Two cars are heading towards each other but are 12 km apart. one car is going 70 km/hr, and the other is going 50 km/hr. how much time do they have before they collide head on?

When one of the electrons of a particular atom undergoes a transition to a quantum state of lower energy, it a) collides with another of its electrons b) exchanges quantum states with another of its electrons c) undergoes a transition to a quantum

The wavelength of the sound is 0.750m. What is the frequency?

The difference between scalar and vector

A steel beam is rotated in a horizontal plane to provide the centripetal acceleration for training pilots. If the pilot sits 2.

A cubic piece of metal measures 7.50cm on each edge. If the metal is nickel, whose density is 8.90 g/cm3, what is the mass of the cube?

Why are the action and reaction forces described by Newton's third law of motion excluded in the free-body diagram of an object?

The small depression inside the bend of the elbow is the

If r = KL/d2 find L to the nearest tenth foot if r = 2.5 ohms, k = 10.8 and = 85 mil

A 1500 kg car accelerates uniformly from rest to reach 10.0 m sin 5.00 s. Determine (i) the average power delivered by the engine.

What is 1/3 of 300