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 Which of the following is a controlled substance?

Which of the following antibiotics are used topically?

The figure above shows the sun at noon as seen from Mission College. Where is the sun on the Winter Solstice?

Why are astronauts weightless in the Space Station?                                                                                               

A young girl wishes to select on of the frictionless playground slides illustrated below to give her the greatest possible speed when she reaches the bottom of the slide. Which of the slides illustrated in the diagram above should she choose?

A block of mass 15 kg accelerates from rest to a speed of 10 m/s in 5.0 s. What is the magnitude of the net force acting on the block?

A pendulum is swinging back and forth and has a kinetic energy of 400 J at a particular point in its path. Which of the following statements is not true?

A crate is pulled a distance of 15 meters by a horizontal rope with a force of 240 N while a sliding friction force of 60 N opposes that motion. What is the total work done on the crate over this distance?

A body falls through the atmosphere (ignore air resistance) gaining 20 J of kinetic energy. How much gravitational potential energy does it lose?

Increasing the speed of an object _________ its potential energy.