Which of the following can be a centripetal force? a.

friction

c.

tension

b.

gravity

d.

all of the above

A student slides down a slide at recess. After getting off the slide he goes to cross the monkey bars. As he touches the metal of the monkey bars, he gets a shock. How did the electric charge transfer from the slide to his body?

Why shouldn't technicians use oxygen or compressed air to pressurize appliances to check for leaks?

The kind of graph that would best show the results of a survey of 144 people where 75 ride a bus, 45 drive cars, 15 carpool, and 9 walk to work.

What is a Vector and a scalar?

How are speed and velocity different? Velocity tells you how fast and gives a direction. Speed only tells how fast. Speed is a vector and velocity is a scalar. Speed tells you how fast and gives a direction. Velocity only tells how fast.

Write the energy equivalent to 300 units of electrical energy in joules

Briefly describe why these searches suggest that star-like (our planet-like) objects and black holes cannot account for all the dark matter in the halo of our galaxy.

What two units of measurement are necessary for describing speed?

If 3,600 J of work is done in 3.0 s, what is the power? 0.00083 W 1,200 W 3,600 W 11,000 w

Julia rides her horse 12 miles in 45 minutes. What is her average speed in mi/min? Show Your Work.