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
OLEGan [10]
3 years ago
13

Suppose we wish to use a 8.0 m iron bar to lift a heavy object by using it as a lever. If we place the pivot point at a distance

of 1.0 m from the end of the bar that is in contact with the load and we can exert a downward force of 562 N on the other end of the bar, find the maximum load that this person is able to lift (pry) using this arrangement (neglect the mass of the bar in this problem).
Physics
1 answer:
lesya692 [45]3 years ago
5 0

Answer:

W = 3934 N ,     m = 401.43 kg

Explanation:

This problem can be solved using the rotational equilibrium relation, where we place the reference system at the pivot point and assume that the counterclockwise turns are positive.

     ∑τ = 0

     F 7 - W 1 = 0

    W = F 7/1

     W = 562 7

     W = 3934 N

   

W = mg

     m = W / g

     m = 3934 / 9.8

     m = 401.43 kg

You might be interested in
HELPP !! pleaseeeeeeeee!!!!!!!!
sertanlavr [38]

Answer:

Atomic name is your answer.

5 0
3 years ago
Read 2 more answers
1. A cyclist accelerates from 0 m/s to 9 m/s in 3 seconds. What is his<br>acceleration?​
Lapatulllka [165]

The cyclist accelerates from 0 m/s to 9 m/s in 3 seconds with an acceleration of 3 m/s².

Answer:

Explanation:

Acceleration exerted by an object is the measure of change in speed or velocity of that object with respect to time. So the initial and final velocities play a major role in determining the acceleration of the cyclist. As here the initial velocity of the cyclist is the speed at rest and that is given as 0 m/s. Then after 3 seconds, the velocity of the cyclist changes to 9 m/s.

Then acceleration = change in velocity/Time.

Acceleration = \frac{Change in velocity}{Time taken}

Acceleration = (9-0)/3=9/3=3 m/s².

So the cyclist accelerates from 0 m/s to 9 m/s in 3 seconds with an acceleration of 3 m/s².

3 0
3 years ago
A two-phase, liquid–vapor mixture of h2o, initially at x 5 30% and a pressure of 100 kpa, is contained in a piston– cylinder
Andrew [12]
A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs. 
Read more on Brainly.com - brainly.com/question/1581851#readmore
7 0
3 years ago
Which is not true about the variables in the relationship F = ma?
tatuchka [14]

Answer:

A

Explanation:

Because D is definitely true and there is only one false sentence what means if that non of B or C is false because if one is false so other one needs to be too.

8 0
3 years ago
How can I find the frequency of sound waves??
BigorU [14]

Answer:

divide the velocity of the wave by the wavelength. Write your answer in Hertz, or Hz, which is the unit for frequency. If you need to calculate the frequency from the time it takes to complete a wave cycle, or T, the frequency will be the inverse of the time, or 1 divided by T.

Explanation:

5 0
2 years ago
Other questions:
  • If Chris throws the baseball 60 meters in 4 seconds, what is the average speed of the football?
    9·1 answer
  • Is the classification for an instrument that produces sound whne a string or strings stretched between two points is plucked?
    13·1 answer
  • Help!! plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz!!ASAP!!!
    5·2 answers
  • A bullet of mass 0.017 kg traveling horizontally at a high speed of 290 m/s embeds itself in a block of mass 5 kg that is sittin
    6·1 answer
  • Of all of the types of forest biomes, tropical rain forests contain the most biodiversity, even though they do not have the most
    6·2 answers
  • A 5.83 kg object is released from rest while fully submerged in a liquid. The liquid displaced by the submerged object has a mas
    5·1 answer
  • Robebobeccoba fires a bullet from a gun while aiming at a target 149 m away. If the
    5·1 answer
  • Please help me answer this it is due by Sunday night.
    12·1 answer
  • a ball dropped from rest falls freely intil it hits the ground with the speed of 20 m/s . the tine furing which the ball is in f
    7·1 answer
  • Ice is put in a cooler to cool the contents. to speed up the cooling process, the ice can be?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!