Which layer is thinnest under the oceans and thickest in the mountains
When you add heat energy the molecules move ______ and _____
Ignoring effects caused by differences in depth, the pressure in a contained fluid is __________.
a. the same throughout the fluid
b. higher in some places and lower in other places
c. unknown as long as the fluid is contained
what i the distance that light moves in a year called
nocturnal year
solar year
planetary year
light-year
Answer:
correct answer is - light year
Explanation:
which weights would you use on a single thread to create a 6.86N force
6.86 N = (mass) x (9.8 m/s²)
Mass = (6.86 N) / (9.8 m/s²)
Mass = (6.86 kg-m/s²) / (9.8 m/s²)
Mass = (6.86/9.8) kg
Mass = 0.7 kilogram
I would use the 500-gram weight and the 200-gram weight, and hang them both from the end of the thread. Then the total mass on the end of the thread is 700 grams. When I take it to Earth, it will weigh 6.86 N .
During an exothermic process, _____. during an exothermic process, _____. no heat is exchanged between the system and the surroundings the system feels cold to the touch heat flows from the system to the surroundings heat flows from the surroundings to the system
What do the vertical columns in the periodic table indicate?
A.periods
B.liquids
C.synthetic elements
D.groups and families
The correct answer is
D. Groups and Families
I did the quiz nd this was the right answer
Hopes this helps :)
What is the velocity of a wave with a frequency of 760 Hz and a wavelength of 0.45 m?
Final answer:
Velocity of a wave is obtained by multiplying its frequency by its wavelength. In this case, the velocity of the wave with a frequency of 760 Hz and a wavelength of 0.45 m is 342 m/s.
Explanation:
Velocity of a wave is calculated by multiplying the frequency of the wave by its wavelength. In this case, with a frequency of 760 Hz and a wavelength of 0.45 m, the velocity of the wave can be found by multiplying the frequency and the wavelength: 760 Hz x 0.45 m = 342 m/s.
If i measure the parallax of a star to be 0.125 arc seconds, what is its distance in parsecs?
To compute for the distance of a star given the parallax, we simply have to take the reciprocal of the magnitude of parallax. In this case, distance is:
distance = 1 / parallax
distance = 1 / 0.125
distance = 8 parsecs
The ________ approach emphasizes looking at the whole, rather than the sum of its parts.
psychodynamic
behavioral
functionalism
Gestalt
Which would usually be studied by a geologist
If a person has the values for an objects density and volume , what value can be calculated
Answer:If a person has the values for an object’s density and volume, what value can be calculated?
Explanation: The answer is C
what essential characteristic does a good experiment have? a. a control group is given the experimental treatment. b. a single variable is tested. c. a control is used. d. both b and c
A good experiment should have a control and test a single variable.
Explanation:A good experiment should have the essential characteristic of using a control to compare the results of the experimental treatment. This ensures that any changes or effects seen in the experimental group can be attributed to the treatment being tested and not to other factors. Additionally, a good experiment should test a single variable to isolate the specific factor being studied.
For example, if a scientist is testing the effect of a new fertilizer on plant growth, they would have two groups of plants - one receiving the new fertilizer (experimental group) and one receiving no fertilizer (control group). By comparing the growth of the two groups, they can determine if the fertilizer had any effect.
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Calculate the moment of inertia of uniform circular disc of mass 500g, radius 10cm about 1.the diameter of the disc. 2. the axis tangent to the disc parallel to its diameter 3.the axis through the center of the disc and perpendicular to its plane
Mass of the disc is equal to 500 g (m=500 g)
Radius of the disc if equal to 10 cm (r=10 cm)
1. The diameter of the disc:
D = 1/4 (m) (r)^2
= 1/4 (500) x 10^2 g cm^2
= 12500 g cm^2
2. The axis tangent to the disc and parallel to its diameter:
= 1/4 (m) (r )^2 + m (r )^2
= 5/4 x 500 x 10^2 g cm^2
= 62500 g cm^2
3. The axis through the center or the disc and perpendicular to its plane:
= 1/2 (m) (r )^2 – ½ x 500 x 10^2 g cm^2
= 25000 g cm^2
The moment of inertia for the disc about its diameter is 0.0025 kg.m², the moment of inertia about an axis tangent to the disc parallel to its diameter is 0.0075 kg.m², and the moment of inertia about an axis through the center and perpendicular to the disc's plane is 0.005 kg.m².
