A rock hits the ground with a speed of 7 m/s and a kinetic energy of 100 J. What is the rock's mass?

The gravitational pull of the Moon is much less than the gravitational pull of Earth. Which two statements are true for an object with a mass of 20 kilograms that weighs 44 pounds on Earth? O A. The object's weight would be the same on the moon B.

A 1.5m wire carries a 3 A current when a potential difference of 74 V is applied. What is the resistance of the wire? Answer : Units

It takes Andy 0.50 seconds to lift a 98-newton box from the floor and place it on the table. If he expends a constant power of 137 watts during this time, what is the height of the table?

In the nature-nurture debate, nature refers to the influence of the environment.

It takes Desmond from 4:00 to 9:00 to swim 27 km. What is his speed?

How many stars, approximately, are in the solar system?

The ends of a magnet where the force is strongest are magnetic

Which statement is equivalent to newtons first law

Austin kicks a soccer ball with an initial velocity of 18.0 m/s at an angle of 35.0°. What are the horizontal and vertical components of the initial velocity? Round your answers to the nearest tenth.

Which equations are balanced? Check all that apply. Mg3N2 + H2O → 3MgO + 2NH3 C3H8 + 5O2 → 4H2O + 3CO2 Zn + 2HCl → ZnCl2 + H2 3Ca (OH) 2 + 2H3PO4 → Ca3 (PO4) 2 + 6H2O 3H2SO4 + 2Fe → Fe2 (SO4) 3 + H2 4Al + 3O2 → 2Al2O3