2 years ago

24- Which of the fallowing devices make use a lens

Physics

2 answers:

mezya [45]2 years ago

6 0

Answer:

Explanation:

all because the projector is a lens and the magnifying also the microscope

Luda [366]2 years ago

5 0

Answer would be D because they all use it

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Answer:

Explanation:

When the two or more forces acting on a body such tat the net force on the body or the acceleration of the body is zero, then such forces are balanced forces.

For example, in the game of tug of war, both the teams pulls the rope with same force but in opposite directions so that the net acceleration is zero it means a balanced force is acting on the rope.

When tow or more forces acting on a body and there is some net force or acceleration of the body, then the forces are said to be unbalanced.

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3 years ago

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The position of a particle along a straight-line path is defined by s=(t3−6t2−15t+7) ft, where t is in seconds. part a part comp

WARRIOR [948]

A) The position of the particle along the straight-line path is given by
$s=(t^3-6t^2-15 t+7)ft$
where t is the time.
If we substitute t=11 s inside the equation, we find the total distance covered during this time, in feet:
$s=(11)^3-6(11)^2-15(11)+7=597 ft$
which converted into meters is s=182 m.

b) The average velocity of the particle at t=11 s is equal to the total distance travelled, s=597 ft, divided by the time taken, t=11 s:
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We can also calculate it in meters/second:
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