A skier with a weight of 700 N glides along a flat, horizontal surface at the bottom of a hill. Her acceleration is -2.0 m/s2 What is the magnitude of the total force acting on the skier due to friction and air resistance?
A. 70 N
B. 140 N
C. 350 N
D. 1400 N

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion