Two trains start a journey at the same time 120 miles apart, travelling towards each other. The first train is travelling at 60 mph and the second train is travelling at 40 mph. How long does it take for the two trains to meet?

The magnitude of the magnetic flux through the surface of a circular plate is 6.00 10-5 t · m2 when it is placed in a region of uniform magnetic field that is oriented at 31.0° to the vertical. the radius of the plate is 8.50 cm.

If the earth was a spinning globe, what would happen to the oceans?

Parallax can be used to measure a star's

A single loop of wire with an area of 0.0900 m2 is in a uniform magnetic field that has an initial value of 3.80 T, is perpendicular to the plane of the loop, and is decreasing at a constant rate of 0.190 T s.

Calculate the frequency of a light wave that has a wavelength of 3.25x10-6 m

Power=170 watts time=20 seconds

What is the charge of alpha, beta and gamma rays?

A pair of scissors is a complex machine. what simple machines make up a pair of scissors?

Methane gas absorbs red light, and methane clouds reflect blue light, giving Uranus and Neptune their distinctive blue colors. Why do Uranus and Neptune have methane clouds, but Jupiter and Saturn do not

A car traveled 1025 kilometers from El Paso to Dallas in 13.5 hours. What was it's average velocity?