Answer: There is not work done at the door because the door did not move.
Explanation: Work is defined as the movement done by a force.
So if you move to apply a force F in an object and you move it a distance D, the work applied on the object is
W = F*D
In this case, the secret agent pushes against the door, so there is a force, but the agent does not move the door, so D = 0, so there is no motion of the door, which implies that there is no work done at the door.
Answer:
Use the drop-down menus to complete the statements.
All protists live in environments that are
✔ wet
.
All protists must
✔ reproduce
.
All protists have
✔ a nucleus
.
All protists make or consume
✔ food
Explanation:
I got it right hope its the right one
The force of the air resistance is 4 N.
The given parameters;
- mass of the flower pot, m = 2 kg
- weight of the flower pot, W = 20 N
Let the air resistance = F
Apply Newton's second law of motion to determine the force of the air resistance acting upward to oppose the motion of the pot falling downwards.

Thus, the force of the air resistance is 4 N.
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Answer: Surface water is replaced by the <u>water</u> cycle.
Explanation: The water cycle is a cycle that describes the movement of water.
The first law of thermodynamics says that the variation of internal energy

of a gas is equal to the amount of heat Q supplied to the gas minus the work W done by the gas:

The variation of internal energy of a gas is:

As it can be seen, it depends only on the variation of temperature

. Since for an isothermal process

, then

. This means that the first law of thermodynamics becomes

and since the work done is 370 J, then the amount of heat is also 370 J:

.