Which of the following is an element?

A. Water

B. Carbon Dioxide

C. Oxygen

D. Ammonia

A boy pushes forward a cart of gravesites with a total mass of 40.0 kg. What is the acceleration of the cart if the net force on the cart is 60.0 N?

Which type of marcomolecule is made of amino acids?

Human blood has a density of approximately 1.05*10'3 kg/m'3. Use this to estimate the difference in blood pressure between the brain and the feet in a person who is approximately 1.05 * 10'3.

Which team is incorrectly matched with its home city? Eagles-Philadelphia Dolphins-Miami Steelers-Phoenix Cowboys-Dallas

What is the resistance of a circuit with a voltage of 10 bolts (v) and a current of 5 amps (a) ?

Which of the following factors determines the strength of the frictional force between two surfaces? The amount of heat generated by the frictional The types of surfaces involved The objects' sizes How hard the surfaces push together

A work crew is using a pulley to lift a small piano up the outside of a building to a second-floor balcony. The piano has mass 180 kg. At a height of 3.0 m, what is the piano's gravitational potential energy with respect to the ground? A. 9.8 J B.

Would the weight density of water be different on the moon than it is on earth?

What is a newton? a. the time it takes to move 1 kilogram b. the force it takes to change the speed of 1 kilogram by 1 m/s in 1 second c. the speed it takes to move 1 kilogram mass in one hour

An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 minutes 20 s?