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Andreyy89
3 years ago
9

....................................

Physics
1 answer:
IRISSAK [1]3 years ago
3 0
No question........ ok then :)
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VERY URGENT GIVING BRAINLY​
lakkis [162]

Answer:

A

Explanation:

There is a mechanical advantage in this system....

    she only needed 100 N to lift 500 N

        1:5      she lifted it 2 meters, so if there WAS NO friction, she would have to pull in 5 x 2 = 10 meters

   but there IS friction so she must have pulled in MORE than 10 m  

8 0
2 years ago
Calculate the kinetic energy in joules of a 10g bullet moving at 300 m/s
mina [271]
Given: Mass m= 10 g   convert to Kg  m = 0.01 Kg        Velocity  V = 300 m/s

Required: Kinetic energy = K.E = 1/2 mV²

K.E = 1/2 (0.01 Kg)(300 m/s)²

K.E = 450 J
8 0
4 years ago
Read 2 more answers
What is the different features between the bar magnet and the horseshoe magnet??
hram777 [196]
A horseshoe magnet has north and south, so does a bar magnet, but with the horseshoe  magnet, the whole thing is bent so both ends are the same way. <span />
5 0
3 years ago
*please refer to photo attached* The figure below shows a small, charged sphere, with a charge of q = +44.0 nC, that moves a dis
pishuonlain [190]

(a) The magnitude of the force is 1.32 x 10⁻⁵ N and direction of the electric force on the sphere towards the right.

(b) The work done on the sphere by the electric force as it moves from A to B is 2.5 x 10⁻⁶ J.

(c) The change of the electric potential energy as the sphere moves from A to B is 2.5 x 10⁻⁶ J.

(d) The potential difference between A and B is 56.7 V.

<h3>Electric force on the sphere</h3>

The electric force on the sphere is calculated as follows;

F = Eq

where;

  • E is electric field
  • q is the charge

F = 300 x (44 x 10⁻⁹)

F = 1.32 x 10⁻⁵ N

The direction of the force is towards the right.

<h3>Work done on the sphere</h3>

W = Fd

W = 1.32 x 10⁻⁵ N  x 0.189 m

W = 2.5 x 10⁻⁶ J

<h3>Change of the electric potential energy </h3>

The change in the electric potential energy (in J) as the sphere moves from A to B is equal to work done in moving the charge = 2.5 x 10⁻⁶ J.

<h3> Potential difference between A and B</h3>

VB − VA =  Ed

VB − VA =  300 N/C  x   0.189 m

VB − VA =  56.7 V

Thus, the magnitude of the force is 1.32 x 10⁻⁵ N and direction of the electric force on the sphere towards the right.

The work done on the sphere by the electric force as it moves from A to B is 2.5 x 10⁻⁶ J.

The change of the electric potential energy as the sphere moves from A to B is 2.5 x 10⁻⁶ J.

The potential difference between A and B is 56.7 V.

Learn more about potential difference here: brainly.com/question/9060304

#SPJ1

6 0
2 years ago
Elena puts her eggs in a cage made out of wood. The wood breaks during
artcher [175]

Answer:

I think the answer is Decreases the time that the egg slows down.

Explanation:

If not try it starts slowing down

O Increases the time that the egg slows down.

7 0
3 years ago
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