If element x has 28'protons how many electirons does it have

A + 1.0 c charged object and a + 2.0 c charged object are separated by 100 m. where should a - 1.0x10-3 c charged object be placed on a line between the positively charged objects so that the net electrical force exerted on the negatively charged

An elements properties can be predicted from its

If a green ball has a greater momentum than an orange ball and both balls are moving at the same velocity, then A) the green ball has a greater mass B) the orange ball has a greater mass C) the mass of the balls is the same

Which of the following is part of a atom

Suppose you have an unknown clear substance immersed in water, and you wish to identify it by finding its index of refraction. You arrange to have a beam of light enter it at an angle of 45.7∘, and you observe the angle of refraction to be 30.5∘.

An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object? A. 2.2 m/s2 B. 1.7 m/s2 C. 16.83 m/s2 D. 1.3 m/s2

Where do deep currents flow?

If a car drove 121km/hr on average how far did it travel in 116min?

A 10 kg farm wagon is sitting at the top of a hill that makes a 370 angle with the horizontal when the brake suddenly fails. The cart rolls down the hill for 50 m and then hits a haystack. It plows 2.0 m into the stack before coming to rest.

What is a Geographic test