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Vera_Pavlovna [14]
3 years ago
6

Jason uses a lens with focal length of 10.0 cm as a magnifier by holding it right up to his eye. he is observing an object that

is 8.0 cm from the lens. part a what is the angular magnification of the lens used this way if jason's near-point distance is 25 cm?
Physics
1 answer:
Svetlanka [38]3 years ago
7 0

Answer:

3.5

Explanation:

The angular magnification, M = 1 + 25cm/f  where f = focal length = 10.0 cm

M = 1 + 25cm/f

= 1 + 25cm/10.0 cm

= 1 + 2.5

= 3.5

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A proton travels through a region of uniform magnetic field at an angle \thetaθ relative to the magnetic field. The magnitude of
MArishka [77]

Answer:

\theta=15.52^{\circ}

Explanation:

The magnitude of the force of a moving cahrge, in our case a proton, trought a magentic field is given by:

F=|q||vB|sin(\theta) (1)

where:

q is the proton charge (q=1.6*10^{-19} C)

v is the proton velocity (v=5*10^{5} m/s)

B is the magnetic field (B = 1.17 T)

Now, we just need to solve the equaton (1) for \theta.

\theta=sin^{-1}\left(\frac{F}{qvB}\right)

But the force F = ma, then:

m is the mass of proton  (m=1.67*10^{-27} kg)

a is the acceleration (a=1.5*10^{13} m/s^{2})

\theta=sin^{-1}\left(\frac{m_{p}a}{q_{p}vB}\right)

\theta=sin^{-1}\left(\frac{1.67*10^{-27}*1.5*10^{13}}{1.6*10^{-19}*5*10^{5}*1.17}\right)

\theta=15.52^{\circ}

I hope it helps you!

7 0
3 years ago
1. A fixed pulley is a machine that increases the effort force.
IRISSAK [1]

For the specific questions given, these would be the answers:

1) False

2) False

3) True

4) True

5) True

I am hoping that these answers have satisfied your queries and it will be able to help you, thank you and have a nice day.

6 0
3 years ago
A body of mass 5 kg is at rest what would be the magnitude of force which will make the body move with the velocity of 10 metre
kondor19780726 [428]

Answer:

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Suppose you are in total equilibrium in water (in other words you are floating and not moving in any direction)What could you do
Eva8 [605]

Explanation:

According to newtons first law of motion:

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A body in equilibrium that is floating will be stable and not move in any direction. Even if it moves, the motion will be constant wouldn't change.

  • To move the body in any direction, one has to swim.
  • Swimming is the application of an external force to counter the balanced forces at equilibrium on a body.
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learn more:

Newton brainly.com/question/11411375

#learnwithBrainly

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