Question 18 (1 point) A gun is fired 5,425 km away from a mountain. The sound of the shot travels 367.
How long will it take for the person who fired the gun to hear the echo? Round to
the nearest whole number.
Your

As shown in fig. p3.64, a closed, rigid tank fitted with a fine-wire electric resistor is filled with refrigerant 22, initially at 2108c, a quality of 80%, and a volume of 0.01 m3. a 12-volt battery provides a 5-amp current to the resistor for 5 minutes. if the final temperature of the refrigerant is 408c, determine the heat transfer, in kj, from the refrigerant.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).