Two airplanes leave an airport at the same

time. The velocity of the first airplane is

650 m/h at a heading of 60.5

◦

. The velocity

of the second is 560 m/h at a heading of 85◦

.

How far apart are they after 2.9 h?

A car accelerates uniformly from rest to a speed of 76.8 mi/h in 7.62 s. Find the constant acceleration of the car. Answer in units of m/s2

You want the current amplitude through a 0.450-mH inductor (part of the circuitry for a radio receiver) to be 1.80 mA when a sinusoidal voltage with amplitude 12.0 V is applied across the inductor. What frequency is required?

Relate real life phenomenon of mechanic

A capacitor with plates separated by distance d is charged to a potential difference ΔVC. All wires and batteries are disconnected, then the two plates are pulled apart (with insulated handles) to a new separation of distance 2d.

Describe the relationship of the Earth's lithosphere to the asthenosphere.

Jenny is driving across the country. At times, there is no signal to her mobile telephone or pager. What might be the reason for this?

With your bare feet, stand with one foot on a rug, and the other foot on a tile, linoleum, or wood floor. Which one feels colder? Which one is really colder? Explain what is going on in a paragraph.

A firewoman dropped a person onto the safety net. Right before the person hit the net he had a velocity of 11.2 m/s and 1800 J of kinetic energy. What was the mass of the person?

What causes standing wave?

If you lived downhill from a volcano and lava started to flow toward your home what could happen?