Our galaxy, the Milky Way, has a diameter of about 100,000 light years. How many years would it take a spacecraft to cross the galaxy if it could travel at 99% the speed of light?

A piston above a liquid in a closed container has an area of 1m2. The piston carries a load of 350 kg. What will be the external pressure on the upper surface of the liquid?

What type of circuit fault is characterized by there being a voltage drop where there should not be a voltage drop?

In a crash test, a 2,500 kg car hits a concrete barrier at 1.3 m/s2. If the car strikes the barrier with a force of 3,250 N, how much resistance force does the barrier provide? N This pair of forces is an example of Newton's law of motion.

a car enters freeway with speed of 6.4m/s and accelerates uniformly for 3.2 Km in 3.5 min. how fast in m/s is the car moving after. this time

What determines magnetism?

Which statement is true? Select one of the options below as your answer: A. Quarks always occur in groups with leptons. B. Quarks always occur independently. C. Quarks always occur in groups with other quarks. D.

Peat is actually the early stage of

Explain how electric current is able to flow.

What is the angle between a rigid object and the force applied to it that yields torque using the equation T=Fd?

What is the difference between speed and velocity and give an example.