A 20N force is directed to the right and a 14 Newton force is directed to the left and both act on a 3 kg mass. Starting from rest, how far does the object move in the first second

Alpha and beta particles and gamma rays are examples of: a. neutrons b. ionizing radiation c. isotopes d. atoms

Which best describes how heat energy moves within a system?

Current can flow only downhill in a water conduit because of:

A girl of mass 55 kg throws a ball of mass 0.80 kg against a wall. The ball strikes the wall horizontally with a speed of 25 m/s and it bounces back with this same speed. The ball is in contact with the wall 0.050 s.

Sean drew this diagram and labeled an unknown gas as gas A. Which gas does A represent?

A toy helicopter begins flying across a field with a speed of 3 m/s and an acceleration of 0.8 m/s2. How long does it take the helicopter to reach a speed of 7 m/s?

A 50.0 kg child stands at the rim of a merry-go-round of radius 1.50 m, rotating with an angular speed of 3.00 rad/s. (a) what is the child's centripetal acceleration? incorrect: your answer is incorrect.

Do all types of waves need a medium to travel through

What feature of the ocean basin is formed when old oceanic crust is forced under continental plates

Thermal energy from the Earth's core heats rock and creates magma. This hot magma then rises toward the Earth's surface, cools, and sinks back down toward the Earth's core. Which actions below occur during this process? (multiple answers) A.