When a 2.75-kg fan, having blades 18.5 cm long, is turned off, its angular speed decreases uniformly from 12.0 rad/s to 7.0 rad/s in 5.00 s. if its angular acceleration does not change, how long after it is turned off does it take the fan to stop?

As an electron goes from a higher energy level to a lower energy level in an atom, will energy be given off or absorbed?

What conclusions can be drawn about the existence of carbon-12, carbon-13, and carbon-14? Question 5 options: These are forms of carbon and they accommodate 6 neutrons and 6 electrons but each contains a difference number of protons - 6, 7, and 8

Once a falling has reached a constant velocity, the object

1) what's the recommend amount of uv protection that sunglasses should provide? a. 50% b. 75% c. 80% d. 100%2) one way to ensure good sleep hygiene is to change your bedtime frequently. truefalse

A projectile is launched from ground level to the top of a cliff which is 195m away and 155m high. If the projectile lands on top of the cliff 7.6s after it is fired, find the initial velocity of the projectile (mag. and direction).

What does Newton's second law of motion say

Two sinusoidal waves are moving through a medium in the positive x-direction, both having amplitudes of 7.00 cm, a wave number of k=3.00m-1, an angular frequency of ω=2.50s-1, and a period of 6.00 s, but one has a phase shift of an angle ϕ=π12rad.

Which season does the Southern Hemisphere experience when it is tilted toward the sun? A. winter B. summer C. spring D. autumn

For an ideal fluid flowing through a horizontal pipe, Bernoulli's principle and the continuity equation state that the pressure within the pipe does which of the following? (Assume measurements are taken along the pipe in the direction of fluid flow.

A bowling ball has a mass of 40kg and is kicked with a force of 10 N. What is it's acceleration