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3 years ago

In 3.0 seconds, a wave generator produces 15 pulses that spread over a distance of 45 centimeters. Calculate its period.

Physics

1 answer:

melisa1 [442]3 years ago

4 0

Period = (time) / (number of pulses)

= (3 sec) / (15 pulses)

= 0.2 sec/pulse

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Acceleration question plz help

andrezito [222]

For #5 It's helpful to draw a free body diagram so you know which way the forces are acting on the block.

the weight mg is acting downwards, and you need to find the vertical and horizontal components of mg using sin and cosine. so do 15x9.8xsin40 which is the force. Assuming no friction, this is the only force acting on the block, as the forces on the vertical plane cancel out i.e the normal force and weight of the block.

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As we know by Gauss's law that

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so for line charge the gaussian surface is cylindrical in shape

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3 years ago

A force of 1 N is the only horizontal force exerted on a block, and the horizontal acceleration of the block is

SVEN [57.7K]

The mass of the first block will be three times the mass of the second block.

According to Newton's second law of motion, the force acting on a body is directly proportional to the acceleration as shown;

$F\ \alpha \ a$

$F = ma$

F is the acting force

m is the mass

a is the acceleration of the body

Given the following parameters

Constant force F = 1N

For the first block with the acceleration of "a"

1 = m₁a

a = m₁/1

m₁ = a .................1

For the second block, acceleration is thrice that of the first. This means;

F = m(3a)

1 = 3ma

$m_2=\frac{1}{3a}$ ..........................2

Divide both equations

$\frac{m_1}{m_2} =\frac{a}{(\frac{1}{3a} )}\\\frac{m_1}{m_2} = 3\\m_1 = 3m_2$

From the calculation, we can conclude that the mass of the first block will be three times the mass of the second block.

Learn more here: brainly.com/question/19030143

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Answer:

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Explanation:

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