Answer:
D. Histogram.
Explanation:
A histogram with equal intervals is suitable here.
The block gains gravitational potential energy as it gets higher,
and that's the energy that the motor has to supply.
The amount of potential energy gained by the block is
(mass) x (gravity) x (height)
= (2.0 kg) x (9.8 m/s²) x (15 m)
= (2 x 9.8 x 15) kg-m²/s² = 294 joules.
Power = (change in energy) / (time for the change)
= (294 joules) / (6 sec)
= 49 joules/second = 49 watts .
Answer:
Opening a coffee shop can be extremely profitable if you do it right. ... If you are franchising or buying an existing business, the location is preselected, but ... is the hallmark of any successful business, especially in the food service industry. ... Having customers order and pay up front and calling them when their drinks and ...
The SI unit of force is the Newton.
Joule is the unit of work and energy.
Watt is the unit of power.