Explanation:The moment of inertia (I), a measure of an object's resistance to rotational motion about an axis, varies depending upon the axis of rotation. Various formulae apply for different axes:
About the diameter of the disc: Here, the formula is I = 1/2 ×m ×R², where m is the mass and R is the radius. Substituting the provided values(m = 500g = 0.5kg, R = 10cm = 0.1m), we find that the moment of inertia about the diameter is I = 1/2 ×0.5kg × (0.1m)² = 0.0025 kg.m².The axis tangent to the disc parallel to its diameter: For this case, we would use the parallel axis theorem: I = I_center of mass + m×d². Here, d is the distance from the center of mass to the new axis, which equals the radius (R). Since the moment of inertia about the diameter (I_center of mass) is 0.0025kg.m², the moment of inertia for this axis is I = 0.0025 kg.m² + 0.5kg × (0.1m)² = 0.0075kg.m².The axis through the center of the disc and perpendicular to its plane: Here, the formula is I = m × R². Substituting the given values, we find the moment of inertia is I = 0.5kg × (0.1m)² = 0.005 kg.m².Learn more about Moment of Inertia here:https://brainly.com/question/30051108
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What is the relationship between work and power
Power is a measure of how quickly work is done or how quickly energy is transferred. The relationship between work and power is (P) = W ÷ t
The following equation describes how work and power are related:
Power (P) = W ÷ t
The power production is larger when the same amount of work is completed in less time. On the other hand, if the work is spread out over more time, the power production is lower.
For instance, if two people work equally hard but one does the task faster than the other, that person is exerting more power than the person who takes longer.
This relationship demonstrates how power is influenced by both the quantity and duration of work.
Therefore, The relationship between work and power is (P) = W ÷ t
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A bucket of mass 1.90 kg is whirled in a vertical circle of radius 1.45 m . at the lowest point of its motion the tension in the rope supporting the bucket is 24.0 n . find the speed of the bucket
What is the pressure of a 59.6-l gas sample containing 3.01 mol of gas at 44.9°c? (r = 0.0821 l • atm/(k • mol), 1 atm = 760 torr)?
Final answer:
The pressure of a 59.6-l gas sample containing 3.01 mol of gas at 44.9°C is approximately 1.31 atm or 995.6 torr, calculated using the ideal gas law equation.
Explanation:
To find the pressure of a gas sample, which contains 3.01 mol of a gas at a volume of 59.6 L and a temperature of 44.9°C, we can use the ideal gas law: PV = nRT. First, we need to convert the temperature to Kelvin by adding 273.15 to the Celsius temperature, giving us a temperature of 318.05 K. Using the given constant R = 0.0821 L • atm/(K • mol), we can rearrange the ideal gas law to solve for P (pressure).
The calculation is as follows:
P = (nRT) / V
P = (3.01 mol × 0.0821 L • atm/(K • mol) × 318.05 K) / 59.6 L
P ≈ 1.31 atm
Converting this to torr using the conversion 1 atm = 760 torr, we have:
P ≈ 1.31 atm × 760 torr/atm
P ≈ 995.6 torr
Which statement about the greenhouse effect is NOT true?
A) The greenhouse effect keeps Earth from becoming too hot during the day.
B) The greenhouse effect causes the change in seasons.
C) The greenhouse effect keeps Earth from becoming too cold during the night.
D) The greenhouse effect makes it possible for organisms to live on Earth.
E) The greenhouse effect can be influenced by human activity.
Answer: D). The greenhouse effect makes it possible for organisms to live on Earth.
