The sum of the protons and neutrons in an atom equals the

a. atomic number.

b. number of electrons.

c. atomic mass.

d. mass number.

A bird-watcher is hoping to add the white-throated sparrow to her "life list" of species. How far could she be from the bird described in example 14-8 and still be able to hear it? Assume no reflections or absorption of the sparrow's sound.

What information do you need to describe an object location

Acceleration is defined as the rate of change go which of the following 1. Velocity 2. Time 3. Displacement 4. Position

Determine the amount of time for polonium-210 to decay to one fourth its original quantity. The half-life of polonium-210 is 138 days. Explain.

The speed of a transverse wave in a string is 15.0 m/s if a source provides a disturbance that has a frequency of 6.00Hz what is its wavelength?

When considering different hypothesis usually the scientific explanation which can account for all the is

Similarities between mechanical and electromagnetic waves are

Suppose you're given the formula r = s 2t. if you know that s is three times greater than t, how could you rewrite the formula

A merry-go-round rotates with a centripetal acceleration of 15 m/s2. If the outer horses are 7 m from the center of the ride, what is their velocity? O A. 11.8 m/s O B. 10.2 m/s O O C. 9.6 m/s D. 8.4 m/s

Which is not a part of the walking mechanism of the human body? a rigid bar a fulcrum a resistance a gear