During a race, Rachel runs at a speed of 6 m/s. Four seconds later, she is running at a speed of 10 m/s. What is Rachels acceleration?

Which of the following describes the magnetic field produced by a current carrying wire? Assume the wire is normal to the page, and that current is flowing into the page. A.) The magnetic field is directly into the page. B.

An object with 274 J of GPE is 140cm above the ground. What is its mass?

Describe the path of an electrical impulse as it moves through a neuron

The electric motor in a toy train requires a voltage of 4.9 v. find the ratio of turns on the primary coil to turns on the secondary coil in a transformer that will step the 110 v household voltage down to 4.9 v.

Oceanic electric fields produce electric currents. True False

You raise a 1200-N piano a distance of 5.00 m using a set of pulleys. You pull in 20 m of rope while exerting a force of 340 N.

Ina shoots a large marble (Marble A, mass: 0.08 kg) at a smaller marble (Marble B, mass: 0.05 kg) that is sitting still. Marble A was initially moving at a velocity of 0.5 m/s, but after the collision it has a velocity of - 0.1 m/s.

The elements that touch the zigzag line ar classified as

The half-life for a 100-gram sample of radioactive element X is 5 days. How much of element X remains after 10 days have passed? A. 25 g B. 100 g C. 75 g D. 50 g

During a transit, a passes in front of its parent star, temporarily decreasing the star's brightness by a small amount.