Explanation:
Greenhouse effect is a phenomena which depicts the fact that the heat energy from the earth does not reflect back to the space which has been obtain from the sun. This is caused by the greenhouse gases which traps the heat energy from sun making the atmosphere hot.
This results in fluctuations in climatic conditions. Responsible for melting of glaciers hence, the organisms which are adapted to survive in glaciers will not be able to survive in hot climatic conditions. Also the organisms living in the terrestrial regions cannot tolerate excess heat and will die.
You throw a ball downward from a window at a speed of 2.5 m/s. how fast will it be moving when it hits the sidewalk 2.1 m below?
how long will it take to travel 200,000m traveling 10m/s
Wave C has an amplitude of 1 and wave D has an amplitude of 3 as shown below. What will happen when the trough of wave C meets the crest of wave D?
They will interfere to create a crest with an amplitude of 4.
They will interfere to create a crest with an amplitude of 2.
They will interfere to create a crest with an amplitude of 0.
They will bounce off each another.
Answer:
They will interfere to create a crest with an amplitude of 2.
Explanation:
The two waves will interfere and the resultant amplitude will be given by the principle of superposition, which states that the resultant amplitude is given by the sum (or the difference, if they meet in opposite phase) of the amplitudes of the two waves. In this case, the crest of wave C meets the through of wave D, so they are in opposite phase, therefore the resultant amplitude will be
A = A(C) - A(D) = 3 - 1 = 2
Which of the following is not an application of Doppler technology?
police speed guns
weather radar
ultrasound imaging of the liver
determining the motion of a star
Answer:
ultrasound imaging of the liver.
Explanation:
Liver ultrasound is not an application of the Doppler effect. The use of ultrasound is more common in medicine, for example, during pregnancy.
Another application in medicine is with the movement of blood. It is a flowmeter which allows the blood flow to be discovered through the Doppler effect, since a sound wave affects the red blood cells that are in motion inside the vessel and collect the echo signal.
Lydia is often described as having a positive outlook on life. She assumes the best of people and situations. Lydia exemplifies ________.
Answer:
Optimism.Explanation:
Optimism could be defined as a spiritual and mental disposal for positive outcomes, refers to the best future coming, the opposite of pessimism.
A optimistic person is who have a positive view of situation, even if it isn't seem like that, even these kind of people see positiveness in others, like Lydia.
A girl sits on a tire swing and is pushed in a circular motion by her father. Her tangential speed is 2.8 m/s and the girl travels in a circle with a diameter of 4.0 m. What is the girl's centripetal acceleration?
Answer:
[tex]a_c = 3.92 m/s^2[/tex]
Explanation:
tangential speed of the girl is given as
[tex]v_t = 2.8 m/s[/tex]
diameter of the circle is given as
[tex]d = 4.0 m[/tex]
so here the radius of the circle is given as
[tex]R = 2.0 m[/tex]
now we know that centripetal acceleration of the object moving in circle is given as
[tex]a_c = \frac{v^2}{R}[/tex]
[tex]a_c = \frac{2.8^2}{2}[/tex]
[tex]a_c = 3.92 m/s^2[/tex]
A ball is thrown horizontally from the roof of a building 7.8 m tall and lands 9.5 m from the base. what was the ball's initial speed
The problem deals with finding the initial horizontal speed of a ball thrown from a building, using kinematic equations and the principles of projectile motion.
Explanation:The student is asking about the initial speed of a ball that is thrown horizontally from the roof of a building. To solve this problem, we need to use the principles of kinematics, specifically the equations of motion for uniformly accelerated bodies. Since the ball is thrown horizontally, its initial vertical speed is 0 m/s. The only vertical motion is due to gravity. We can calculate the time it takes for the ball to hit the ground using the formula for free fall distance d = rac{1}{2}gt^2, where d is the distance fallen, g is the acceleration due to gravity (9.8 m/s^2), and t is time. Solving for t, we find that t = rac{2d}{g}.
When using science to investigate physical phenomena, which of the following is NOT a characteristic of the event must exist?
jack tries to place magnets on his refrigerator at home, but they won’t stick. What could be the reason?
