Emily's vacuum has a power rating of 200w if the vacuum cleaner does 360000j of work how long did Emily spend vacuuming

The air is less dense at higher elevations, so skydivers reach a high terminal speed. The highest recorded speed for a skydiver was achieved in a jump from a height of 39,000 m. At this elevation, the density of the air is only 4.

A dense mix of dry, hot rock fragments and hot gas erupting from volcanic vents at high speed is

Where did the asteroids in the asteroid belt come from?

When 450-nm light is incident normally on a certain double-slit system the number of interference maxima within the central diffraction maximum is 5. When 900-nm light is incident on the same slit system the number is: a. 9b. 2c. 3d. 10e. 5

onsider the electric potential (in Volts) given: V (x comma y comma z) equals negative 2.00 x y plus 3.00 x cubed y squared Calculate the y component of the electric field (in V/m) at x = 4.17 and y = 4.26

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force (in N) exerted on a 0.0500 kg bullet to accelerate it to a speed of 625 m/s in a time of 1.10 ms (milliseconds)

Your boss at the Cut-Rate Cuckoo Clock Company wants to save money on materials. You are asked to reduce the balance wheel, which is cylindrical, dimensions to one-third their original values.

Which of the following conditions is not necessary to observe an interference pattern between two sets of waves? A) The waves must have the same wavelength. B) The waves must have a constant phase difference.

Calculate the change in velocity of 70 kg object being pulled with 1000N force force 10 s

Which reaction obeys the law of conservation of mass?