Answer:
None
Explanation:
Assuming the man or child is not moving, the man does not do any work.
W = work
F = force
d = distance
The general equation for work is:
W = F*d*cos(theta)
Since neither in the problem moved any distance, d would be 0, so W would be 0 as well.
Hope this helps!!
<span>Lysosomes and vacuoles have the same
functions. Both are enclosed organelle compartments within a cell and are recycling centers responsible for
breaking down substances or complex molecules that goes into a cell. Both are
sacs which contain digestive enzymes for breaking down foreign materials, food,
and pathogens. Vacuoles are found in plant cells and lysosomes are in animal
cells. Vacuoles play an important role in plant’s food production. It stores
water and hydration of plants.
</span>
Answer : The final temperature is, 
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
where,
= specific heat of ice = 
= specific heat of water = 
= mass of ice = 50 g
= mass of water = 200 g
= final temperature = ?
= initial temperature of ice = 
= initial temperature of water = 
Now put all the given values in the above formula, we get:
Therefore, the final temperature is,
There's no such thing as one balanced force or one unbalanced force.
If ALL of the forces in a GROUP of forces acting on the same object
all add up to zero, then we say that the GROUP of forces is balanced.
If they don't, then the GROUP of forces is unbalanced.
Two or more forces can be balanced or unbalanced.
One force can't.
Answer:
The change in gravitational potential energy is -1.80x10⁵ J.
Explanation:
The change in gravitational potential energy is given by:
Where:
"i" is for final and "f" for final
m: is the mass
g: is the gravity = 9.81 m/s²
h: is the height
For the car and the passengers we have:
The minus sign is because when the elevator car and the passengers are up they have a bigger gravitational potential energy than when they are in the ground.
Therefore, the change in gravitational potential energy is -1.80x10⁵ J.
I hope it helps you!
