A car travels 70 km in two hours 104 km in the next 1.5 hours and then 79 km in two hours before reaching its destination what was the cars average speed?

A Canadian driving from Quebec to Montreal finds he has traveled 271 km. How many miles is this? There are 1.61 km in 1 mi

A car accelerates from rest to a speed 20 m/s in 12 s. Find the distance the car travels this time

A machine is supplied energy at a rate of 4000 watts and does useful work at a rate of 3761 watts what is the efficiency of the machine

HURRY! Which lists the correct steps that occur when using a diffraction grating to bend light? diffracted wavelengths reach the eyes → different wavelengths of light bend at different angles → the eyes see different colors → light strikes the

How much heat is needed to raise the temperature of 100.0 g of water by 50.0°C? (Water's specific heat is 4.18 J/g•°C)

When a fork is placed in a hot piece of lasagna, thermal energy is transferred up the fork by ...

Levi observed properties of four different waves and recorded observations about each one in his chart.

A rocket is shot straight up from the earth, with a net acceleration (acceleration by the rocket engine minus gravitational pullback) of during the initial stage of flight until the engine cut out at sec.

Which moon has a thick atmosphere made mostly of nitrogen?

J. J Thompson proposed that atoms were made up of positively charged particles with electrons scattered into them. How did he reach this conclusion?