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Sidana [21]
3 years ago
6

Please Help!!!!

Physics
1 answer:
oee [108]3 years ago
7 0
I think is limestone
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A radio telescope detects an incoming radio wave which has a power of 1.00 x 10-24 W. If this signal creates a potential of 1.00
soldier1979 [14.2K]

Answer:

Therefore, the number of electrons moving through the receiver circuit per second is 6250 electrons/s.

Explanation:

Given:

Power of radio wave, P = 1 × 10⁻²⁴ W

Potential of signal, V = 1 × 10⁻⁹ V

Solution:

Consider the number of electrons flowing through the receiver circuit per second be 'n'.

The current flowing through the circuit will be:

I = P/V

 = (1 × 10⁻²⁴ W)/(1 × 10⁻⁹ V)

 = 1 × 10⁻¹⁵ A

Then, the number of electrons moving through the receiver circuit can be  calculated as:

ne = I

where, e is charge on an electron

            I is current flowing through the circuit

Applying values in above equation we get:

n(1.6×10⁻¹⁹ C) = (1 × 10⁻¹⁵ A)

n = (1 × 10⁻¹⁵ A)/(1.6×10⁻¹⁹ C)

n = 6250 electrons/s

Therefore, the number of electrons moving through the receiver circuit per second is 6250 electrons/s.

Learn more about electron flow here:

<u>brainly.com/question/6531580</u>

#SPJ4

7 0
2 years ago
How much force will it take to lift a 54n object if it is on a lever that is 19m long on the side the object is on while i push
avanturin [10]

Answer:

How long will it take to travel a distance of 96 km? Givens. Solving For ... An object accelerates 3.0 m/s2 when a force of 6.0 Newtons is applied to it.

Explanation:

6 0
3 years ago
A 70.0-kilogram man is walking at a speed if 2.0 m/s. What is the kinetic energy?
Paraphin [41]

Answer:

140 J

Explanation:

From the the question, the mass of the man =70.0 kg and the speed at which the man is walking =2.0 m/s.

K.E =  \frac{1}{2}m {v}^{2}

where K.E = the kinetic energy, m=mass and v= speed.

By substitution,

K.E =  \frac{1}{2} \times 70 \times  {2}^{2}

\implies \: K.E = \frac{280}{2}

\implies K.E =140

Hence the kinetic energy of the man is 140J

3 0
3 years ago
Why machines are never 100 percent efficient
dem82 [27]
Machines are never 100% efficient because they are made by humans and we make errors and nothing we make is perfect, that's why the machines we build are not 100% accurate or efficient.
8 0
3 years ago
Read 2 more answers
Archimedes' principle can be used to calculate the density of a fluid as well as that of a solid. suppose a chunk of iron with a
ella [17]
<span>(a) 39.5 g (b) 49.53 cm^3 (c) 0.7975 g/cm^3, liquid is an alcohol (a) This will be the difference between the weight of the iron in air and the weight submerged in fluid. So: 390.0 g - 350.5 g = 39.5 g (b) The density of iron is 7.874 g/cm^3, so the volume of the iron chunk is 390.0 g / 7.874 g/cm^3 = 49.53 cm^3 (c) The density of the fluid will be the mass of the fluid divided by the volume, so: 39.5 g / 49.53 cm^3 = 0.7975 g/cm^3 Since the density is very dependent upon the temperature and since the temperature wasn't specified, the actual substance can't be completely identified. Although some candidates are: 1. Mixture of Alcohol and water. Density ranges from 0.785 g/cm^3 to 1.000 g/cm^3. 2. Crude oil. Density 0.790 g/cm^3 3. Hydrazine. Density 0.795 g/cm^3 4. Methanol. Density 0.791 g/cm^3 5. Ocimene. Density 0.798 g/cm^3 The most likely candidate is a high concentration of an alcohol of some sort.</span>
5 0
3 years ago
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