. This is why it will look bent.

You are building a canoe, and you want to make it out of metal. which property would be most important to consider in choosing which metal to use?

Answers

the density of the metal is important because if its more dense than water it will sink but if its lighter than water it will float

If 500 thousand btus of energy are available to raise the temperature of a water boiler from 20°f to 100°f, how many gallons of water can be added to the boiler?

Answers

Final answer:

If 500 thousand BTUs of energy are available to raise the temperature of a water boiler from 20°F to 100°F, then the amount of water that can be added to the boiler is 750 gallons.

Explanation:

The subject of this question is physics, specifically the application of thermodynamics in heating water. Given that 1 BTU is the amount of energy needed to heat one pound of water by one degree Fahrenheit, first we need to convert the weight of water from gallons to pounds (since 1 gallon of water weighs about 8.34 pounds). Then, if we are to increase the temperature of the water from 20°F to 100°F, that's a 80°F difference. Hence, the energy required to heat one pound of water from 20°F to 100°F is 80 BTU.

So, if there are 500 thousand BTUs available, the amount of water (in pounds) that can be heated will be 500,000 BTUs divided by 80 BTU per pound, equating to 6250 pounds. Converting this weight back to gallons (since 1 pound of water is approximately 0.12 gallons), the amount of water that can be added to the boiler is 750 gallons.

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Using 500,000 BTUs of energy, you can raise the temperature of approximately 781.25 gallons of water from 20°F to 100°F, given the specific heat capacity of water and its density. This calculation is based on the energy required to heat each pound of water and converting that to gallons.

To determine how many gallons of water can be heated from 20°F to 100°F using 500,000 BTUs of energy, we need to use the specific heat capacity of water. The specific heat capacity of water is 1 BTU per pound per degree Fahrenheit.

First, calculate the total temperature change:

ΔT = 100°F - 20°F = 80°F

Next, we use the formula:

Energy = mass * specific heat capacity * ΔT

Rearrange to solve for mass (in pounds):

mass = Energy / (specific heat capacity * ΔT)

Insert the known values:

mass = 500,000 BTU / (1 BTU/lb/°F * 80°F) = 6,250 pounds

Since the density of water is approximately 8 pounds per gallon, convert the mass of water to gallons:

gallons = mass / density = 6,250 pounds / 8 pounds/gallon = 781.25 gallons

So, you can add approximately 781.25 gallons of water to the boiler.

The state of matter in which particles move most rapidly is

Answers

if thw answers you have are solid liquid and gas then your answer should be gas because there is more space to move around.

Which would hold more water- a teaspoon (tsp) or a milliliter?

Answers

A tsp

1 milliliter equals 0.202. US teaspoons. boi did that help

Answer:

A teaspoon

Explanation:

As we know that the capacity of hold something by a standard teaspoon is related with milliliters as,

1 teaspoon is equivalent to 4.92892 milliliters

From this it can be see that the 1 teaspoon is equivalent to approximately 5 milliliters.

Therefore, the water hold by 1 teaspoon is more than the water hold by a milliliter.

*PHYSICS HELP*

Without using your spring scale, estimate the order of magnitude of the mass of your calculator in grams from what you judge to be its size, using the fact that the density of water is 1 g/cm3. Assume that the density of water is about the same as the density of your calculator.
1 g 
102 g
104 g
106 g

Answers

We consider that my calculator has the following dimensions (approx) : Length = 14 cm Width = 7 cm Heigth= 2 cm Then the volum of the calculator will be V=Length x Width x Height = 196 cm3 If we assume that my calculator has the same density of water, that is 1 g/cm3 that means my calculator mass is: M = 196 cm3 * 1 g/cm3 = 196 grams

Is work done when you lift a brick?
A.No, the force applied is parallel to the direction of motion.
B.Yes, the force applied is parallel to the direction of motion.
C.No, the force applied is perpendicular to the direction of motion.
D.Yes, the force applied is perpendicular to the direction of motion.

Answers

it is B.

Yes, the force applied is parallel to the direction of motion

Answer:

The answer is: "Yes, the force applied is parallel to the direction of motion" Hope this helps :)

Explanation:

Carl measures the temperature of the water at different depths of the lake to see if there is a relationship.

Independent Variable:

Dependent Variable:

Answers

Independent variable - Water depth

The independent variable is something that is purposely changed in order to see the effects of change on the dependent variable. So since Carl wants to measure the temperature of water at different depths we will purposely change the depth of the water in order to observe how this would affect the temperature. 

Dependent variable - Temperature of the water 

The dependent variable is something that is dependent on the independent variable and is assumed to change as the independent variable changes. So we can determine that the temperature of the water is the independent variable as Carl expects it to change with the depth of the water. Another reason we can determine this is the dependent variable is because Carl can change the depth of the water measured but not the temperature of the water depths. 
Final answer:

In Carl's experiment, the independent variable is the depth of the lake, which is being manipulated. The dependent variable is the temperature of the water, which may change based on the depth of measurement.

