3 years ago

What is the weak nuclear force?

Physics

1 answer:

Norma-Jean [14]3 years ago

5 0

Answer:

Explanation:

1. would be the strong nuclear force.

3. would be the electromagnetic force.

4. would be gravity.

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Which list contains only objects that orbit the sun in our solar system?

Andre45 [30]

The answer would be C.

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4 years ago

Do ocean currents affect aquatic life? What do you think and why?

4vir4ik [10]

Answer: By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life.

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3 years ago

Suppose the Earth's magnetic field at the equator has magnitude 0.00005 T and a northerly direction at all points. How fast must

sasho [114]

Answer:

Velocity will be $v=1.291\times 10^8m/sec$

Explanation:

We have given magnetic field B = 0.00005 T

Mass m = 238 U

We know that $1u=1.66\times 10^{-27}kg$

So 238 U $=238\times 1.66\times 10^{-27}=395.08\times 10^{-27}kg$

Radius $=R+1.44=6378+1.44=6379.44KM$

We know that magnetic force is given by

$F=qvB$ which is equal to the centripetal force

So $qvB=\frac{mv^2}{r}$

$1.6\times 10^{-19}\times v\times 0.00005=\frac{395.08\times 10^{-27}v^2}{6379.44}$

$v=1.291\times 10^8m/sec$

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3 years ago

Tim mentions that infrared radiation can be used to take special pictures called thermographs. "Graph" means "image." What can y

nydimaria [60]

prefix thermo means heat

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3 years ago

The energy transferred to the water in 100 seconds was 155 000 J. specific heat capacity of water = 4200 J/kg °C

skelet666 [1.2K]

Answer:

0.37 kg

Explanation:

I'm not a professor myself, but this is how I worked it out:

using the graph, after 100 seconds, the temperature is 100 degrees Celsius.

If we now substitute everything into the specific heat capacity equation, making the mass "m", we would come up with:

4200 = 155000/(m x 100)

If we rearrange and solve for m, we get 0.37 kg.

I'm not sure if I have done this correctly, feel free to correct me.

Hope this helps!

4 0

3 years ago

Read 2 more answers