400JA container with a mass of 5 kg is lifted to a height of 8 m. How much work is done by the gravitational force?
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400 J

Explanation:

From the question given above, the following data were obtained:

Mass (m) = 5 kg

Height (h) = 8 m

Workdone (Wd) =?

Workdone by gravitational force is given by the following equation:

Wd = mgh

Where:

Wd => is the Workdone.

m => is the mass of object

g => is the acceleration due to gravity

h => is the height to which the object is located.

With the above formula, we can obtain the workdone as follow:

Mass (m) = 5 kg

Height (h) = 8 m

Acceleration due to gravity (g) = 10 m/s²

Workdone (Wd) =?

Wd = mgh

Wd = 5 × 10 × 8

Wd = 400 J

Thus, the workdone by gravitational force is 400 J

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

radiation

explanation:

heat is transmitted by radiation