Find the speed of an object that covers 400 km

in 5 hr.

Joy is drinking a cup of water in her mom's car. As her mom stops the car at a red light, Joy's water spills. How can this be explained in terms of inertia?

Do magnets work through glass?

Partial melting and the production of magma takes place at? this is for 8th grade class

Which statement is characteristic of a concave lens? It reflects most light. It is thickest in the middle. It bends light rays outward. It is made of opaque material.

Sound travels slower in colder air than it does in warmer air. Make a claim about the effect of air temperature on the speed of sound.

Examine the situation. Lloyd is studying the effect of breakfast cereal on the health of rats. He suspects that the cereal may be unhealthy. He feeds rats various amounts of breakfast cereal over a six-week period.

An electron travels into a 0.5 T magnetic field perpendicular to its path, where it moves in a circular arc of diameter 0.028 m. What is the kinetic energy of the electron?

What feels the strongest pull toward Earth and why? a box containing 10 baseballs or a box containing 15 baseballs?

Hello what is the meaning of physical science

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?