3 years ago

Dual Nature of Light

1 answer:

6 0

scientists believe that light is made of streams of particles because only the presence of photons can explain phenomena observed during experiments on the photoelectric effect.

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g If you keep the launch angle fixed, but double the initial launch speed, what happens to the range?

kiruha [24]

Answer:

Range will become 4 times of initial range

Explanation:

Let the velocity of projection is u

And angle at which projectile is projected is $\Theta$

And acceleration due to gravity is $g\ m/sec^2$

So range of projectile is equal to $R=\frac{u^2sin2\Theta }{g}$ ........eqn 1

Now in second case it is given that velocity of launching is doubled

So new velocity $u_{new}=2u$

So new range will be equal to $R_{new}=\frac{(2u)^2sin2\Theta }{g}=\frac{4u^2sin2\Theta }{g}$ .....eqn 2

Now dividing eqn 2 by eqn 1

$\frac{R_{new}}{R}=\frac{4u^2sin2\Theta }{g}\times \frac{g}{u^2sin2\Theta }$

$R_{new}=4R$

So if we double the initial launch speed then range will become 4 times

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4 years ago

Juan makes an adjustment to an electromagnet that causes the electromagnet to lose some of its strength. What did Juan most like

bagirrra123 [75]

Answer:

Its A

Explanation:

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3 years ago

Read 2 more answers

A sloping surface separating air masses that differ in temperature and moisture content is called a _________.

svet-max [94.6K]

Answer:

A sloping surface separating air masses that differ in temperature and moisture content is called a front.

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4 years ago

What happens to the resistance of a wire as it gets wet

frozen [14]

It will cause corrosion of the wire inside

8 0

3 years ago

Calculate the acceleration due to gravity at a point 1000km above the surface of the earth?

klio [65]

Answer:

g' = 6.74 m/s²

Explanation:

R = 6400km

h = 1000km

g = 9.81m/s

g' = g(1 - 2h/R)

Goodluck

3 0

4 years ago