Explanation:

In this lake temperature measurement experiment, the independent variable is the depth of the lake. This is because Carl is manipulating or changing the depth where he is taking water temperature measurements. The dependent variable, on the other hand, is the temperature of the water. The temperature is dependent because its value can possibly change based on the depth of the lake where the temperature measurement is taken.

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A child dangles a 1.50-kilogram stuffed toy 0.500 meters from the ground. What is the potential energy of the toy?
Answers are:
0.188 J
0.750 J
7.35 J
14.7 J

Answers

since we know that
Gravitational potential energy = mass × height ×gravity

then

GPE = 1.5 kg x 0.500 m x 9.8m/s^2

therefore

GPE = 7.35 J

Answer: 7.35 Joules

Explanation:

i got it right in my exam

Temperature cannot be considered a field since there are occasions where it is not possible to measure it with a thermometer. True or False?

Answers

The answer would be false

The packets of energy that light travels in are called

Answers

A packets of light energy is called a photons.

Write a simple rule that will tell a person how many water molecule will be lost while putting monosaccharides together to form polysaccharide ?

Answers

Final answer:

One water molecule is lost for every glycosidic bond formed in the polysaccharide chain, meaning for N monosaccharides joined, N-1 water molecules are lost.

Explanation:

Rule for Water Molecules Lost in Polysaccharide Formation;

During the formation of polysaccharides from monosaccharides, a dehydration reaction occurs. This means for every glycosidic bond formed, one water molecule is released. Therefore, a simple rule to determine the number of water molecules lost is as follows: for N monosaccharides joined to form a polysaccharide, the number of water molecules lost would be N-1. If two monosaccharides join to form a disaccharide, one water molecule is lost; if three join to form a trisaccharide, two are lost, and so on.

To illustrate, if you have 10 monosaccharides combining, you would lose 9 water molecules in the process, as 10-1=9. This reaction can be reversed through hydrolysis, where adding water can break the glycosidic bonds, converting the polysaccharide back into individual monosaccharides.

There is a simple pattern for determining if a binary number is odd. what is it and why does this pattern occur

Answers

The answer to this question would be the least number (right most number).

If you add an even number with even number, the result should be even. But if there is just one odd number added, it will be odd.
In binary, all the number is multiplied by [tex] 2^{x} [/tex]. It is pretty clear that all the number should be even beside the first/lowest multiplier [tex] 2^{0} [/tex]  which has potential to be 1. 

There is a simple pattern for determining if a binary number is odd. This is when the number ends in 1. This pattern occured because they are defined by an odd word.

Further explanation

The binary number is a number that expressed in the base-2 numeral system or binary numeral system, that uses only two symbols, typically "0" and "1".

If the number ends in 1, it will be odd, whereas if the number ends in 0, it's even. Because the first digit can only be 0 or 1, the rest of the digits are multiplied by two.  To convert a binary number to base 2k, split it into groups of k digits by adding leading 0s if necessary, then convert each group to base 2k.

Example:

1001 represents an odd number (9)1000 represents an even number (8)1101 represents an odd number (13)10010 represents an even number (18).

This pattern odd occured because they are defined by an odd word.They are numbers, that are by definition is too many things that they become odd, and also because they look odd again even when split into two

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Answer details

Grade:  9

Subject:  physics

Chapter:  Computer Science

Keywords: binary number, pattern, odd binary number, even binary number, Computer Science

Hi! Can you help me? :) A satellite's speed is 10,000 m/s. After 1 min, it is 5,000 m/s. What is the satellite's acceleration? Thanks!!

Answers

a = ΔV/Δt = (5000-10000)/60 = -500/6 = -83.(3) m/sec^2

Answer:

Acceleration, [tex]a=-83.33\ m/s^2[/tex]

Explanation:

It is given that,

Initial speed of the satellite, u = 10000 m/s

Final speed of the satellite, v = 5000 m/s

Time taken, t = 1 min = 60 seconds

Acceleration of the satellite is given by :

[tex]a=\dfrac{v-u}{t}[/tex]

[tex]a=\dfrac{5000-10000}{60}[/tex]

[tex]a=-83.33\ m/s^2[/tex]

So, the acceleration of the pumpkin is [tex]-83.33\ m/s^2[/tex]. Hence, this is the required solution.

How is acceleration calculated

Answers

A= net force divided by mass

Answer:

Mathematically, the acceleration of a body at any time is the second derivative of the position:

[tex]a=\frac{d^2x}{dt^2}[/tex]

In addition, it can be obtained by deriving the speed of the body:

[tex]a=\frac{dv}{dt}[/tex]

Explanation:

In classical mechanics acceleration is defined as the variation of speed with respect to time:

[tex]a=\frac{dv}{dt}[/tex]

In Newtonian mechanics, for a body with constant mass, the acceleration of the body measured by an inertial observer is proportional to the force acting on it:

[tex]F=ma\\\\a=\frac{F}{m}[/tex]

An airplane flies 12 m/s due north with a velocity of 35.11 m/s. how far east does it fly?

