What is the resultant of a and B if a = - 2i - 5j and B = I - 4j

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?