a 4.00 mC is 1.5m from a - 3.00mC charge. find the magnitude of the electrostatic force between these two charges. is the force attractive or repulsive?

You drive your car in a straight line for 15 m/s for 10 minutes then at 25 m/s for another 10 minutes. Is your average speed for the entire trip 20 m/s?

A 5 v battery is connected to a resistor which draws a 2 a current. What is the power used by this circuit

Order the speed of sound through these materials from the slowest to the fastest. speed of sound in cold air speed of sound in hot molten lead speed of sound in warm air speed of sound in water

A projectile is launched from ground level to the top of a cliff which is 195m away and 155m high. If the projectile lands on top of the cliff 7.6s after it is fired, find the initial velocity of the projectile (mag. and direction).

3. What average net force is required to stop a 7 kg shopping cart in 2 s if it's initially traveling at 3.5 m/s?

A car rounds a 75-m radius curve at a constant speed of 18 m/s. a ball is suspended by a string from the ceiling the car and moves with the car. the angle between the string and the vertical is:

Emission of light from an atom occurs when an electron

Which is an example of transfroming potential energy to kinetic

Place the ball in the plastic bag, and twist the top so the ball is secure in the bag. Wrap the twisted portion with tape so it stays tight. Use the hole punch or scissors to poke a hole in the part of the bag that's above the ball.

Choose The units of 1/4πε0 are: A. N2C2 B. N • m/C C. N2 • m2/C2 D. N • m2/C2 E. m2/C2