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DaniilM [7]
2 years ago
9

Two objects of masses m1 and m2, with m1 < m2, have equal kinetic energy. How do the magnitudes of their momenta compare

Physics
1 answer:
slavikrds [6]2 years ago
6 0

Answer:

every name on here is physics whyyyy but anyways happy news yr eve

Explanation:

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Two metal spheres are suspended from strings. The
nikdorinn [45]

Answer:

B. A repulsive force of 8.0*10^3 N.

Explanation:

As we know by Coulomb's law that the electrostatic force between two charges is given as

F = \frac{kq_1q_2}{r^2}

here we know that

q_1 = -2 \times 10^2 C

q_2 = -4 \times 10^{-8} C

r = 3.0 m

now we have

F = \frac{(9 \times 10^9)(2 \times 10^2)(4\times 10^{-8})}{3^2}

F = 8000 N

since both charges are similar charges so they will repel each other by the force we calculated above so correct answer will be

B. A repulsive force of 8.0*10^3 N.

3 0
3 years ago
Can u explain cause i dont understand
galben [10]

Answer:a

Explanation:

7 0
3 years ago
An unstable nucleus which has a tendency to spontaneously change its form with the emission of high-energy particles or photons
Pepsi [2]

Answer:Radioactive

Explanation:

The radioactive nucleus is the one which does not has enough binding energy to hold the nucleus in a stable state and thus radiates either electron or proton to become a stable element.

A radioactive element is formed when after billions of years such as uranium and thorium. The stability of the nucleus depends upon the opposition of attractive and repulsive force among the nucleus.

6 0
3 years ago
Read 2 more answers
Define conductor and insulator, including how the resistance is different in the two, and give at least one example of each.
Ratling [72]

Answer:

Those substances which can conduct electricity are called conductors, while those substances which don't conduct electricity are called insulators.

Resistance is the obstruction provided by the material through which the current passes,so since conductors conduct electricity and insulators don't,so the obstruction i.e resistance provided by the conductor must be less,while insulators being unable to conduct electricity,has very high resistance.

Example of conductor is copper

Example of insulator is plastic

8 0
2 years ago
What are the defining characteristics of matter
Ymorist [56]
Matter occupies space and has mass
6 0
3 years ago
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