Tommy was walking at a rate of 4 miles/hour at noon and at 12:30 pm he was walking at a brisk rate of 6 miles/hour. Two hours later Tommy was walking at a leisurely rate of 2 miles/hour. Which statement about Tommy's accleration is true?

What must a plant need to produce 4 molecules of sugar?

Two tiny metal spheres A and B, mass mA $ 5.00 g and mB $ 10.0 g, have equal positive charge q $ 5.00 mC. The spheres are connected by a massless nonconducting string of length d $ 1.00 m, which is much greater than the radii of the spheres.

Which two concepts explain how the body moves? force and leverage agility and leverage force and balance agility and balance

We see a full moon by reflected sunlight. how much earlier did the light that enters our eye leave the sun

What is the ultimate source of electromagnetic waves? A. Vibrating atoms B. Vibrating molecules C. Radio sets D. Vibrating charged particles E. TV antennas

Thomsonâs experiment is credited with the discovery of which particle?

When you drop a pebble from height h, it reaches the ground with kinetic energy k if there is no air resistance. from what height should you drop it so it will reach the ground with twice as much kinetic energy?

Explain two ways that technology has had a positive impact on the environment and two ways that it has had a negative impact on the environment.

A rockets initially at rest, it steady gains speed at a rate of 10m/s^2 for 4.6s during take off. What was the rocket's top speed?

What do you mean by kintic theory of matter