3 years ago

What kind of image is formed by a convex lens when the object is less than a focal length away from the object?

Physics

1 answer:

maw [93]3 years ago

3 0

Bigger image and can get clearer

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A student throws a water balloon with speed v0 from a height h = 1.82 m at an angle θ = 29° above the horizontal toward a target

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Answer:

$v_o = 7.76 m/s$

Explanation:

As we projected the balloon at speed vo at an angle of 29 degree

so the two component of velocity is given as

$v_x = v_ocos29 = 0.875 v_o$

$v_y = v_o sin29 = 0.485 v_o$

now we know that in x direction we have

$d = v_x t$

$7.5 = 0.875 v_o t$

$v_o t = 8.57$

in y direction we have

$- 1.82 = (0.485 v_o) t - \frac{1}{2}gt^2$

$-1.82 = 0.485(8.57) - 4.9 t^2$

$t = 1.1 s$

now we have

$v_o = 7.76 m/s$

7 0

3 years ago

Can someone please answer this, ill give you brainliest and your getting 100 points.

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Answer: A

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2 years ago

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A triangle has sidesof length 12cm 16cm and 21 cm determine the 3 angles contained in a triangle

Deffense [45]

Angles will probably be 96° 35° and 49°
I tried to explain it with the working out, just re arrange the cosine rule for angles instead of side lengths.
if you need it explaining at all just message me :)
hoped it helped