A1-horsepower, 24-volt dc electric motor that is 80 percent efficient requires 932.5 watts. how much power will a 1-horsepower, 12-volt dc electric motor that is 75 percent efficient require?

A 1 horsepower motor with 75% effiency will require 994. 26 watt

Explanation:

To calculate the effiency, 1 horsepower is equivalent to 745.7 watts

1hp= 745.7 w

So, by using a rule of three the calculation its like this:

745.7  ⇒  100%

X        ⇒  75%

The information about the volts in this example is not required, but it can be used to calculate the current.

the answer is b ) square root of 5

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.