Ice of mass 5 g at 0 °C melts to water at 0 °C.

Find the energy absorbed by the ice.

(Specific latent heat of fusion of ice = 3.34x10^5 J kg-1)

The formula s = 16t2 gives the distance an object falls due to gravity, where s is the distance in feet and t is the time in seconds. how many feet will the object fall in 6 seconds?

Express 50,000 m/s2 in scientific notation.

A 20 watt lightbulb uses 20 Joules of energy every second. A person expends 50 watts of energy per stair when climbing up stairs. How long could you light the lightbulb if the energy used to climb 20 stairs were converted to electricity?

What is the average power output of an athlete who can life 9.0 * 10^2 kg 2.5 m in 2.0 s?

If forces acting on an object are unbalanced, which factors may result from an unbalanced force? Check all that apply. The net force is negative. The net force is zero. The net force is positive. There is a change in motion.

Does light speed up or slow down when it travels from air to liquid

What is Earth's innermost layer?

Magnus is installing a resistor in series with the bimetallic switch. why is he doing this? a. to avoid archin. b. to make the thermostat snap or operate more quickly. c. to change the operate thermostat temperature. d. to anticipate heat changes

How far away is Pluto?

How much of earths gravitational force acts on everyone and everything onboard of the international space station? A) none B) approx. 90% C) approx. 100% D) approx. 110%