Suppose you are holding a basketball while standing still on a skateboard. You and the skateboard have a mass of 50kg. You throw the basketball with a force of 10N. What is your acceleration before and after you throw the ball?

Consider two copper wires with the same cross-sectional area. Wire a is twice as long as wire b. How do the resistivities and resistances of the two wires compare?

A squirrel has x-and y-coordinates (1.1 m, 3.4 m) at time t1 = 0 and coordinates (5.3 m, - 0.5 m) at time t2 = 3.0 s. for this time interval, find (a) the components of the average velocity

A copper water tank of mass 20kg contains 150 kg

What does parris tell Abigail he saw in the woods?

A 1.5m wire carries a 2 A current when a potential difference of 88 V is applied. What is the resistance of the wire?

Which of the following describes the products of a chemical reaction? A. The original materials B. The chemicals on the right side of a chemical equation C. The chemicals on the left side of a chemical equation D. The substances that are changed

What does it mean when we say an atom has decayed?

The first excited state of a particular atom in a gas is 5.2 eV above the ground state. A moving electron collides with one of these atoms, and excites the atom to its first excited state.

How do your teeth work as a wedge?

According to the Big Bang theory timeline, all matter and energy was compressed into a very small volume at an extremely high temperature. a. True b. False