Two atoms that are isotopes of one another must have a different number of what?

electrons

neutrons

protons

all particles

94. The best predictor of outcome of rehabilitation for a traumatic brain injured client is. 2 The post-injury IQ b. The location of the injury within the brain C. The length of the coma d Family support

1. You wish to heat 20 kg of water from 40°C to 80°C. How many kcal of heat are necessary to do this? To how many kJ does this correspond?

What magnitude of force does a ball of mass 0.75 kilograms need to be hit so that it accelerates at the rate of 25 meters / second^2

Three rocks of equal mass are thrown with identical speeds from the top of the same building (identical height). Rock X is thrown vertically downward, rock Y is thrown vertically upward, and rock Z is thrown horizontally.

A box 5 m long, 2 m wide, and 2 m high applies 12 Pa of pressure to the table that it is resting on. How much force does the box exert?

What type of wave is sound? longitudinal light surface transversal

What is the difference between meteors and meteorites?

The puzzle box is traditionally associated with the work of

A 0.95-kg sample of water at 11°C is in a calorimeter. You drop a piece of steel with a mass of 0.39 kg at 212°C into it.

Let the magnitudes of two displacement vectors be 4 m and 8 m, respectively. If the two vectors are added, the magnitude of the resultant vector. A. is exactly equal to 4 m. B. is exactly equal to 12 m. C. is greater than 12 m. D.