1. A carbon atom contains 6 protons and 6 electrons. In order for the carbon atom to become

Physics

1 answer:

jek_recluse [69]3 years ago

5 0

It must gain an electron because if the proton number was to change it would no longer be the same element.

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I drop a penny from the top of the tower at the front of Fort Collins High School and it takes 1.85 seconds to hit the ground. C

alex41 [277]

Assuming that air resistance is negligible you can use suvat.
you don't know the distance, the initial velocity is 0, the velocity at the point you are trying to work out is v, the acceleration is gravity (9.8ms^-2) and the time is 1.1s.
you use the equation v=u+at which gives v=0+(9.8x1.1)=10.78ms^-1

6 0

3 years ago

A wooden block of mass M resting on a frictionless, horizontal surface is attached to a rigid rod of length ℓ and of negligible

mr Goodwill [35]

Answer:

$mv l$

$\frac{M }{(M + m)}$

Explanation:

Complete question statement is as follows :

A wooden block of mass M resting on a friction less, horizontal surface is attached to a rigid rod of length ℓ and of negligible mass. The rod is pivoted at the other end. A bullet of mass m traveling parallel to the horizontal surface and perpendicular to the rod with speed v hits the block and becomes embedded in it.

(a) What is the angular momentum of the bullet–block system about a vertical axis through the pivot? (Use any variable or symbol stated above as necessary.)

(b) What fraction of the original kinetic energy of the bullet is converted into internal energy in the system during the collision? (Use any variable or symbol stated above as necessary.)

$m$ = mass of the bullet