If a bottlel filled with water 25c and freezes at - 5c the waters tempreture drop what is the sign of the systems q, w,ΔE

List three machines or devices that depend on gravity to work.

A scientist launches a 100 g ball from a catapult as part of an experiment. The ball travels at 500 m/s after launch. The catapult weighs 2,000 g and has a slight recoil. Which relationship best describes the recoil of the catapult

4. Water is flowing at 12m/s in a horizontal pipe under a pressure of 600kpa radius 2cm. a. What is the speed of the water on the other side of 0.5cm radius? b. What is the pressure of the other side?

We understand that the citizenship of an individual is a

The magnetic field of a bar magnet is the strongest ___. A: it is the same throughout the magnet B: at the poles of the magnet C: only on the north pole side of the magnet D: in the middle of the magnet

The dimensions of a block that weighs 30 N are 0.23 mx 0.12 mx 0.075 m. What pressure does the brick exert on the ground if it is resting on its largest face?

What is the current in a circuit with a 9.0 V battery and a resistance of 36.0 Ω?

Two objects attract each other gravitationally. if the distance between their centers decreases by a factor of 2, how does the gravitational force between them change

In which of the following wave types is the particle motion perpendicular to wave motion? a: longitudinal wave b: p wave c: surface wave d: transverse wave

Convert 1.5 radian into milliradians.