How much work would be required to lift a 12.0 kg mass up onto a table 1.15 meters high

The velocity of sound in air saturated with water vapour at 30°C is 340 m/s. If the atmospheric pressure is 65cm of mercury and saturated vapour pressure of water at 30°C is 31.7 mm of mercury. Calculate the velocity of sound in dry air at 0°C.

2. Calculate the work done by a 57 N force pushing a 0.025 kg pencil 0.25 m against a force of 23 N.

What happen on 7th February 1985

Greg walks on a straight road from his home to a convenience store 3.0 km away with a speed of 6.0 km/h. On reaching the store he finds that the store is closed, he instantly turns around and walks back with a speed of 9.0 km/h.

Which is an example of sliding friction? A. a car's wheels rolling down the road B. a bird flying through the air C. a child applying the brakes on his bike D. a bowling ball rolling down a lane

A motorist enters a freeway at 45 km/h and accelerates uniformly to 99 km/h. From the odometer in the car, the motorist knows that she traveled 0.2 km while accelerating.

What is the Coriolis Force?

Einstein's general theory of relativity made or allowed us to make predictions about the outcome of several experiments that had not yet been carried out at the time the theory was first published.

What factors that affect friction?

Is the furnace an internal or external combustion engine