Identify the names of animals that lived on earth before dinosaurs

Suppose that two objects form together (i. e., at the same time), in orbit around each other, one with a mass 15 times that of Jupiter, and the other 5 times that of Jupiter. Would these objects be classified as planets

A small block with mass 0.200 kg is released from rest at the top of a frictionless incline. The block travels a distance 0.202 m down the incline in 2.00 s. The 0.200 kg block is replaced by a 0.400 kg block. If the 0.

A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a constant force of 47 N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 354 J?

In an experiment, a researcher can make claims about causation

If velocity is postive, which would most likely yield a negative acceleration

Through which medium would EM waves travel the fastest? A. The Ocean B. The Atmosphere C. Rocks

Average mass of a toy car (small, hot wheels) ?

A cannon directed straight upward launches a ball with an initial speed v. The ball reaches a maximum height h in a time t. Then, the same cannon is used to launch a second ball straight upward at a speed 2v.

Does the sun fuse hydrogen into helium or vice versa?

Is it possible to put a distance versus time graph to be universal go mine