Power can be define as what
2 answers:
An exponent
For example the power in is the 2. It is how many times the 5 is multiplying itself. In this case 5 would multiply itself 2 times.
So... not 5 x 2, but 5 x 5
<h2>Answer</h2>
It is the rate of doing work
<h2>Explanation</h2>Power can be defined as the ability to influence the behavior of others and resist unwanted influence in return.
In physics, power is rate of doing work, or it’s the amount of energy transferred per unit time. Power is a scalar quantity mean a specific direction is not required for it.
Being the rate of work, the equation for power can be written:
For example
You are running upstair, you are applying force to cover some distance in specific time
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Answer:
1472.98 m
Explanation:
Data provided:
Speed of circular looping, v = 340 m/s
Acceleration, a = 8g
here,
g is the acceleration due to the gravity = 9.81 m/s²
Now,
the centripetal acceleration is given as,
r is the radius of the loop
on substituting the respective values, we get
or
r = 1472.98 m
The final velocity of the skater is 2.34 m/s forward
Explanation:
We can solve this problem by using the law of conservation of momentum. In fact, the total momentum of the system before and after the ball is thrown must be conserved, in absence of external forces.
Before the ball is thrown, the total momentum is:
where
M = 61 kg is the mass of the skater
m = 4.0 kg is the mass of the ball
u = 2.5 m/s (forward) is the combined velocity of the skater and the ball
After, the ball is thrown at twice the velocity, so the final total momentum is
where
V is the final velocity of the skater
v = 2(2.5) = 5.0 is the final velocity of the ball
Since the total momentum must be conserved, we can write
So, the skater is moving at 2.34 m/s (forward) after the shot.
Learn more about momentum:
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