Answers

The plane's velocity of 35.11 m/s is actually due in a north-eastward direction. The 12 m/s velocity is the vertical component of the plane's velocity, hence it is pointing northwards. We will use the formula:

Vy = Vsin∅

To determine the angle ∅ at which the plane is flying. This is:

12 = 35.11 * sin∅
∅ = 20.0 degrees

The eastward velocity is:

Vx = Vcos∅
Vx = 35.11 * cos(20)
Vx = 33.0 m/s

The plane's eastward velocity is 33.0 m/s
The question says: The airplane flew due north for the given duration  (i interpret m/s to be milliseconds) and at the given velocity.

 The statement mentions no change in direction or angle, therefore the airplane does not fly east (or the airplane travels 0.0m east).

A car is traveling with constant velocity. this means that _______.

Answers

It is traveling in a straight line and its speed is not changing

A car is traveling with constant velocity. this means that its position changes with time at constant rate at same direction.

What is velocity?

The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.

Velocity informs us about the rate of change of your position, or how quickly your position changes per unit time. Velocity is described in physics as displacement divided by time, where displacement is the difference between your final and initial positions. Furthermore, an object is considered to be moving with constant velocity if it travels the same distance every second. This means that both the amount and direction of the velocity (or speed) stay constant.

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Scientists are concerned about the release of methane from the arctic because _______. a. as a greenhouse gas methane is 20 times more potent than carbon dioxide b. the mass of the arctic’s methane is comparable to that of the Earth’s coal beds c. global warming appears to be accelerating its release d. all of the above

Answers

D: All of the above

I know methane is deadly and global warming is accelerating.

Answer: d. all of the above

Methane is a powerful greenhouse gas that contributes to the phenomena of global warming. One mole of methane is 10 times more powerful than one mole of CO₂. It is a dominant greenhouse gas. In Artic region the methane is released from the sea bed and the permafrost soil.  The methane is released as natural gas reserve from these sources as a outcome of the process of methanogeneisis. It involves the partial or uncomplete degradation of dead remains of animals and plants and rapid heating and thawing conditions.

The gas releases in the atmosphere because of all the four options.


What is the energy (in joules) of an ultraviolet photon with wavelength 110 nm?

Answers

For light or ultraviolet, the formula for energy can be calculated using Planck’s equation. That is:

E =  h c / ʎ

where,

h is the Planck’s constant = 6.626 * 10^-34 m^2 kg / s

c is the speed of light = 3 * 10^8 m/s

ʎ is the wavelength of light = 110 nm = 110 x 10^-9 m

 

So calculating for energy E:

E = (6.626 * 10^-34 m^2 kg / s) * (3 * 10^8 m/s) / (110 x 10^-9 m)

E = 1.807 x 10^-18 J

PLZ HELP NEED IT NOW which of the following descriptions could apply to an accelerating car. I. A car rounding a curve. II. A car speeding up to get on a freeway III. A car slowing to get off freeway IV a car maintaining a constant speed. A. II B. II and III c. I II III d. All of the above. Explain why

Answers

Either C or D because you eccelerate when doing all except slowing to get off of freeway. C final

Answer:

C is the answer

The Sears Tower in Chicago is 443 m tall. Joe wants to set the world's stair climbing record and runs all the way to the roof of the tower. If Joe's average speed is 0.60 m/s, how long will it take Joe to climb from street level to the roof of the Sears Tower?

*This is about average velocity and displacement.

Answers

738.3 seconds (12.3 minutes)

If we assume that Joe's speed is 0.6 m/s in the vertical direction, then the total displacement he must cover is 443 meters in the vertical direction. Now, the formula for average speed is:

average speed = total distance / total time
total time = total distance / average speed
total time = 443/0.6
total time = 738.3 seconds
Final answer:

Joe will take approximately 738.33 seconds to climb from street level to the roof of the Sears Tower.

Explanation:

To calculate the time it will take Joe to climb from street level to the roof of the Sears Tower, we can use the formula:

Time = Distance/Speed



Joe is climbing a distance of 443 m at an average speed of 0.60 m/s, so we can substitute these values into the formula:



Time = 443 m / 0.60 m/s = 738.33 s



Therefore, it will take Joe approximately 738.33 seconds to climb from street level to the roof of the Sears Tower.

What two instruments in a car can be used to measure the car's average speed?

Answers

First, let's remember that average speed = distance traveled / time traveled

The instruments required in order to measure the speed of a car are the tape measure or the metre rule for measuring the speed, and the stop-clock for measuring the time taken.

Answer:

Two essential measurements to calculating average speed are distance and time.

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