Answer:
d is the correct answer.
Explanation:
D) Liquid to solid and liquid to gas.
What is the mass of an object if a net force of 8.0 N causes it to accelerate at 1.1 m/s2?
True or false:
If an object has twice the size of another object, it has half the weight
If an object has twice the size of another object, it has half the weight. This is false statement. Weight matters on its mass which varies with both volume and density.
What is density?The density of a substance indicates how dense it is in a given area. Mass per unit volume is the definition of a material's density. In essence, density is a measurement of how closely stuff is packed. It is a particular physical characteristic of a specific thing. The Greek scientist Archimedes made the discovery of the density principle. If you are familiar with the formula and the relevant units, calculating density is simple. The letter D can be used to signify density instead of the symbol.
The weight of an object is directly proportional to mass of the object. Mass of any object is product of its volume and density. So, If an object has twice the size of another object, it has half the weight - this is not a true statement.
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Friction is generated when _____ interact with each other on sliding surfaces..... solids ,molecules, forces ,fluids
Answer:
B) Molecules
Explanation:
the net force on the propeller of a 3.2 kg model is 7.0 N forward. what is the acceleration of the plane
Answer:
Acceleration of the plane, [tex]a=2.18\ m/s^2[/tex]
Explanation:
It is given that,
Mass of the model, m = 3.2 kg
The net force acting on the propeller, F = 7 N
We need to find the acceleration of the plane. Let it is given by a. Using second law of motion, we can find the value of a. The mathematical relationship between the mass, force and the acceleration is given by :
[tex]F=m\times a[/tex]
[tex]a=\dfrac{F}{m}[/tex]
[tex]a=\dfrac{7\ N}{3.2\ kg}[/tex]
[tex]a=2.18\ m/s^2[/tex]
So, the acceleration of the plane is [tex]2.18\ m/s^2[/tex]. Hence, this is the required solution.
Choose two forces and compare and contrast these forces. These must be different forces than used in the prior question. Provide two ways that they are similar and two ways that they are different. You may make a list, write it out, or make a chart.
summary of newtons 2nd law 5 sentences
Instead of clear-cutting land and moving on, a local lumber business decides to start farming trees: cutting some of the trees and planting the fields they have just cut with saplings.
Compared to the old method of clear-cutting, the impact this new strategy will have on the environment is best described as what?
A) Positive, since the lumber company will immediately make more money.
B) Negative, since it is destroying much of the environment.
C) Positive, since it is a sustainable plan to use a renewable resource.
D) Negative, since it is a sustainable plan to use a renewable resource.
The correct answer is - C) Positive, since it is a sustainable plan to use a renewable resource.
The local lumber business, with this move, is doing good both, to the business itself, and to the environment. Since the amount of trees that will be cut, is immediately replaced with saplings that are taken care of, the lumber business is creating a sustainable business for the future, and also it is creating a renewable resource. The environment will also benefit from this, because the lumber business will only use certain amount of wooded area because it will have new wood constantly on the same area it is using, thus they will not have the need to spread out on a larger area and destroy the environment.
The velocity of an object can be represented by a (n)__________ .
The length of the arrow indicates the ____________ . The arrow points
in the direction of the object’s _________.
The velocity of an object can be represented by an arrow. The length of the arrow indicates the speed of the object . The arrow points in the direction of the object’s movement.
What is velocity ?Velocity is a physical quantity that measures the distance travelled per unit time. Velocity is a vector quantity. Thus it is characterized by a magnitude and direction.
The magnitude of the velocity of an object is called speed. Thus velocity is the rate of speed. The change in speed or direction or in both causes a change in velocity.
The velocity of an object generally represented by an arrow in physics. The length of the arrow indicates the speed of the object . The arrow points in the direction of the object’s movement.
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What is the acceleration of a vehicle that goes from 35m/s to a stop in 35 s?
Making model involves creating representations of complex objects or processes to help people study and understand things that be observed directly
True
False
The mass of the container holding this table salt is 3G what is the mass of this table salt
How do you get 6? Can you please explain the steps?
A student is trying to calculate the density of an ice cream cone. She already knows the mass, but she needs to determine the volume as well. Which of the following formulas can be used to calculate the volume of the cone?
Answer:
[tex]V = \frac{1}{3}\pi R^2 H[/tex]
Explanation:
Volume of any type of cone is given as
[tex]V = \frac{1}{3}[/tex] (base area) (height)
Now we know that base of the triangular cone is always like a circle of radius R
Now the area of the base is given as
[tex]A = \pi R^2[/tex]
Now in order to find volume let say the height of the cone is H
so volume of the cone is given as
[tex]V = \frac{1}{3}\pi R^2 H[/tex]
What is the MOST LIKELY effect of deforestation that results from urbanization of an area?
A) Trees will be replaced quickly but by different tree species.
B) There will be less land available for agriculture.
C) There will be an increase in biodiversity.
D) Soil erosion will increase.
Clear-cut logging is a method of cutting down all the trees in a particular area. This type of logging is MOST LIKELY going to effect which earth process?
A) erosion
B) climate
C) weathering
D) mountain building
A. Erosion is the answer
Answer: 1.D) Soil erosion will increase.
Explanation: Deforestation is the phenomena of removal of trees and clear cutting of the forest region so as to obtain the land for urban infrastructure, wood for furniture and for other needs. The deforestation will likely to increase and cause soil erosion due to urbanization. As, trees bind the soil with their roots which prevent the loss of soil due to erosion.
