Walking converts what type of energy into mechanical energy? A) chemical B) electromagnetic C) nuclear D) thermal

Explain what is happening to an object that has an acceleration of 2ms-2

Select the correct answer. Which law represents a balanced chemical equation? a. Avogadro's hypothesis b. ideal gas law c. law of conservation of mass d. Newton's first law of motion e. Newton's second law of motion

A spaceship moving through deep space will continue moving at the same speed forever. What is the name of the property that allows this to happen? A. Force B. Normal force C. Mass D. Inertia

What will happen to the hydronium ion concentration and pH of the water if hydrochloric acid is added to water?

A plane has a takeoff speed of 88.3m/s and requires 1365m to reach that speed. determine the acceleration of the plane and the time required to reach this speed.

A 100 kg train traveling at 20 m/s crashes into a stationary 400 kg car. After the collision the car and the train are stuck together. What is their velocity.

How your weight would change with time if you were on a space ship traveling away from, earth toward the moon

A heavy planet and a light planet are found to have the same momentum. What do we know about their speed? A. The light object is slower B. The heavy object is slower C. They have the same speed

Solar cells are used to a. photograph sunspots. b. convert sunlight into electricity. c. convert sunlight and carbon dioxide into sugars. d. convert electricity into solar energy.

What scientific evidence supports the Big Bang theory? Universe expansion Redshift Composition of the universe All of the above None of the above