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son4ous [18]
3 years ago
11

How do I solve this. I need this done ASAP

Physics
1 answer:
julia-pushkina [17]3 years ago
4 0

Answer:

i really don't know

Explanation:

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<span>C. As a metal comb is held near an object with a negative charge, the comb becomes charged.
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3 years ago
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1. The names of the compounds FeS, NaCl, NaOH, and Pb(CN)2 all end in the suffix A. -ite. B. -ic. C. -ide. D. -ate.
shtirl [24]
They all end with suffix "-ide"

In short, Your Answer would be Option C

Hope this helps!
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3 years ago
The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the pla
Vladimir [108]

Answer

given,

Radius of sphere = 6.38 × 10⁶ m

time  = 1 day = 86400 s

\omega = \dfrac{2\pi}{T}

\omega = \dfrac{2\pi}{ 86400 }

\omega = 7.272 \times 10^{-5}\ rad/s

a) at equator

v = R_E \omega

v = 6.38 \times 10^6\times 7.272 \times 10^{-5}

v = 464 m/s

acceleration of the person

a = \omega^2R_E

a = (7.272 \times 10^{-5})^2(6.38 \times 10^6)

a = 0.03374 m/s^2

b) at a latitude of 61.0 ° north of the equator.

R = R_E cos \theta

R = 6.38 \times 10^6\times cos 61^0

R = 3.093 \times 10^6 m

v = R \omega

v = 3.093 \times 10^6 \times 7.272 \times 10^{-5}

v = 225 m/s

acceleration of the person

a = \omega^2R_E

a = (7.272 \times 10^{-5})^2(3.093 \times 10^6 )

a = 0.01635 m/s^2

4 0
3 years ago
A radio wave has a frequency of 4.40 × 108 hz. what is the energy (in j) of one photon of this radiation? enter your answer in s
LiRa [457]
The energy of a single photon is given by
E=hf
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f is the frequency of the wave (of the photon)

In our problem, the radio wave has a frequency of f=4.40 \cdot 10^8 Hz, so if we put this value into the previous formula, we can find the energy of a single photon of this electromagnetic wave:
E=hf=(6.6 \cdot 10^{-34} Js)(4.40 \cdot 10^8 Hz)=2.9 \cdot 10^{-25} J
7 0
3 years ago
A refrigerator had a mass of 73 kg. What is the weight of the refrigerator in newtons
Sophie [7]

Answer:

715.4 N

Explanation:

W = mg

= 73 kg*9.8m/s²

= 715.4 N

3 0
2 years ago
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