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3 years ago

What are spooky rays? How were they discovered? How are they related to visible light?

Physics

1 answer:

trapecia [35]3 years ago

5 0

<h2>What are spooky rays? :Spooky rays are Halloween; Spooky mystic background light beams rays.</h2>

<h2>How was spooky rays discovered; In 1895,a German Engineer Wilhelm Röntgen, was experimenting with making cathode rays .His device was blacked out.But he noticed a piece of cardboard painted with barium platinocyanide flouresced when it was placed near the cathode ray tube.</h2>

<h2>How are they related to visible light?: This occurs when two particles are inextricably linked.</h2>

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Which equation expresses the conservation of mechanical energy in a system where the only forms of mechanical energy are kinetic

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2 years ago

The space shuttle edeavor is launched to altitude of 500,000 m above the surface of earth. The shuttle travels at an average rat

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Answer:

714s

Explanation:

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2 years ago

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2 years ago

A 36.0-kg child swings in a swing supported by two chains, each 2.94 m long. The tension in each chain at the lowest point is 41

slamgirl [31]

Answer:

a) 6.25 m/s

b) f = 832 N

Explanation:

given data:

mass of child = 36 kg

length 2.94 m

tension = 416 N

For part (A), we need to add the forces in normal direction F(n),

$F(n) = 2\times T - m\times g = m\times a$

where T is tension

m is mass, g = 9.81 m/s^2, and

a is acceleration is given as.

$a = \frac{v^2}{r}$

where v is speed

r is the radius.

$2\times T - m\times g = m\times \frac{v^2}{r}$

$2*(416) - (36)\times (9.81) = (36)* \frac{v^2}{2.94}$

v = 6.25m/s

Part B)

F = 2*(416)

F = 832 N

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3 years ago

Read 2 more answers

A car with a mass of 860 kg sits at the top of a 32 meter high hill. Describe the transformations between potential and kinetic

I am Lyosha [343]

Answer:

Kinetic energy at the bottom equals potential energy at the top hence 269971.2 J

Explanation:

Assuming no friction and neglecting air resistance, from the law of conservation of energy, the potential energy that the car posses at 32 m is all converted to kinetic energy hence

PE= mgh

$KE= 0.5mv^{2}$

Here m denotes the mass of the car, g is acceleration due to gravity, h is the height and v is the speed of the car

The potential energy will be PE= 860*9.81*32=269971.2 J

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3 years ago

What are spooky rays? How were they discovered? How are they related to visible light?​

What are spooky rays? How were they discovered? How are they related to visible light?