Technician A says that horsepower is defined as work per unit of time or the rate of doing work. Technician B says that one horsepower equals 550 foot-pounds per seconds. Who is right?

A. Neither A nor B

B. B only

C. Both A and B

D. A only

If you do not recall the exact date of an event, it is okay to use a general time reference instead. true or false

The phosphorus cycle does not have an atmospheric stage. False True

What Plate Boundry on Jupiters moon Europa causes the ice to melt on the planet

Each action you might take in reaching your goal has risks or costs. True False

Congress decreases personal income taxes. Which determinant of aggregate demand causes the change? Price Consumer spending Investment spending Government spending Net exports Productivity O Resource cost O Government intervention (taxes, subsidies,

4. You should expect each child's development to be O A. exactly the same as for the other children in your setting B. different, including meeting milestones a little early or late, and not progressing in each domain at the same time. C.

Without heat from the Sun, the water cycle would

Which instrument sends back radio signals to Earth about temperature at various heights in the atmosphere? A. weather balloon B. radar C. sunscope D. barometer

Why is Splitting a thick log so hard?

If a person's body has a density of 995 kg/m³, what fraction of the body will be submerged when floating gently in (a) freshwater? (b) In salt water with a density of 1027 kg/m³?