Which speed is at the sound barrier?

5 m/s

257 m/s

3.0 x 10⁸ m/s

343 m/s

A neuron dna exists within its

What is the defination of force

A 0.065-kg tennis ball moving to the right with a speed of 15 m/s is struck by a tennis racket, causing it to move to the left with a speed of 15 m/s. if the ball remains in contact with the racquet for 0.

Humans have nearly 80 different kinds of organs. Each organ serves a specialized purpose in the body. For example, the brain serves as the control center of the body.

Which of the following is a dimensioning guideline? A. Use the least number of dimensions needed. B. Always dimension hidden lines. C. Put dimensions inside of objects. D. Line dimension numbers up in a row.

A pendulum swings with amplitude. 02 m and period of 2 s what is its maximum speed

What bone cells respond to stress?

What are two ways that convention currents in the ocean distribute the suns energy?

A 535 kg roller coaster car began at rest at the top of a 93.0 m hill. Now it is at the top of the first loop-de-loop. This roller coaster's track is nearly frictionless, so resistance can be ignored. Using g = 9.

A bulldozer does 45,000 joules of work to push a boulder a distance of 30 meters. How much force is applied to push the?