A well fed squirrel(mass of 1.2kg) does push-ups by applying a force to elevate its center-of- mass by 5cm. Calculate the number of pushups that the squirrel must do in order to do 18.0 Joules of work. Hints: The formula requires a force. The formula to calculate weight(aka your downward force) is w=mg. Use 10.0 for g. The formula requires displacement in "meters". Convert(cm) to (m). If the squirrel does a total of 18.0 Joules of work, then it must have done___ push-ups.​

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.