The Earth is approximately 150 million kilometers away from the Sun. If light travels at a speed of approximately 300,000 kilometers per second, about how long does it take for light from the Sun to reach the Earth?

How does the number of sunspots change over time

A car with a mass of 2500 kg accelerates when the traffic light turns green. If the net force on the car is 5000 Newton's, what is the car's acceleration?

A box is lifted at a constant speed of 7.0 m/s by a machine. If the power of the machine is 21000 W, then the force applied is equal.

How are the current and resistance related when the voltage if a circuit is constant

This includes all the means for communicating information to the general public. a. wire services c. newspapers b. mass media d. telecommunications

In a perfectly inelastic collision, the total momentum of the system ___ (i) ___ constant, while the total kinetic energy of the system___ (ii) ___constant.

What factors determine power

Superman, with a mass of 150kg, goes into outer space to push a 125000kg alien spaceship out of stationary orbit. He uses his super strength and pushes the ship away ay at speed of 150m/s. What is the speed of Superman after his big push

Most telephone cables are made of copper wire of either 24 or 26 gauge. If the resistance of 24-gauge wire is 137 Ω/mile and the resistance of 26-gauge wire is 220 Ω/mile, what is the ratio of the diameter of 24-gauge wire to that of 26-gauge wire?

Classify the sentences based on whether they describe temperature or thermal energy.