<h3><u>Answer;</u></h3>
Mechanical advantage
<h3><u>Explanation;</u></h3>
- Mechanical advantage is the ratio of force output from a machine divided by the force input into the machine.
- Mechanical advantage measures the machine's force-magnifying effect. It is an advantage gained by using simple machines to accomplish work with less effort.
- The formula is; M.A = output force/ Input force
Answer:
Speed or velocity is plotted on the Y-axis. A straight horizontal line on a speed-time graph means that speed is constant. It is not changing over time. A straight line does not mean that the object is not moving
Power is the rate of work done given by dividing work done by time.Efficiency is the ratio of work output to work input
power input= 100 watts
power output = x
efficiency= 0.8
thus 0.8 = x/100, therefore x = 80
power is given by energy times time
hence time = 80/300000 = 0.00026 seconds
Time in hours = 0.00026/360 = 7.407 x 10 ∧7 hours
Answer:
D
Explanation:
He is storing energy to throw it.
Potential Energy = Stored Energy
Answer:
The extra force exerted against the bottom is 5880 N.
Explanation:
Given that,
Diameter of the bottle= 2.00 cm
Diameter of the jug = 14.0 cm
Force = 120 N
We need to calculate the extra force exerted against the bottom
Using formula of force
Put the value into the formula
Hence, The extra force exerted against the bottom is 5880 N.
