How does the mass of an object change when it acquires a positive charge?

A jogger accelerates from rest to 3.0 m/s in 2.0 s. A car accelerates from 38.0 to 41.0 m/s also in 2.0 s. (a) Find the acceleration (magnitude only) of the jogger, (b) Determine the acceleration (magnitude only) of the car.

What is your body's metabolic power use while running the generator to power your laptop charger, given the typical efficiency for such tasks? Assume 100% efficiency for the generator.

How is weight related to force?

For the chemical reaction C2H6 - - > C2H4 + H2 + 137kJ, the chemical energy of the A. reactant and the chemical energy of the products are equal. B. reaction cannot be calculated. C. reactant is greater than the chemical energy of the products. D.

Who has the greater acceleration rate? A runner who can go from 0 m/s to 12 m/s in 10 seconds, or a runner who can go from 5 m/s to 10 m/s in 5 seconds?

If the speed of an object decreases to one-half, what happens to its momentum? It doubles It remains the same It decreases to one half It decreases to one fourth

If a reaction has a rate constant of 3.7 x 10-3 s-1 at 25oC, and an activation energy of 43.6 kJ/mol, what will be the rate constant for this reaction at 75oC?

Two sounds are played for you. The first has a frequency of 196 Hz. The second has a frequency of 392 Hz. Which sound will be "higher" to your ear? A) The First B) The Second C) They will sound the same

When is an object that has been dropped from a great height through the air closest to vein in a free fall? At it's terminal velocity < - - this one?

A 0.300-kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200-kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200-kg puck has a speed of 1.00 m/s at an angle of? = 52.0