A 50-ω resistor is connected to a 9.0 V battery. How much thermal energy is produced in 7.5 minutes? Question 25 options:

1.2 102 J

1.3 103J

3.0 102 J

7.3 102 J

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Sound is a disturbance that travels through a medium as a