Question 2: The number of protons plus the number of neutrons in an atom is equal to its

A. atomic number

B. mass number

C. nuclear model

D. energy level

5. A family of ducks is swimming in a pond at a speed of 3 m/s when a gust of wind hits them. By the time they reach the other side of the lack, the ducks are moving at a speed of 7 m/s.

When a force of 16 N acts on a body of mass 8kg, the body will accelerate at?

A baseball goes from zero to 39 m/s in 0.917s. what is its average acceleration?

Suppose you increase your walking speed from 6 m/s to 14 m/s in a period of 3 s. What is the acceleration?

How many joules of energy are required to accelerate a 1.0-kg mass from rest to a speed of 86.6% the speed of light?

In a laboratory, you determine that the density of a certain solid is 5.23*10-6kg/mm3. Convert this density into kilograms per cubic meters.

List the solar objects in correct order from the Sun. Venus Earth Mercury Saturn Neptune Mars Jupiter Asteroid Belt The Sun Uranus

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. The area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?

How can you tell one element from another?

Which of the following is not an accurate statement about the attitude of teenagers when driving