2 years ago

Crews at the International Space Station are researching the effects of the weightlessness of space on ________.

Physics

2 answers:

Natalija [7]2 years ago

8 0

The answer is A. The human body

andrezito [222]2 years ago

6 0

A: Human Body

C is wrong because they don’t have the tools to test it on another planet

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I need this ASAP please!!!

WINSTONCH [101]

It’s E we just had a test in this and I got it right

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2 years ago

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What is the energy of a photon of light with a wavelength of 3.10 × 10−7 m?

elena-s [515]

E = hf = hc/λ
= (6.6 x 10^-34) × (3 × 10^8) ÷ (3.1 × 10^-7)
=6.138 × 10^-32 J

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2 years ago

Consider an electron that is 10-10 m from an alpha particle (9 = 3.2 x 10-19 C). (Enter the magnitudes.) (a) What is the electri

Studentka2010 [4]

Answer:

a) $E=2.88*10^{11}N/C$

b) $E=1.44*10^{11}N/C$

c) $F=4.61*10^{-8}N$

Explanation:

We use the definition of a electric field produced by a point charge:

$E=k*q/r^2$

a)Electric Field due to the alpha particle:

$E=k*q_{alpha}/r^2=9*10^9*3.2*10^{-19}/(10^{-10})^2=2.88*10^{11}N/C$

b)Electric Field due to electron:

$E=k*q_{electron}/r^2=9*10^9*1.6*10^{-19}/(10^{-10})^2=1.44*10^{11}N/C$

c)Electric Force on the alpha particle, on the electron:

The alpha particle and electron feel the same force but with opposite direction:

$F=k*q_{electron}*q_{alpha}/r^2=9*10^9*1.6*10^{-19}*3.2*10^{-19}/(10^{-10})^2=4.61*10^{-8}N$

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2 years ago

A 70 kg man is walking at a speed of 2 m/s. What is his Kinetic Energy?

den301095 [7]

140 Jules. Is the correct answer

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3 years ago

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A car travels 2155.0m in 195.9s. What is the car's average speed?

inna [77]

Average speed of the car is 11 m/s

Explanation:

Speed is calculated by the rate of change of displacement.
It is given by the formula, Speed = Distance/Time
Here, distance = 2155 m and time = 195.9 s

Speed of the car = 2155/195.9 = 11 m/s

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3 years ago