The force of gravity increases with an increase in the mass of objects. . . . A large, massive dog weighs more than a small dog.
Acceleration due to gravity is independent of the mass of objects. . . . Two falling inflated balls of different masses land at the same time.
Air resistance increases with an increase in the surface area of objects. . . . A crumpled ball of paper falls faster than a sheet of paper of the same mass.
arrowRight . . . . a button on a computer keyboard that causes the cursor to move to the right on the screen when pushed
arrowRight . . . . a button on a computer keyboard that causes the cursor to move to the right on the screen when pushed
arrowRight . . . . a button on a computer keyboard that causes the cursor to move to the right on the screen when pushed
Answer:
The centripetal acceleration of the rock is decreases by a factor of 3.
Explanation:
Given that,
Radius of circle
Time period = T
Radius of new circle
We need to calculate the velocity
Using formula of velocity
The time period for new circle
The time period remains same.
Put the value in the equation
The acceleration of the rock is
We need to calculate the acceleration of the new rock
Using formula of acceleration
Put the value into the formula
Hence, The centripetal acceleration of the rock is decreases by a factor of 3.
Answer: True
Refraction is a phenomenon in which the light bends or changes its direction (and changes the speed of propagation, as well) <u>when passing through a medium</u> with a refractive index <u>different from the other medium. </u>
Where the Refractive index is a number that describes how fast light propagates through a medium or material:
Being a relation between the speed of light in vacuum and its speed in the other medium
.
It is important to note that in this process, the wavelength may be modified because it depends on the medium, however, the refracted ray of light does not change its frequency.
The amount of energy in food is measured in calories.
Wats and kilowatts are units for electricity. Grams are a unit of mass.