2 years ago

If two forces act on an object, what is the relationship between the two forces? (pls explain)

Physics

1 answer:

Westkost [7]2 years ago

3 0

Answer:

B. The larger force causes more acceleration than the smaller.

Explanation:

For example, let me use a child and a grown up. The child represents the smaller force while the grown up represents the larger force. If they are pushing the same object of different sides, obviously the side with the grown up will push and move to the side of the child because it is stronger.

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Phantasy [73]

Answer:

emf=-0.035V

Explanation:

this problem can be solved with the Lenz's law:

$emf=-\frac{\Delta \Phi_{B}}{\Delta t}$

where PhiB is the magnetic flux. In this case we have

$\Delta \Phi_{B}=B(A_1-A_2)$

due to the magnetic field is constant. A is the area of the circular loop. Hence

$\Delta \Phi_{B}=(5*10^{-3}T)(\pi(3m)^2-\pi(1.5m)^2)=0.106Tm^2$

Finally

$emf=-\frac{0.106Tm^2}{3s}=-0.035V$

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3 years ago

When an electron in a certain excited energy level in a one-dimensional box of length 2.00 Å makes a transition to the ground st

Fiesta28 [93]

Answer:

Calculate the wavelength associated with an electron with energy 2000 eV.

Sol: E = 2000 eV = 2000 × 1.6 × 10–19 J

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3 years ago

A radio signal has a frequency of 1.023 x 108 HZ. If the speed of the signal in air is 2.997 x 108m/s, what is the wavelength of

Sladkaya [172]

Answer:

2.93 m (which agrees with answer "C" on the list)

Explanation:

Recall that the speed of the wave equals the product of the wave's length times its frequency. Therefore, the wavelength is going to be the quotient of the speed of the signal divided its frequency:

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Answer: The correct answer is the weight of the wood.

Explanation:

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You can pull more things at once

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