What is the unit of strain

a father has brown hair (B), but the offspring have red hair (a recessive trait), like their mother (b). How is this possible?

Explain how a step-down transformer makes electricity safe for use in homes.

When the end of earth's axis is tilted toward the sun, what season will we exprience in north america?

A nebula is a concentrated area of gas and dust. How does this relate to the formation of stars within galaxies?

The total volume of hydrogen gas needed to fill the hindenburg was 2.09 * 108 l at 1.00 atm and 25.1° c. how much energy was evolved when it burned?

In the chemical reaction in which carbon, hydrogen and oxygen absorb heat and combine to form carbon dioxide and water which of the following is considered to be a reactant? A. heat B. water C. oxygen D. carbon dioxide

A box is at rest on a table. What can you say about the forces acting on the box? The upward ___ and the downward___ are balanced Applied force Frictional force Normal force Drag force Gravitational force Tension

When the sun warms the sidewalk on a hot sunny day, what type of energy conversion occurs?

Which statements about acceleration are true? Check all that apply. A. is the symbol used for acceleration. B. The SI units for acceleration are m/s. C. Acceleration is a scalar quantity. D. Acceleration is calculated with the equation.

What is the acceleration due to gravity on Mars? a. 9.8 m/s2 c. 12.2 m/s 2 b. 3.7 m/s2 d. 0.3 m/s2