Two trains traveling on parallel tracks are going toward each other from a distance of 552 miles. If the freight train is moving at 38 mph and the passenger train is moving at 54 mph, when will the trains pass each other?

When does a planet have the fastest speed in its orbit? when it has a very low mass when it has a slow rotation when it is closest to the sun when it is farthest from the sun

A body of mass m is suspended from a spring with spring constant k in configuration (a) and the spring is stretched 0.1m.

While the negatively charged rod is near the disk without touching it, a hand briefly touches the end of the post. Then the negatively charged rod is removed. What would happen to the vane?

A positively charged metal sphere, A, is held close to but not touching and identical uncharged sphere, sphere B. Sphere A is now removed. After sphere A has been removed, sphere B is touched to an initially uncharged sphere, sphere C.

If 53.62 ml of an oil weighs 48.34 g what is the specific gravity of the oil

Which best blocks X-ray particles and can therefore be observed more closely through the use of this technology?

A light ray travels inside a horizontal plate of glass, striking its upper surface at an angle of incidence of 50°. This ray is totally internally reflected at the glass-air boundary. A liquid is then poured on top of the glass.

A stationary object has no forces acting on it. True False

April swims 50 m north and then turns and swims 20 m back to the south. What is her velocity if it takes her 60 seconds?

What happens to the mass of an object when it is cooled?