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GalinKa [24]
3 years ago
8

Which of the following objects uses two converging lenses to produce two images, the second of which is virtual, magnified, and

inverted
Camera

Compound microscope

Corrective eyeglasses

Slide projector
Physics
1 answer:
Katyanochek1 [597]3 years ago
3 0
<span>Microscope. A basic microscope is made up of two converging lenses. One reason for using two lenses rather than just one is that it's easier to get higher magnification.</span>
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A 200 N object is resting on a surface with a coefficient of static friction equal to 0.15. A person pushes horizontally with a
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20 N

Explanation:

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  the force of friction will cancel out the 20 N force applied

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A physical pendulum in the form of a planar object moves in simple harmonic motion with a frequency of 0.290 Hz. The pendulum ha
BARSIC [14]

Answer:

1.4584 kgm^2

Explanation:

Time period of a physical pendulum is given by T=2Π\sqrt{\frac{I}{mgd}}

Here f=0.290 so T=\frac{1}{F}=\frac{1}{0.29}=3.44827

Mass =2.40 kg

d=0.300 m

g =9.8 msec^2

So 3.448=2\times \pi \sqrt{\frac{I}{2.4\times 9.81\times 0.300}}=1.4584  kg-m^2

So the moment of inertia of the pendulum about the pivot point will be 1.4584 kg-m^2

7 0
3 years ago
A force of 40 N is applied in a direction perpendicular to the end of a 9 m long bar that pivots about its other end. Find the t
snow_lady [41]

Answer:

360 Nm

Explanation:

Torque: This is the force that tend to cause a body to rotate or twist. The S.I unit of torque is Newton- meter (Nm).

From the question,

The expression of torque is given as

τ = F×d......................... Equation 1

Where, τ = Torque, F = force, d = distance of the bar perpendicular to the force.

Given: F = 40 N, d = 9 m

Substitute into equation 1

τ  = 40(9)

τ  = 360 Nm.

5 0
3 years ago
Read 2 more answers
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