1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
IRINA_888 [86]
3 years ago
9

What is the maximum velocity at which a 60-watt motor can lift an 8.5-kg mass upward?

Physics
1 answer:
enyata [817]3 years ago
3 0

Pick <em>choice-A</em> .

Weight of a mass = (mass) x (gravity)

Earth gravity = (9.8 m/s )

Weight of a mass = (9.8 x mass) Newtons

Work = (force) x (distance)

Power = (work done) / (time to do the work)

Weight of this mass = (8.5 kg) x ( 9.8 m/s ) = 83.3 Newtons

Work to lift it 1 meter = (83.3 N) x (1 m) = 83.3 Joules

Power to lift it 1 meter/sec = 83.3 Joule/sec = 83.3 watt

Power to lift it ' v ' meters/sec = 83.3v watts

In this problem ...

83.3 v watts = 60 watts

v =  60/83.3 m/s

<em>v =  0.72 m/s</em>

You might be interested in
Where is Ceres located
Vika [28.1K]
The coordinates are- <span>RA 19° 24' 0" | Dec 59° 0.000'

It is located in the asteroid belt between mars and jupiter :) 

</span><span>
</span>
4 0
4 years ago
Read 2 more answers
Arthur conducts a controlled experiment several times. The results of each test show that his hypothesis is not supported. Which
sladkih [1.3K]

Hello. You did not inform the experiment that Arthur is conducting, which makes it impossible for your question to be answered accurately. However, I will try to help you in the best possible way.

The hypothesis is an assumption that is made before the experiment is carried out. This hypothesis is formed with the observation of some phenomenon of nature where the researcher believes that two or more elements interact to form a result. In this case, the experiment is carried out to determine whether the assumption, that is, the hypothesis is false or true. In the event that an experiment determines that the hypothesis is false, two things may have occurred: (a) the experiment was set up, or analyzed incorrectly, (b) the elements tested have no relation to the observed phenomenon.

3 0
3 years ago
1) the strength of an electromagnet can be increased by
miss Akunina [59]
Using coils of fewer turns on the electromagnet
5 0
3 years ago
A ___ is the unit of measurement for force.
bogdanovich [222]

Answer:

Newton (N)

Explanation:

A newton is the unit of measurement for force

4 0
3 years ago
Help ;-;
nasty-shy [4]

Answer:

all qn 1,2,3 have same answer ,. Yes,. hope it helps

3 0
3 years ago
Other questions:
  • Element of thunderstorms heavy rain
    13·1 answer
  • If a 60-g object has a volume of 30 cm", what is its density?
    14·1 answer
  • At what distance from a long, straight wire carrying a current of 8.7 A is the magnetic field due to the wire equal to the stren
    8·1 answer
  • 27. A 0.150 kg baseball is thrown upward with an initial
    7·1 answer
  • The Valence electrons determine an atom's ?
    10·1 answer
  • The thrust F of a screw propeller is known to depend upon the diameter d, Speed of advance v, fluid density e, revolution per se
    8·1 answer
  • PLEASE HELP URGENT 1. You put 1 gram of salt into 1 liter of water and stir. The resulting liquid is an example of
    8·1 answer
  • What happened in the gray zone between solid and liquid​
    8·1 answer
  • A cat (5kg) has a potential energy of 8J. The cat is stuck on top of a bookshelf and then falls off the bookshelf. What is the v
    5·1 answer
  • Please help 40 points!!!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!