Calculate the spring constant if a weight of 250N is added to a spring which increases in length by 20cm

In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor. Suppose the victim falls by 0.

Which of the following is a dimensioning guideline? A. Use the least number of dimensions needed. B. Always dimension hidden lines. C. Put dimensions inside of objects. D. Line dimension numbers up in a row.

How much time would it take for the sound of thunder to travel 1500 meters if sound travels at a speed of 330 m/s

A 3.7 kg block is pushed along a horizontal floor by a force modifyingabove upper f with right-arrow of magnitude 25 n at a downward angle θ = 40°. the coefficient of kinetic friction between the block and the floor is 0.26.

Fluid pressure changes with depth are assumed to be linear. Which statement best explains why this does not hold true for atmospheric pressure changes?

Where would you weigh the most? Mars Pluto Earth The Sun The moon

A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage to 425 kV.

Match the example to the type of equipment category it fits best in. A Gym bag, workout clothes, hygiene essentials, proper shoes, water, ipod. B Hockey Stick Baseball Glove. Basketball. Pads. Helmet.

Energy transformations in a bouncy house

High voltage power is often carried in wire bundles made up of individual strands. In your initial post to the discussion, discuss the forces on the strands of wire due to the current flowing through them.