An object initially at rest experiences an acceleration of 9.8 m/s2. How much time will it take to achieve a velocity of 58 m/s?

A monkey is sitting at the top of a tree 20 m above ground level. A person standing on the ground wants to feed the monkey. He uses a bow and arrow to launch the food to the monkey.

How many moles of Cr are 156g of the element?

Which of the following describes the least amount of work being done? a batter hitting a baseball or wind turning a windmill or a ball hanging from a tall pole or steam turning a turbine

An automobile with a mass of 1232 kg accelerates at a rate of 2 m/s² in the forward direction. What is the net force acting on the automobile? N

Fluorine is the most reactive element in the halogen family

Consider the Sun and Earth as a single system. How does the law of conservation of energy apply to this system? A) The energy from the Sun that reaches Earth is destroyed by Earth.

Based on the law of conservation of energy, which statement is false Energy is lost when machines don't work right. We can't add more energy to the universe. We can't destroy energy that exists in the universe.

A 120-g rubber ball is thrown with a speed of 10 m/s at an oncoming 900-kg car which is approaching at 30 m/s, and undergoes a one-dimensional elastic collision with the car.

Name two index fossils. Why are these fossils important to the practice of relative aging?

The equation for water is h2 o2 → h2o. to balance the equation, which coefficient should be placed in front of h2 and h2o?