A 50n box is lifted 2 meters in 3 seconds.

a. how much work is done for the box?

b. is the work or positive?

c. how much power is needed to lift the box?

How does electric circuit wor

Juan wants to dilute a 5 molar solution of sulfuric acid down to a 1 molar solution. What would be the best way for him to do this? A. Add 400 mL of water to a beaker filled with 100 mL of sulfuric acid. B.

Describe some methods used to clean polluted water, including the use of biotechnology

Exercise should challenge your body and be at a greater intensity than your usual bif daily activity. Discuss

Gridlock occurs when: A. A car cuts into the gap in front of your car B. Traffic is required to travel by an alternate route C. Vehicles get stuck in the middle of an intersection

A skier is traveling down a slope that is inclined 30° above the horizontal. The coefficient of kinetic friction between the skier and the slope is 0.10. Which of the following best describes the acceleration of the skier? A) It is zero.

They are generally thought to be blank naturally occurring emotions that are present from birth

If an aircraft is loaded 90 pounds over maximum certificated gross weight and fuel (gasoline) is drained to bring the aircraft weight within limits, how much fuel should be drained?

3. Shortwave radio is broadcast between 3.50 and 29.7 MHz, To what range of wavelengths does this correspond? Why do you suppose this part of the spectrum is called shortwave radio?

How does a star's temperature change as the star ages from a main sequence star to a red giant and from a red giant to a white dwarf?