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notsponge [240]
3 years ago
7

Which is the transfer of thermal energy in matter with no overall transfer of matter? If you copy the answer from the last quest

ion your wrong and you will be reported.
conduction
radiation
insulation
convection
Physics
2 answers:
kogti [31]3 years ago
8 0

I believe radiation is the correct answer

zzz [600]3 years ago
6 0

the answer is radiation

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A motorbike accelerates from 15m/s to 25m/s in 15 seconds.
RSB [31]

distance traveled by a uniformly accelerated bike is given as

d = \frac{v_f + v_i}{2} (t)

here we know that

v_f = 25 m/s

v_i = 15 m/s

t = 15 s

now we will have from above equation

d = \frac{15 + 25}{2} (15)

d = 20 (15) = 300 m

so it will cover the total distance of 300 m

5 0
3 years ago
How do I answer number 4? Please help x
4vir4ik [10]

Explanation:

Efficiency is the ratio of energy out to energy in.

e = Eout / Ein

0.52 = 800 J / Ein

Ein ≈ 1538 J

Round as needed.

8 0
3 years ago
Noah drops a rock with a density of 1.73 g/cm3 into a pond. Will the rock float or sink? Explain your answer.
wel

Answer:

Sink

Explanation:

The normal density of water is 1 g/cm3.  Since the rock has a higher density of 1.72g/cm3, it will sink in water.

5 0
3 years ago
Which of these statements best describes the difference between electromagnetic and gravitational forces in the solar system?
kodGreya [7K]
It's B-<span>Electromagnetic forces are stronger than gravitational forces</span>
5 0
3 years ago
Read 2 more answers
Two uniform solid spheres, A and B have the same mass. The radius of sphere B is twice that of sphere A. The axis of rotation pa
Svetach [21]

Answer:

Sphere B has 4 times more inertia than sphere A.

Explanation:

Inertia on a Solid sphere is given by:

I = 2/5*M*R^2

For this problem:

ma = mb = M

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With these values:

Ia = 2/5*M*Ra^2

Ib = 2/5*M*(2*Ra)^2 = 4* (2/5*M*Ra^2)

As you can see, Ib = 4 * Ia.

4 0
3 years ago
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