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?

What followed the discovery of seafloor spreading?

A uniform magnetic field is perpendicular to the plane of a circular loop of diameter 8.4 cm formed from wire of diameter 3.3 mm and resistivity of 2.14 * 10-8Ω·m.

The process of making alloys involves (Cooling, Heating or mixing) pure metals to remove impurities. Then the pure metals are (broken down, cooled, mixed) with other components.

a fission reaction possible is that certain atoms are

The products of one turn of dark reaction cycle are called

Write the energy equivalent to 300 units of electrical energy in joules

Briefly describe why these searches suggest that star-like (our planet-like) objects and black holes cannot account for all the dark matter in the halo of our galaxy.

What two units of measurement are necessary for describing speed?

If 3,600 J of work is done in 3.0 s, what is the power? 0.00083 W 1,200 W 3,600 W 11,000 w

Julia rides her horse 12 miles in 45 minutes. What is her average speed in mi/min? Show Your Work.