2. A) erosion
Explanation:
A clear cut logging can be define as the removal of the forested land where most of the trees are logged off. The removal of the trees from the roots will directly cause the erosion of the soil due to physical agents such as water and wind. This will deteriorate the quality of soil.
what is the correct description of lactic acid fermentation?
I need help with this question ASAP!!!!
What is the difference between speed and velocity?
A) Velocity describes speed with direction.
B) There is no difference.
C) Velocity describes direction with position.
D) Velocity is used in space; speed is used on earth.
Which simple machines combine to make scissors? A. one lever and two wedges B. two levers and two wedges C. one inclined plane and two wedges D. two inclined planes and two wedges
The simple machines that combine to make scissors are two levers and two wedges. The correct option is B.
What is simple machine?A simple machine is a mechanical device which changes the direction and magnitude of a force applied.
For scissor, we need to have two wedges and two levers, so as to make it able to cut the cloth or any other object.
Thus, the correct option is B.
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Intermolecular forces hold together which of the following?
a) Compounds
b) Charged particles
c) Atoms
d) Molecules
A honey bee flaps its wings 200 times per second. How much time is required for one wingbeat? Give your answer in milliseconds.
Answer:
The time is required for one wing beat is 5 millisecond.
Explanation:
Given that,
Frequency = 200 /sec
We need to calculate the time period
Using formula of time period
Time period is the reciprocal of the frequency.
[tex]T=\dfrac{1}{f}[/tex]
[tex]T=\dfrac{1}{200}[/tex]
[tex]T=0.005\ sec[/tex]
[tex]T= 5\ miliseconds[/tex]
Hence, The time is required for one wing beat is 5 millisecond.
solving equation for the quantity indicated
Which light interaction explains why you can see things that don’t produce their own light.
Cole and Blayne were attempting to push Hailey on a wheeled chair with enough force so Hailey would run into Mr Young. They figured out they needed a 50 N force to run the chair into Mr Young. Cole and Blayne were both applying force toward Mr Young. Cole was applying force a 20 N force to the left, and Blayne was applying (with all of his strength) a force of 15 N to the left.
What was the net force if we ignore friction?
What do we call the average motion of moving atoms and molecules in the atmosphere?
A kilograms weighs more than two of these. *The answer is a 6-letter word that has an "o" as the letter, aka -o----*
Final answer:
The word fitting the description "a kilogram weighs more than two of these" with 'o' as the second letter is 'pound.' Understanding and converting between pounds and kilograms is essential for solving multi-step weight-related problems in mathematics and science.
Explanation:
The question asks, “A kilogram weighs more than two of these.” The answer is a 6-letter word with “o” as the second letter, which is “pound.” One kilogram is approximately equal to 2.20462 pounds, making a single kilogram heavier than two pounds. In the metric system, weights are often calculated in grams and kilograms, and comparing these units requires understanding of conversion factors. For example, solving multi-step word problems involving weights in grams or kilograms often necessitates the use of the four basic operations: addition, subtraction, multiplication, and division.
This understanding helps in various scenarios, including when weighing objects or substances in science, such as comparing the weight of gases. For example, a liter of oxygen gas weighs more than a liter of water vapor; differential weights like these highlight the importance of understanding weight units and conversions in practical applications.
What is the amount of "stuff in an object?
mass is the amount of "stuff in an object
Which statement best describes resistance? Resistance is how well a current will flow in a material and is measured in volts. how well a material conducts an electrical charge and is measured in ohms. the ability of a material to attract a positive charge to create a current. the ability of a material to repel neutral charges and is measured in ohms. Can any one help?
Answer:
How well a material conducts an electrical charge and is measured in ohms.
Explanation:
B
ASAP HELP!!
If the mass of two objects is increased, what is the effect on the force between them?
The objects repel each other with less force.
The objects attract each other with less force.
The gravitational force between the objects decreases.
The gravitational force between the objects increases.
Answer:
C- The gravitational force between the object decreases.
Explanation:
Explanation
close
Gravity is the force of attraction between all masses in the universe.
The magnitude of a gravitational force depends on
the masses of the objects
the distance between the objects
The gravitational force between two bodies decreases as their masses decrease.
Solve for x. 4(x+1)≤4x+3
Answer:
There is no solution for x.
Step-by-step explanation:
Consider the provided inequality.
[tex]4(x+1)\leq 4x+3[/tex]
Distributive property:
[tex]a(b+c)=ab+ac[/tex]
Use the distributive property to simplify the above inequality.
[tex]4(x+1)\leq 4x+3[/tex]
[tex]4x+4\leq 4x+3[/tex]
Subtract 4x from both the sides.
[tex]-4x+4x+4\leq 4x-4x+3[/tex]
[tex]4\leq 3[/tex]
Which is false, as 3 is neither greater or equal to 4.
Hence, there is no solution for x.
A scientific model doesn't need to be something physical. It can also be mathematical
Measuring the size of a specific object might include which pair of SI units? A. gram, second B. candela, mole C. kilogram, ampere D. meter, kilometer
A bug walking on the circular rim of a flower pot completes one lap around the planter in 8.804s. If the radius of the planter is 13.4 cm, how fast was it traveling?
The formula to solve speed is:
Speed = Distance ÷ Time
= Circumference of pot (centimeters) ÷ 8.804 seconds
= 2πr ÷ 8.804 cm/s
= 2(3.14) (13.4) ÷ 8.804 cm/s
= 84.152 ÷ 8.804 cm/s
= 9.5583 or 9.56 cm/s (3 significant digits)
= 0.0956 m/s