How much force would be required to accelerate a 2kg object at a rate of 15m / sec?

A. 7.5 newtons

B. 13 newtons

C. 17 newtons

D. 30 newtons

A 66-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.90 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.

2. Harry was having a Quidditch meeting with the Gryffindor team and they were figuring out what would increase the acceleration of the quidditch ball in the next match.

To qualify for the indianapolis 500 race, a car must average 350 km/hr for four laps. if a driver averages 320 km/hr for the first two laps, what average speed must be achieved for the final two laps in order to qualify?

How many nanoseconds are in one hour? How do you write the following in scientific notation? 2,560,000m

Which explains how the ocean warms the air? A. The seawater absorbs heat from the sun and warms the air above it by convection. B. The seawater absorbs heat from the sun and warms the air above it by conduction. C.

A person of 83 kg is in an elevator. If the elevator is moving at a speed of 5 m/s, what's the person's kinetic energy? Keep 4 significant figures a 1,004 J b 1,038 c 1,280 J d 980 J e 1,435 J

What two equations can be used to determine the speed of a wave

Which force has an infinite range and is always attractive?

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp

Sodium, atomic number 11, forms an ionic bond with an atom of an unknown element. What is one possible choice for the ther element in the compound?