If a wave transfers from one medium to another medium with different properties, which statement is true?(1 point) The frequency remains constant.
The frequency remains constant.

The period and the speed of the wave change proportionally.
The period and the speed of the wave change proportionally.

The frequency changes, while the wavelength and the speed of the wave remain the same.
The frequency changes, while the wavelength and the speed of the wave remain the same.

The period changes, while the wavelength and the speed of the wave remain the same.

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal. find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)