If the ball hits olaf and bounces off his chest horizontally at 8.50 m/s in the opposite direction, what is his speed vf after the collision? express your answer numerically in meters per second.

A car slows down from 23 m/s to rest in a distance of 85m. what was its acceleration, assumed constant?

If the earth takes 24hours to rotate about it's axis, calculate the mean angular speed of the earth

A 6.0 mw vertically polarized laser beam passes through a polarizing filter whose axis is 75° from vertical. What is the laser-beam power after passing through the filter?

What is the mass number of an atom with 3 protons, 4 neutrons, and 3 electrons

Why do atoms form bonds? A. to decrease the number of electron shells in an atom B. to increase the number of electrons orbiting the nucleus C. to transfer electron shells between atoms D. to create a completely full outer shell of electrons

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started

The elements with the largest atomic radii are found in the

Students will explain, distinguish the difference between the 4 states of matter