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3 years ago

8

A wave has a frequency of 80Hz, an amplitude of 6m, a wavelength of 4m as it travels down a 200m rope. What is the speed of the

wave?

1 answer:

qwelly [4]3 years ago

6 0

V = frequency * wavelength
v = 80 * 4
v = 320m/s

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4 years ago

ly charged particles are held 24 x 103m apart and then released from rest. The initial acceleration of the first particle is obs

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Part a)

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Part b)

$q_1 = q_2 = 5312.6 C$

Explanation:

Part a)

As we know that both charge particles will exert equal and opposite force on each other

so here the force on both the charges will be equal in magnitude

so we will have

$F = m_1a_1 = m_2a_2$

here we have

$6.3 \times 10^7(7) = m_2(9)$

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Part b)

Now for the force between two charges we can say

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

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$(6.3 \times 10^7)(7) = \frac{(9\times 10^9)q^2}{(24\times 10^3)^2}$

now we have

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3 0

3 years ago