A particle exhibiting SHM moves along the x-axis in accordance with thedisplacement x=5cos(4 pi t+ pi 3 )cm What is (i) amplitude of motion? (ii) period of motion (iii) frequency of motion? (iv) time for x = 0

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .

How does changing the frequency affect the energy of the wave?