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
AveGali [126]
3 years ago
6

Gary needs to move a chair that is 20 pounds at a distance of 5 feet. How much work will he need to produce?

Physics
2 answers:
Bas_tet [7]3 years ago
8 0

answer- 100 ft-lbs

Hope I helped

tangare [24]3 years ago
3 0
<h2>Hello!</h2>

The answer is:

The answer is the first option, 100 ft-lbs.

<h2>Why?</h2>

To calculate the work done by an object over a distance, we need to multiply the applied force by the amount of movement (distance).

So, to calculate the work that Gary needs to do to move the chair, we need to use the following equation:

Work=Force*Distance

We are given,

Force=20lb\\Distance=5ft

Work=F*D\\Work=(20lb)*(5ft)=100ft-lbs

Hence, the answer is the first option, 100 ft-lbs.

Have a nice day!

You might be interested in
Kepler’s first law states that:
Likurg_2 [28]

Answer:

Kepler's first law means that planets move around the Sun in elliptical orbits. An ellipse is a shape that resembles a flattened circle. ... It is zero for a perfect circle.

6 0
3 years ago
it took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 miles per hour. How many miles lie
Art [367]

Given:

Time: 3.5 hrs

Velocity: 120 miles/hr

Now Distance=  Speed × Time

Now Velocity and speed have the same magnitude. Velocity being a vector quantity has a definite direction. Whereas speed is a scalar quantity,it indicates only the magnitude an doesn't define any direction.

Hence Distance = Velocity x time

Distance = 3.5 × 120 = 420 miles

7 0
3 years ago
what is the resistance of a car light bulb that conducts 0.025A current when connected to a 12V car accumulator? is the current
Sophie [7]

One form of Ohm's Law says . . . . . Resistance = Voltage / Current .

R = V / I

R = (12 v) / (0.025 A)

R = (12 / 0.025) (V/I)

<em>R = 480 Ohms</em>

I don't know if the current in the bulb is steady, because I don't know what a car's "accumulator" is.  (Floogle isn't sure either.)

If you're referring to the car's battery, then the current is quite steady, because the battery is a purely DC storage container.

If you're referring to the car's "alternator" ... the thing that generates electrical energy in a car to keep the battery charged ... then the current is pulsating DC, because that's the form of the alternator's output.  

7 0
3 years ago
What happens when the crests of two waves overlap
Sergio [31]
There are two<span> main types of </span>wave<span> interference: constructive interference and destructive interference. Constructive interference </span>happens<span> when the amplitude of the combined </span>waves<span> is larger than the amplitudes of the single </span>waves<span>. This can occur when the </span>crests of two<span> transverse </span><span>waves overlap.

Hope this helps!!! :D

</span>
4 0
3 years ago
The average lifetime of μ-mesons with a speed of 0.95c is measured to be 6 x 10^6 s. Find the average lifetime of μ-mesons in a
Mnenie [13.5K]

Answer:

19.2*10^6 s

Explanation:

The equation for time dilation is:

t = \frac{t'}{\sqrt{1-\frac{v^2}{c^2}}}

Then, if it is observed to have a life of 6*10^6 s, and it travels at 0.95 c:

t = \frac{6*10^6}{\sqrt{1-\frac{(0.95c)^2}{c^2}}} = 19.2*10^6 s

It has a lifetime of 19.2*10^6 s when observed from a frame of reference in which the particle is at rest.

7 0
4 years ago
Other questions:
  • Gary is trying to think of an object that could model a sunspot. His teacher tells him that such an object might be found right
    7·2 answers
  • Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past
    14·1 answer
  • An object is dropped from rest.<br> Calculate its velocity after 2.5 seconds
    9·1 answer
  • Given the word equation below:
    10·1 answer
  • WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!
    11·1 answer
  • What is the only "power" unit of measurement in light energy?
    14·1 answer
  • When a reaction that occurs when a person experiences very strong emotion especially those associated with a perceived threat is
    15·1 answer
  • Ayuda por favor cual es el objetivo del ultimate?
    10·1 answer
  • A 75 kg refrigerator is located on the 70th floor of skyscraper (300 meters above ground). What is the potential energy of the r
    10·2 answers
  • How would the photographer use the polarizing filter to find out the direction of polarization of the light coming from the blue
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!