Answer:
Power output = 
Explanation:
Given:
Mass of the elevator is, 
Height to which it is raised is, 
Acceleration due to gravity is, 
Time taken by the motor to raise the elevator is, 
Now, work done on the elevator by the motor is equal to the increase in the gravitational potential energy of the elevator.
Increase in gravitational potential energy is given as:
Therefore, work done by motor is, 
Now, we know that, power is work done in unit time. So, power output is given as:
![Power=\frac{W}{t}\\\\Power=\frac{10\times 10^4\ J}{5.0\ s}\\\\Power=2\times 10^4\ J/s\\\\Power=2\times 10^4\ W..........[1 W = 1\ J/s]](https://tex.z-dn.net/?f=Power%3D%5Cfrac%7BW%7D%7Bt%7D%5C%5C%5C%5CPower%3D%5Cfrac%7B10%5Ctimes%2010%5E4%5C%20J%7D%7B5.0%5C%20s%7D%5C%5C%5C%5CPower%3D2%5Ctimes%2010%5E4%5C%20J%2Fs%5C%5C%5C%5CPower%3D2%5Ctimes%2010%5E4%5C%20W..........%5B1%20W%20%3D%201%5C%20J%2Fs%5D)
Therefore, the power output of the first motor is
The electromagnetic spectrum spans a variety of radiation types including x-rays all the way through to radio waves. Humans are able to only see in the visible part of the electromagnetic spectrum (390-700nm) but bees can see ultraviolet radiation (10-100nm). Lower wavelength electromagnetic waves have more energy. Hence, compared with humans, bees can sense electromagnetic waves that have more energy.
How do I translate this? Sorry I cannot understand what you just said
Answer:
The orbital period of the planet is 387.62 days.
Explanation:
Given that,
Mass of planet
Mass of star 
Radius of the orbit
Using centripetal and gravitational force
The centripetal force is given by
We know that,
....(I)
The gravitational force is given by
....(II)
From equation (I) and (II)
Where, m = mass of planet
m' = mass of star
G = gravitational constant
r = radius of the orbit
T = time period
Put the value into the formula
Hence, The orbital period of the planet is 387.62 days.
Answer:
A driver breaks suddenly and the passengers are flung forward
