Elements with atomic numbers 58 through 71 are part of what series?

1. What is the the difference between reactants and products of a chemical equation. 2. What does the law of conservation of mass state?

When punishment is applied after every instance of an unwanted target behavior, it is generally more effective

Ignoring air resistance, if you throw a baseball from first base upwards toward a friend in left field, and the baseball leaves your hand at a speed of 15 meters per second, how fast will the ball be going when your friend catches it?

Which of the following musical instruments has the greatest inertia? A. a saxophone B. a piano C. a flute D. a guitar

You throw a rock upwards; it rises and then falls back down. We know that the acceleration due to gravity is 9.8 m/sec2 near the surface of earth.

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

What do we call it when an object exerts force on another for a short period of time? * Momentum Work Impulse Friction

The strength of the electric field 0.5 m from a 6 µC charge is positive N/C. (Use k = 8.99 * 109 N• and round answer to the nearest whole number.)

Which of the following equations correctly expresses the relation between vectors A⃗, B⃗, C⃗, and D⃗ shown in the figure?

Oliver, whose mass is 65 kg, and Olivia, whose mass is 45 kg, sit 2.0 m apart in the physics classroom. What is the force of gravitational attraction between Oliver and Olivia