What equation should be used to find the net force in the y-direction?
Fnet, y = FN-FI
Fnet, y = Fp-Ft
Fnet. y = FN-F,-Focos(32)
Fnet y = Fn-Fg - Fpsin(32)

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

State the below theories and give the name of the writer of the theory 1. wave theory 2. quantum theory 3. corpuscular theory 4. electromagnetic theory

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?