Question

The New Horizons space probet ransmits to earth at a frequency
of 8.3 GHz. At some point the intensity of the wave was I =
2.85e-25 W/m^{2.}.

- What will be the wave intensity three times the distance of the space probe?

- What is the wavelength of the transmitted signal?

If the sun's power is 3.88e+26 W.

- How far from the sun, the radiation intensity will be 0.263
W/m
^{2}?

- What will be the radiation pressure from sun absorption on the probe at that distance?

- If we consider the distance above as the distance from New Horizons to the ground. And that the power of the is 17 W. What will be the intensity of the wave transmitted by New Horizons that reaches the earth?

- How many times farther is the New Horizons probe relative to the beginning of the problem?

Answer #1

The New Horizons space probe transmits to Earth at a frequency
of 8.3 GHz. At some point the wave intensity was I = 2.85e-25
W/m^2.
a) What will be the intensity of the wave three times the
distance from the space probe?
b) What is the wavelength of the transmitted signal? If the
power of the sun is 3.88e + 26W.
c) At what distance from the sun, the radiation intensity will
be 0.263 W/m^2?
d) What will be the...

If the New Horizons space probe transmits to Earth at a
frequency of 8.3GHz. At some point the intensity of the wave was I
= 2.85e-25 W/m2.
a) What will be the intensity of
the wave three times the distance from the space probe?
b) What is the wavelength of the
transmitted signal?
c) If the sun power is
3.88e26 W, at what distance form the sun, the radiation
intensity will be 0.263 W/m2?
d) What will be the absorption radiation
pressure exerted by...

A radio station transmits isotropically (that is to say in all directions) electromagnetic radiation at the frequency of 98.6 MHz. At a certain distance from the radial station the intensity of the wave is I = 0.291 W / m^2.
a) What will be the intensity of the wave at a quarter of the distance from the radio station?
b) What is the wavelength of the transmitted signal?
If the antenna power is 8 MW.
c) At what distance from...

The light at the Earth from a certain star has an intensity of
about 22×10-8W/m2. If the star emits
radiation with the same power as our Sun, how far away is it from
Earth? NOTE: Use 1000 W/m^2 as the intensity of the Sun at the
Earth!

The intensity I = Power of the source / Area = PS / A. In the
case of the Earth, the PS / A that reaches us from the Sun is 1.4
Watts / m2. To know the total power of the Sun you just have to
clear for PS. The area is given by a sphere with a radius equal to
the Earth-Sun distance, R = 1UA. (1UA = distance from Earth to the
Sun.) With this intensity of...

Imagine Earth receives a radio wave signal from space that is
observed to be increasing in frequency. Assume the source is
producing a constant frequency and intensity wave. (a) If we do not
know the original frequency of the source, can we determine if the
object is drawing closer or moving farther away from us? Explain
your reasoning. (b) What other characteristic of the wave could we
use to determine if the source is approaching or receding?

If you know that the Solar intensity at Earth is S0 = 1361
W/m2 , what is the Electric field strength of Solar radiation at
Pluto? (you need to know the Sun to Earth distance
aE =1.5x101 1mandtheSuntoPlutodistanceaP =5.9x101 2
m)

1. A space probe is launched from Earth, headed for deep space.
At a distance of 10,000 miles from Earth's center, the
gravitational force on the space probe is 520 pounds. If the
gravitational force acting on the probe is proportional to 1/d2,
what is the force in Newtons when the probe is four times as far
from Earth's center?

A space probe (mass m) is designed to explore the outer edges of
the solar system. It is propelled by a solar sail, which is made of
a large circular sheet of highly reflective fabric. Assume the sun
radiated with power P.
1. How much could the propulsion be increased if the radius of
the sail were three times larger?
2. Jupiter is about five times as far from the sun as the earth.
When the probe reaches jupiter, how...

The light intensity a certain distance away from a
spherically-symmetric light source is 1200 W/m2. What
would be the new intensity (in W/m2) if the source power
were tripled while the observation point is made to be five times
farther from the source?
A. 156
B. 975
C. 144
D. 245
E. None of these

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