The isotope 23893Np has a half-life of 2.0 days. If 4.00 grams are produced at noon on Monday, what will be the mass of neptunium remaining at noon on Tuesday of the following week?

A baseball player swings at a baseball of m = 0.23 kg. The force exerted on the ball by the bat is 5.0 N forward. What is the force of the ball on the bat? 22 N backwards 22 N forwards 5 N forwards 5 N backwards

Which of the following is the most accurate description of the relationship between velocity and acceleration? A. Velocity and acceleration are the same thing. B. Velocity is a type of acceleration. C. Acceleration is a change in velocity. D.

In a scientific experiment, the_ changes in response to another change. O O A. hypothesis B. conclusion O O O C. dependent variable O D. independent variable

A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 35 C from 175 C, its net radiant power decreases to 12.0 W.

With all his gear on Neil Armstrong weighed 370pounds on earth when he landed on the moon he weighed 60 pounds why?

Which vocabulary term is survival of the fittest

An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/s2?

At what stage of a reaction do atoms have the highest energy? a. reactant stage b. product stage c. transition state stage d. The stage of highest energy depends on the atom.

A moon with a mass of 6.0 x 10 kg orbits about a planet with a mass of 5.0x 10^24 kg. They are 4.0 x 10^8 meters apart What is the gravitational force between them? The answer is 1.

What is the expression of the chemical composition of a compound?