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3 years ago

1) Radiation from the sun can be deflected or contained by

Physics

1 answer:

earnstyle [38]3 years ago

7 0

Answer:

Explanation:

light colors deflect ligjt

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Determine the frequency of light whose wavelength is 4.257 x 10-7 cm

marin [14]

$v = f (wavelength)$ i don't know what symbol ya'll use for wavelength so i just put the word instead.We use the greek symbol lambda.So just plug in everything you know.
wavelength=4.257×10^-7x10^-2 and
v=speed of light = 3×10^8
So you should get f= 7.04 ×10^15Hz

7 0

3 years ago

A solid cylinder is released from the top of an inclined plane of height 0.50 m. From what height, in meters, on the incline sho

dangina [55]

Answer:

Explanation:

for rolling motion down the plane acceleration is given by the following expression

a = g sinθ / (1 + k² / R²)

here k is radius of gyration and R is radius of the object rolling down .

for cylinder I = 1/2 m R²

so k² = R² / 2

k² / R² = 1/2

a = g sinθ /( 1 + 1 / 2 )

= 2 / 3 x g sinθ

v = √ 2 a s

= √ (2 x 2 / 3 x g sinθ s )

= √ (4 / 3 x g h )

= √ (4 / 3 x g x .5 )

= √ 2g / 3

for sphere I = 2/5 m R²

so k² = 2/5 R²

k² / R² = 2 / 5

a = g sinθ / (1 + 2 / 5)

= 5 / 7 x g sinθ

v = √ 2 a s

= √ (2 x 5 / 7 x g sinθ s )

= √ (10/7 x g h )

Given

√ (10/7 x g h ) = √ 2g / 3

10/7 x g h = 2g / 3

h = 14 / 30 m

= .47 m .

5 0

4 years ago

Answer this question asap plss<br> ( basketball )

alexandr1967 [171]

Just search it up on safari

6 0

3 years ago

Read 2 more answers

In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.40×1016 kg and a ra

Arturiano [62]

A) 8.11 m/s

For a satellite orbiting around an asteroid, the centripetal force is provided by the gravitational attraction between the satellite and the asteroid:

$m\frac{v^2}{(R+h)}=\frac{GMm}{(R+h)^2}$