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ivolga24 [154]
3 years ago
14

Calculate the force exerted by a machine that does 4800 J of work over a distance of 22.5 m?​

Physics
1 answer:
Inessa [10]3 years ago
7 0

Answer:

About 213.33 N

Explanation:

Force can be found using the following formula:

F= w/d

where w is work in Joules (J) and d is distance in meters (m).

We know that the machine does 4800 Joules of work over a distance of 22.5 meters. Therefore,

w=4800 J

d=22.5 m

Substitute these values into the formula.

F= 4800 J/ 22.5 m

Divide 4800 by 22.5

F= 213.333333 J/m

Let's round to the nearest hundredth. The 3 in the thousandth place indicates the 3 in the hundredth place should stay.

F= 213.33 J/m

1 J/m is equal to 1 Newton, or N.

F= 213.33 N

The force exerted by the machine is about 213.33 Newtons

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A cup of coffee is sitting on a table in a train that is moving with a constant velocity. The coefficient of static friction bet
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Answer:

a = 2.94 m/s²

Explanation:

In order for the cup not to slip, the unbalanced force on cup must be equal to the frictional force:

Unbalanced Force = Frictional Force

ma = μR = μW

ma = μmg

a = μg

where,

a = maximum acceleration for the cup not to slip = ?

μ = coefficient of static friction = 0.3

g = acceleration due to gravity = 9.8 m/s²

Therefore,

a = (0.3)(9.8 m/s²)

<u>a = 2.94 m/s²</u>

3 0
3 years ago
A pendulum has a length of 2 m and a 30 kg mass hanging on the end. What is the period of the
anastassius [24]

Answer:

T = 2.83701481512 seconds

Explanation:

Hi!

The formula that you will want to use to solve this question is:

T = 2\pi *\sqrt{\frac{L}{g}  }

T--> period

L --> length of the pendulum

g --> acceleration due to gravity (9.8m/s^2)

since we know that the mass of the bob at the end of the pendulum does not affect the period of the pendulum, we can go ahead and ignore that bit of information (unless, of course, the weight causes the pendulum to stretch)

so now we can plug in our given info into the formula above and solve!

T = 2*pi * sqrt(2/9.8)

T = 2.83701481512 seconds

*Note*

- I used 3.14 to pi, if you need to use a different value for pi (a longer version, etc) your answer will be slightly different

I hope this helped!

7 0
3 years ago
You are a pirate working for dread pirate roberts. you are in charge of a cannon that exerts a force 10000 n on a cannon ball wh
KATRIN_1 [288]
<span>Answer: Let m = mass of cannon Then 10000 = ma a = 10000/m v^2 = u^2 + 2as v^2 = 0 + 2as 84^2 = 2(2.21)(10000/m) 84^2 m = 4.42(10000) m = 6.264172336 = 6.26 kg Part 2 Range = u^2sin(2x38)/g = 84^2sin(76)/9.8 = 698.6129229 = 698.6 m</span>
7 0
4 years ago
Which statement describes the force between charged particles
Anuta_ua [19.1K]
The force (attractive if the charges are dissimilar, else repulsive) is along a line that connects the two particles.
3 0
4 years ago
A bicycle generator rotates at 154 rads/s, producing an 16.5 V peak emf. It has a 1.00 by 3.00 cm rectangular coil in a 0.68 T f
WITCHER [35]

Answer:

525.2

Explanation:

w = 154 rad/s, e0 = 16.5 V, A = 1 x 3 = 3 cm^2 = 3 x 10^-4 m^2, B = 0.68 T

Let the number of turns be N.

By use of law of electromagnetic induction

e0 = N B A w

16.5 = N x 0.68 x 3 x 10^-4 x 154

N = 525.2

7 0
3 years ago
Read 2 more answers
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