The crate has a mass of 10 kg and is being pulled by the force as shown on a smooth surface. if initially the crate has a velocity of 15 m/s to the left, what is its velocity after 2 seconds?

A hummingbird is hovering motionless beside a flower. The blur of its wings shows that they are rapidly beating up and down. If the air pushes upward on the bird with a force of 0.

A car is traveling at the posted speed limit of 6.70 m/s (15 miles/h) in a school zone. The car passing a school bus when a child darts out from in front of the bus. The car is 10.0 m from the child when the driver of the car applies the brakes.

The force needed to accelerate a stationary 2000 racing car to a speed of 144 km/h in a distance of 80 meters

While keeping your food cold, your refrigerator transfers energy from the inside to the surroundings. thus thermal energy goes from a colder object to a warmer one. part a what can you say about this?

Which of the following properties could be described as a force that pushes charges along? A) charge B) current C) voltage D) resistance

A coat rack weighs 65.0 lbs when it is filled with winter coats and 40.0 lbs when it is empty. The base of the coat rack has an area of 452.4 in2.

An initially stationary object experiences an acceleration of 6 m/s2 for a time of 15 s. How far will it travel during that time?

How was helium first discovered? mining of the radioactive element uranium using spectral analysis of the Suns' emission spectra o hubble obtaining samples from explosions off the surface of the sun deep sea mining off the coast of Texas

If you get something in your eyes in the lab, what is the most important thing to do?

In the physics of motion a force acting over a distance is?