Why did it take so long to detect gravitational waves?

By simultaneously conserving energy and momentum, calculate the energy of the neutron emitted in the forward direction by a beam of 150 keV deuterons undergoing the D-T reaction in a tritium target.

A dense metal sphere is dropped from a 10-meter tower, and at the exact same time an identical metal sphere is thrown horizontally from the same height. If air friction is ignored, which statement below is true? A. Both spheres land at the same time.

What is the density of 25 grams

Healthy blood vessels do what more easily? open close or move

To prevent contamination laundered linens should be kept A. the closet B. In the locker room C. In the restroom D. Under an open stairwell

Mike walked 450 m west. He then turned and walked 150 m to the east in 300 seconds. what was his velocity?

Unpolarized light with intensity 300 W m2 is incident on three polarizers, P1, P2, and P3 numbered in the order light reaches the polarizers. The transmission axis of P1 and P2 make an angle of 45?.

Which of these is not an example of a physical change? a. a nail rusting b. a rock cracking c. blowing up a balloon d. stretching a piece of clay

The rate at which veloity changes over time is known as - Question options: A. speed B. acceleration C. Newton D. force

Scientific method definition