When traveling past an observer with a relative speed v, a rocket is measured to be 9.10 m long. when the rocket moves with a relative speed 2v, its length is measured to be 4.90 m?

Why are the very first stars thought to have been much more massive than the sun? (a the clouds that made them were much more massive than todays star-forming clouds.

After spending two hours trying to solve an engineering problem, Amira finally gave up. As she was trying to fall asleep that night, a solu?

T or f in a pinch, a pile of bricks or water pipes can be used in place of jack stands when using hydraulic jacks.

To get a sample material from the mantle, drilling will be done through the oceanic crust rather than through the continental crust because oceanic crust it? Explain why? 1) younger than the continental drift. 2) more dense than continental crust.

Which statement describes the daily motion of the moon? rises and sets at same time rises and sets 50 minutes later rises 50 minutes later, sets 50 minutes earlier rises 50 minutes earlier, sets 40 minutes later

Anything dissolved in water

Length of two cylinders are measured to be L1 = 5.62 + / - 0.01cm and L2 = 4.34 + / - 0.02cm. calculate difference in error and error limit.

If you push an object twice as far while applying the same force, you do ...

Jane, looking for tarzan, is running at top speed (5.2 m/s) and grabs a vine hanging 4.5 m vertically from a tall tree in the jungle. how high can she swing upward?

What is p in physics?