Which of the following are comprised of proteins?

Select one or more:

a. hair

b. nails

c. muscle

d. bone

The electrostatic attraction that binds oppositely charged ions together is called

If a golf ball and a bowling ball are moving and both have the same genetic energy if they move at the same speed which one has more kinetic energy

An electric sign is supported by a wire making a 45 degree angle

How many amps of current are there in a system with 12 volts and 6 ohms? A. 0.5 amps B. 2 amps C. 18 amps D. 72 amps

Johannes Kepler discovered the laws that bear his name by analyzing the observational data of which astronomer? a. Tycho Brahe b. Galileo Galilei c. Sir Isaac Newton d. Nicolaus Copernicus

A 10.0 V battery is connected to a 120-ohm resistor. Ignoring the internal resistance of the battery Calculate the power delivered to the resistor.

Hemoglobin (Hb) is the O2-carrying protein in our blood. Unlike myoglobin, it has four sites allowing it to bind up to four O2 molecules.

Why does the moon appear to change shape? A: It rotates and makes it own light B: It moves closer and farther away from the earth in a yearly pattern. C: It reflects sunlight as it revolves around the earth.

An object's weight is equal to its buoyant force in water. What would you expect to happen when the object is placed in water? Explain your reasoning.

What is the name of the german scientist that proposed the theory of continental drift