A vector has an x component of - 27.5 units and a y component of 43.0 units. find the magnitude and direction of this vector.

Block 1 and block 2 have the same mass, m, and are released from the top of two inclined planes of the same height making 30° and 60° angles with the horizontal direction, respectively.

A water pump pumps 3 kg of water every second from the bottom of a well to the top of the well 50 m above. If the pump uses 2000 W of electrical power to accomplish the task, what is the efficiency of the pump

which of the following refers to the motion of an object falling straight down with only the force of gravity acting on it

What kind of charge does an isotope have?

An electron is moving at 7.4 x 10^5 m/s perpendicular to a magnetic field. It experiences a force of - 2.0 x 10^-13 N. What is the magnetic field strength?

Determine the magnitude of the force p required to hold the 180-kg crate in equilibrium.

Match the following: 12) Site where resistance to blood flow is greatest. 13) Site where blood pressure is lowest. 14) Site where exchanges of food and gases are made. 15) Site where the blood pressure is greatest.

How many trees were sold in all during 1999 and 2000?

a cannon sits on a stationary railroad flatcar with a total mass of 1000 kg. when a 10 kg cannonball is fired to the left at a speed of 50 m/s, what is the speed of the flatcar

The breaking car had 10,000 J of kinetic energy before breaking after breaking it had 2000 J of kinetic energy. How much thermal energy did the brakes gain?