How many neutrons are contained in 2 kg? Mass of one neutron is 1.67x10-27 kg.

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force exerted on a 0.0300-kg bullet to accelerate it to a speed of 600 m/s in a time of 2.00 ms (milliseconds) ?

A positive charge, q1, of 5 µC is 3 * 10-2 m west of a positive charge, q2, of 2 µC. What is the magnitude and direction of the electrical force, Fe, applied by q1 on q2?

One thousand grams of seawater would consist of how many grams of dissolved substances? 65 635 35 965

Is copper wire a homogeneous mixture

Kaylie is describing the physical properties of an orange and a lemon. which two physical properties can she determine without using any measurement instruments

Describe the relationship between force and mass when the acceleration of two objects remain constant

It is epistemically possible that a completed physics might include which of the following propositions? O Souls and other spiritual substances exist O God created the universe O Matter is unreal O All of the above

The weight of an object varies inversely with the second power of the distance from the center of Earth. The radius of Earth is approximately 4000 miles.

The chemical reaction of oxygen with other substances is called A. erosion. B. oxidation. C. exfoliation. D. acidification.

Find the net charge of a system consisting of 6.16*106 electrons and 7.68*106 protons. Express your answer using three significant figures. Qnet = 2.43*10-13 C