You drop a rock off of a building. It takes 4.5s to hit the ground. How tall is the building?

How much force is needed to accelerate an object of mass 90kg at a rate of 1.2 m/s2

A loop of wire is placed in a perpendicular magnetic field. Suddenly, the magnitude of the magnetic field begins to increase, what is the direction of the induced current in the loop

An elevator and the people inside have a combined mass of 980 kg in a building where each floor is 3.6 m apart. If the elevator's power rating is 55 kW how long does it take for a trip from the 4th floor to the 8th?

Is the heat you feel when you put your hands above fire Conduction convection or Radiation

Which is a use of fiber optics?

When you are ice skating, to get started, you push your skate backwards on the ice and, as a result, begin to move forward. Which law of motion is being described in this scenario?

A small car collides with a large truck. Is the magnitude of the force experienced by the car greater than, less than, or equal to the magnitude of the force experienced by the truck? a. less than b. equal to c. greater than

As an airplane is taking off at an airport its position is closely monitored by radar. The following three positions are measured with their corresponding times: x1 = 241.22 m at t1 = 3.70 s, x2 = 297.60 m at t2 = 4.20 s, x3 = 360.23 m at t3 = 4.

A stunt car with a mass of 1000 kg crashes into a tree on a movie set during the collision acceleration of the car with 3 m what was the force of impact of the collision on the car

A circuit with a current of 400 amp has several lights that have a total resistance equal to 30 ohms. Find the voltage.