Answer:
force on larger piston = <em> </em>
Explanation:
we label the pistons as piston A and piston B
small piston A:
area = a
force = f
large piston B:
area = A
force = ?
<em>Pascal's law of pressure state that the pressure delivered to a liquid is transmitted undiminished to every portion of the fluid.</em>
we know that pressure = force ÷ area
pressure of piston A =
pressure of piston B =
obeying Pascal's law, the system pressures must be equal. Therefore
force on large piston (B) = F =<em> </em>
Answer:
85 N
Explanation:
Given that crate mass = 20kg
Distance = 6m
Time = 3 seconds
Coefficient of kinetic friction = 0.3
We begin by calculating for acceleration
Which was gotten as 1.33 m/s sq
SEE THE ATTACHEMENT FOR DETAILS
Answer:
B.Focused,warm
Explanation:
when the rays are focused more energy an area recieves and it is warmer there.
Here the right answer
The motor is connected to a battery. When the switch is closed, the current starts<span> to flow and the coil becomes an electromagnet. In this case the current is flowing </span>anticlockwise<span> in the top of the coil. This makes the top a </span>north<span> pole. This north pole is </span><span>attracted </span><span>to the south pole on the left. So the top of the coil </span>turns<span> towards the left. Notice that the bottom of the coil is a </span>south<span> pole and is attracted to the magnet on the right. Hope this helped</span>
Answer:
Initial velocity U = 0
Final velocity V = 32.23 m/s
Explanation:
Given that a coin is dropped from the top of the Tower of Pisa, 53m above the ground.
What is the coin's initial velocity ?
Since the coin is dropped from the tower, the initial velocity U will be equal to zero.
Therefore, U = 0
But the final velocity V will be calculated by using the formula
V^2 = U^2 + 2gH
V^2 = 0 + 2 × 9.8 × 53
V^2 = 1038.8
V = sqrt ( 1038.8)
V = 32.23 m/s