I Honestly Think Its A, If Its Wrong Im Sorry. But Im Sure Its A
At 16, Juana is at an appropriate weight and likes to eat whatever she wants to.
What's the best strategy to ensure Juana's health?
Answer:
Regular exercise, play some sport, take healthy diet.
Explanation:
(1) She should walk one time in a day for like 30 minutes or more and will pay attention towards her diet to prevent further weight gain
(2) She can engage herself in aerobic exercises and start taking the food that is rich in nutrients and fiber
.
(3) She can play aerobic sport like soccer and can reduce her calorie intake to 1850 per day.
These are the best strategies she can adopt to ensure her heath.
Assume that you stay on the earth's surface. what is the ratio of the sun's gravitational force on you to the earth's gravitational force on you?
The ratio of gravitational force of the sun to the earth's gravitational force is about 1 : 1580
[tex]\texttt{ }[/tex]
Further explanationNewton's gravitational law states that the force of attraction between two objects can be formulated as follows :
[tex]\large {\boxed {F = G \frac{m_1 ~ m_2}{R^2}} }[/tex]
F = Gravitational Force ( Newton )
G = Gravitational Constant ( 6.67 × 10⁻¹¹ Nm² / kg² )
m = Object's Mass ( kg )
R = Distance Between Objects ( m )
Let us now tackle the problem !
[tex]\texttt{ }[/tex]
Given:
radius of Earth = Re = 6.4 × 10⁶ m
mass of the Earth = Me = 6.0 × 10²⁴ kg
distance from Sun to Earth = Rs = 147 × 10⁹ m
mass of the Sun = Ms = 2.0 × 10³⁰ kg
Asked:
ratio of gravitational force of the sun and the earth = ?
Solution:
[tex]F_s : F_e = G \frac{ m M_s }{R_s^2} : G \frac{ m M_e }{R_e^2}[/tex]
[tex]F_s : F_e = \frac{ M_s }{R_s^2} : \frac{ M_e }{R_e^2}[/tex]
[tex]F_s : F_e = \frac{ 2 \times 10^{30} }{(147 \times 10^9)^2} : \frac{ 6.0 \times 10^{24} }{ (6.4 \times 10^6)^2}[/tex]
[tex]F_s : F_e \approx 1 : 1580[/tex]
[tex]\texttt{ }[/tex]
Learn moreImpacts of Gravity : https://brainly.com/question/5330244Effect of Earth’s Gravity on Objects : https://brainly.com/question/8844454The Acceleration Due To Gravity : https://brainly.com/question/4189441[tex]\texttt{ }[/tex]
Answer detailsGrade: High School
Subject: Physics
Chapter: Gravitational Fields
The ratio of the Sun's gravitational force on an individual to that of Earth's can be found using Newton's Law of Universal Gravitation, which takes into account the masses of the Earth and Sun and the distances from the individual to the centers of these celestial bodies.
Explanation:
To calculate the ratio of the Sun's gravitational force on you to the Earth's gravitational force on you, we would use Newton's Law of Universal Gravitation, which states that the force of gravity between two masses is proportional to the product of their masses and inversely proportional to the square of the distance between their centers. For an object of mass m on the Earth's surface, the gravitational force it experiences due to the Earth (Fearth) can be calculated using the formula:
Fearth = G × (Mearth × m) / r2
where G is the gravitational constant, Mearth is the mass of the Earth, m is the mass of the object, and r is the radius of the Earth. Similarly, the gravitational force due to the Sun (FSun) is:
FSun = G × (Msun × m) / d2
where Msun is the mass of the Sun and d is the average distance from the Earth to the Sun. Given that both m and G are constants and cancel out when we take the ratio FSun/Fearth, the final ratio depends only on the masses of the Earth and Sun and the distance between the Earth and the Sun relative to the radius of the Earth.
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Rarefaction occurs only in a ___ wave.
A: transverse
B: longitudinal
C: sympathetic
D: forced
Answer:B: longitudinal
Explanation: