What is a reflection of a wave?

Your spaceship lands on an unknown planet. To determine the characteristics of this planet, you drop a wrench from 3.00 m above the ground and measure that it hits the ground 0.

Imagine a ringing bell set inside a sealed glass jar. Once all the air is removed and a vacuum is crated, the ringing sound is no longer heard. Explain why this happens. A. The lack of air in the jar causes the ringing to stop. B.

The period of an oscillating particle is 32 s, and its amplitude is 15 cm. at t = 0, it is at its equilibrium position. find the distances traveled during these intervals. (a) t = 0 to t = 8 s

A 1,492.3-kg airplane travels down the runway. Each of its four engines provides a force of 1,447.5 N. Find the acceleration of the airplane, in m/s2. (Ignore friction.)

A 1-kg ball is thrown at 10 m/s straight upward. neglecting air resistance, the net force that acts on the ball when it is half way to the top of its path is about

A 6 kg table has a net force of 15 N acting on it. What is the magnitude of the acceleration of the table?

What would a drummer do to make the sound of the drum give a note of lower pitch?

Um atleta correu 400 metros em 80 segundos. Qual é sua velocidade média?

An object at free fall near the Earth's surface experiences constant velocity. True or false?

Ian walks 2km to his best friends house, the. Walks. 5km to the library. Then makes a 2.5 km walk home. The entire walk took 3 hours. What is his average speed in km/h?