Which best describes a reference frame?

A. a distance over which an object moves

B. the difference between start and end velocity

C. a position from which something is observed

D. the average speed of a group of objects

Calculate the momentum for a 0:2 kg rifle bullet traveling 300m/a

The term amplitude refers to which of the following? A. the top part of a wave B. the lowest part of a wave C. the distance from the top of one wave to the top of the next wave D. the distance from the rest position of a wave to the top of the wave

A car tire contains 0.0320 m3 of air at a pressure of 2.35 ✕ 105 N/m2 (about 34 psi). How much more internal energy (in J) does this gas have than the same volume has at zero gauge pressure (which is equivalent to normal atmospheric pressure) ?

How much sooner does the box reach the bottom of the incline than the disk? express your answer in terms of some or all of the variables m, h, θ, and r, as well as the acceleration due to gravity g. view available hint (s) ?

The thickness of a $1 bill is 0.11 mm. If you have a stack of $1 bills 450 m tall, how much money do you have?

Which best states the author's argument in catching sun rays? no power source is clean, free, and renewable. it costs too much to use solar energy for power. the use of solar energy can cause blackouts in big cities.

A possible means of space flight is to place a perfectly reflectingaluminized sheet into orbit around the Earth and then use the lightfrom the Sun to push this "solar sail." Suppose a sail of area5.

An electric circuit consists of a variable resistor connected to a source of constant potential difference. If the resistance of the resistor is doubled, then

What would happen if an electron was added to an atom

Is a stick living, non living or Dead?