A hot air balloon contains 85,000 moles of air. To what temperature must the

air be heated to fill a volume of 2500 m at a pressure of 100 kPa? A. 260K

B. 2900 K C. 350 K

D. 0.35 K

When we make our memories consistent with our current beliefs or attitudes, we are experiencing?

What is the wavelenght and the frequencen of walkie-talkie?

True or false the Richter scale describes the effects of an earthquake on people, buildings, and land at a given location.

Number of atoms present in 1 mole of oxygen atom

If two objects have an overall gravity of 360N, what will the gravity be if the distance is cut into half of its original value?

T=2π√ (l/g) is dimensionally correct

A penny falls from a windowsill which is 25.0 m above the sidewalk. How much time does a passerby on the sidewalk below have to move out of the way before the penny hits the ground?

Show that the Newton has the units of mass times acceleration.

Light travels at 150000000km from the sun to earth in 8 minutes. What speed is this in Km/s

Electricity problem (coulomb's law)