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ololo11 [35]
3 years ago
8

How much time would it take to exert 700W of power while doing 700J of work?​

Physics
1 answer:
Valentin [98]3 years ago
6 0

Answer:

The answer to your question is time = 1 s

Explanation:

Data

time = ?

Power = 700 W

Work = 700 J

Power is defined as the work done per unit of time.

Formula

Power = Work / Time

-Solve for time

Time = Work/Power

-Substitution

Time = 700 / 700

-Result

Time = 1 s

Conclusion

In 1 second and with 700 J there will be produced 700 watts

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In the apple-pulling-the orange sequence in this chapter, what is the force that accelerates the system across the floor?.
Montano1993 [528]

In the apple-pulling-the orange sequence in this chapter, the force that accelerates the system across the floor is;

Friction between the apple and the floor.

<h3>Frictional Force</h3>

The sequence talked about here is a system showing how an apple was pulling an orange that was located inside a moving toy.

Now, we know that there is usually a force that acts between a moving object and the floor and this force is called friction force.

Thus, the force that makes the apple to pull the orange with acceleration across the floor is called friction force between the apple and the floor.

Read more about Frictional Force at;brainly.com/question/13680415

8 0
2 years ago
A very long line of charge with charge per unit length +8.00 μC/m is on the x-axis and its midpoint is at x = 0. A second very l
artcher [175]

Answer:

at y=6.29 cm the charge of the two distribution will be equal.

Explanation:

Given:

linear charge density on the x-axis, \lambda_1=8\times 10^{-6}\ C

linear charge density of the other charge distribution, \lambda_2=-6\times 10^{-6}\ C

Since both the linear charges are parallel and aligned by their centers hence we get the symmetric point along the y-axis where the electric fields will be equal.

Let the neural point be at x meters from the x-axis then the distance of that point from the y-axis will be (0.11-x) meters.

<u>we know, the electric field due to linear charge is given as:</u>

E=\frac{\lambda}{2\pi.r.\epsilon_0}

where:

\lambda= linear charge density

r = radial distance from the center of wire

\epsilon_0= permittivity of free space

Therefore,

E_1=E_2

\frac{\lambda_1}{2\pi.x.\epsilon_0}=\frac{\lambda_2}{2\pi.(0.11-x).\epsilon_0}

\frac{\lambda_1}{x} =\frac{\lambda_2}{0.11-x}

\frac{8\times 10^{-6}}{x} =\frac{6\times 10^{-6}}{0.11-x}

x=0.0629\ m

∴at y=6.29 cm the charge of the two distribution will be equal.

9 0
3 years ago
A diverging lens with a focal length of 14 cm is placed 12 cm to the right of a converging lens with a focal length of 21 cm. An
IRINA_888 [86]

Answer:

-0.233 m left of diverging lens and ( 0.12 - 0.233 ) = -113 m left of conversing

and

0.023 m  right of diverging lens

Explanation:

given data

focal length f2 = 14 cm = -0.14 m

Separation s = 12 cm = 0.12 m

focal length f1 = 21 cm = 0.21 m

distance u1 = 38 cm

to find out

final image be located and Where will the image

solution

we find find  image location i.e v2

so by lens formula v1 is

1/f = 1/u + 1/v     ...............1

v1 = 1/(1/f1 - 1/u1)

v1 = 1/( 1/0.21 - 1/0.38)

v1 = 0.47 m

and

u2 = s - v1

u2 = 0.12 - 0.47

u2 = -0.35

so from equation 1

v2 = 1/(1/f2 - 1/u2)

v2 = 1/(-1/0.14 + 1/0.35)

v2 = -0.233 m

so -0.233 m left of diverging lens and ( 0.12 - 0.233 ) = -113 m left of conversing

and

for Separation s = 45 cm = 0.45 m

v1 = 1/(1/f1 - 1/u1)

v1 =0.47 m

and

u2 = s - v1

u2 = 0.45 - 0.47 =- 0.02 m

so

v2 = 1/(1/f2 - 1/u2)

v2 = 1/(-1/0.14 + 1/0.02)

v2 = 0.023

so here 0.023 m  right of diverging lens

6 0
3 years ago
Could someone help me with this one please! Will give brainiest (if possible)! I think it's C. but I'm not sure :/
const2013 [10]

I believe you are right! If the wheels were bigger then they would add more mobility to the wagon with less effort because Allowing it to take more weight (from the wagon) allowing you to pull much easier.

Have a blessed day!

5 0
4 years ago
A ball is thrown straight off a 150 meter high roof at 20 m/s.
juin [17]

Answer:

I'll try and find the answer for you:)

Explanation:

I can't promise you I will though

7 0
3 years ago
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