An object fall from the top of the building 50m high.

1. How long it take to fall?

2. What is it speed when hate the ground?

using g=10 meter per second

What if energy, like electricity, could not be converted to other forms like sound, heat, motion, or light?

A student lists three temperature measurements: 100°F, 100°C, and 100 K. Of the three measurements, 100 K is the highest temperature.

A vector of components (6, 2) is multiplied by the scalar value of 3. What is the magnitude and direction of the resultant vector? magnitude: 19.0; direction: 18.4° magnitude: 8.49; direction: 45.0° magnitude: 2.11; direction: 12.6° magnitude: 18.

What is meant by the frequency of a wave? What is the unit?

If the torque on an object adds up to zero A) the forces on it also add up to zero. B) the object is at rest.

What's the definition of: • cellular respiration • photosynthesis

What are the steps that are important to take for your safety during an earthquake? a. stay away from walls and windows c. stay away from electrical and gas lines b. get under a desk or table d. all of the above

You have an open air column of length 1.40 m in air at 24.2 °C. What is the frequency of the third harmonic?

Why do we use average force while solving momentum problems? How is net force related to the momentum of the object?

If you had a positive 8 score on the sit-an-reach test you