An m = 14.0 kg mass is attached to a cord that is wrapped around a wheel of radius r = 14.0 cm (see the figure below).

A 1.00-mol sample of an ideal diatomic gas, originally at 1.00 atm and 25 ∘C, expands adiabatically to 1.80 times its initial volume. What are the final pressure for the gas? (Assume no molecular vibration.) What are the final temperature for the gas? Express your

1. The stack of magnets works as one big bar magnet. Do the poles change when you divide the magnet into pieces?

I really need help with making graphs for this data. Here are the questions below!

A 1290 N uniform boom is supported by a cable perpendicular to the boom, as seen in the figure below.

Part A An ideal gas expands through an adiabatic process. Which of the following statements is/are true? Check all that apply. Check all that apply.

Four Hydrogen nuclei have more mass than a single Helium nucleus. What effect does this have on a star?

You slightly shrink the Sun in radius, what happens to the temperature, and then what happens next?

Select the correct ratio for the time required for a projectile to reach its highest point and the time for it to return to its original height if air resistance is neglible.

A 2.00-kg bucket containing 14.0 kg of water is hanging from a vertical ideal spring of force constant 450 N/m and oscillating up and down with an amplitude of 3.00 cm. Suddenly the bucket springs a leak in the bottom such that water drops out