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Questions in physics

[Free] Which best defines the relationship between speed and velocity? A. Speed is velocity with displacement. B. Velocity is speed with displacement. C. Speed is based on a specific direction. D. Velocity is based on distance.

[Free] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Free] A swimmer can swim 1000 m in 360 seconds. What is her average speed in [tex]$m / s$[/tex]?

[Free] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Free] How does the mass of an object affect its speed? A. Surface the object is moving on B. Object's speed C. Mass of object

[Free] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Free] Which of the following best describes potential energy? A. the energy of sound waves B. the energy of motion C. energy from the sun D. stored energy or energy that has the ability to do work because of its position

[Free] Players on the line with lighter (faster to accelerate) loaded versus an unloaded truck. As the water flows over the edge ledge of the rocks, gravity, which exerts a force on it, causes it to accelerate downwards. The water moves downwards the longer it falls. When the girl throws the ball, she is applying a force to it and accelerating it. As soon as she lets go, the net force, which also applies a force, accelerates the ball downward. A baseball player applies a force to a baseball, accelerating it to high velocity. If the ball had more mass, that same force, would not accelerate the ball to such a high velocity.

[Free] For a person who has a mass of 60 kg, calculate the weight in newtons and in pounds. An object of mass 10 kg is accelerated upward at 2 m/s². What force is required?

[Free] What energy is the energy flow between the Solar panel and the windmill? A. Chemical B. Light C. Nuclear D. Electrical