The denser one will be the heavier one.
C) voltage is a force that pushes charge along
The current in the motor is 17.27 A
<h3>What is power?</h3>
power refers to the ability to do work. however as considered in physics is the product if current and voltage. The unit of power is Watts while the unit of current is in Ampere
<h3>What is efficiency?</h3>
efficiency is the ratio of work output to work input expressed in percentage
<h3>how to calculate for current in the motor</h3>
<u>Given data</u>
power output of 2.50hp
efficiency = 90..0%
current = power input / voltage
power input = output power / efficiency
= 2.5 / 90
= 2.778 hp
converting hp to watt gives
2.778 * 746
2072.388 W
current = 2072.388 / 120
current = 17.27 A
Read more on electric current here: brainly.com/question/1100341
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Answer:
The correct answer is:
(a) 84.240 kg
(b) 24.038 m
Explanation:
The given values are:
Force,
F = 81.0 N
Distance,
S = 13.0 m
Time,
t = 5.20 s
As we know,
The acceleration of mass will be:
⇒
On substituting the given values, we get
⇒
⇒
⇒
(a)
The mass of the block will be:
⇒
On substituting the given values, we get
⇒
⇒
(b)
The final velocity after a given time i.e.,
t = 5.00 s
⇒
On substituting the values, we get
⇒
⇒
In time, t = 5.00 s
The distance moved by the block will be:
⇒
On putting the values, we get
⇒
⇒