What shape is the Milky way galaxy

Explain reflection and refraction

Dave throws a tennis ball straight up into the air he throws the ball with mass of 0.07 kg A speed of 28 m/s and there is no air resistance how high does the ball A speed of 28 m/s and there's no air resistance how high does the ball go

If you change a single base in a codon then 1. the codon could code for nucleic acids instead of amino acids 2. the codon could code for a different amino acid 3. the dna strand containing the codon could fall apart 4.

1. The gravitational force acting on a falling body and its weight is constant. But the law of universal gravitation tells us that the gravitational force on a body increases as it gets closer to Earth's center. Is there a contradiction here?

Several 4-conductor cables are installed in a ladder cable tray without a cover and without exceeding the cable tray fill limit. Each 4-conductor cable comprises four 1/0 AWG THHN copper conductors, each of which is considered current-carrying.

If a wave were to hit a flexible, moveable surface what will it do?

How powerful is 4kj?

A series of steps that allows someone to conduct an experiment are called a

A coach is hitting pop flies to the outfielders. if the baseball (m = 145 g) stays in contact with the bat for 0.04 s and leaves the bat with a speed of 50 m/s, what is the average force acting on the ball?

The two major ways to transfer charge between two objects are