A train travelling at 50km/h approaches another train moving towards the first at 90km/h. If they are 35km apart (on a straight track) how long does it take before they meet?

A forest ranger might be ranked as being high in what type of intelligence?

If a star's parallax angle is too small to measure, what can you conclude about the star's distance from the Earth?

How many times does the earth circle around the sun

What is a long distance surface current?

A satellite with a mass of 5.6 E 5 kg is orbiting the Earth in a circular path. Determine the satellite's velocity if it is orbiting at a distance of 6.8 E 5 m above the Earth's surface. Earth's mass = 5.98 E 24 kg; Earth's radius = 6.357 E 6 m.

What is the study of motion of objects, and related concepts of force and energy

Sliding friction definition

How much would a 100kg man weigh on the surface of the sun where the acceleration is 274 m/s

How much current is in a circuit that includes a 9 - volt battery and a bulb with a resistance of 12 ohms?

Find the current Voltage VD and current ID in the following circuit assuming (a) ideal diode. (b) Constant voltage drop model with Von = 0.75V (c) using the exponential model (I_0=1*10^ (-14)). Verify your results through Multisim simulation