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Scorpion4ik [409]
2 years ago
14

A mass M is hanging from a rope of length L and mass m. A student gives the mass a quick horizontal shake to set up a wave which

travels along the rope.Give an expression, in terms of the provided variables, for the speed of the wave at the bottom of the string. You may assume the mass of the rope m is much less than M
Physics
1 answer:
disa [49]2 years ago
4 0

Answer:

Explanation:

Expression for velocity of wave produced in a hanging wire can be given  as follows

Velocity v = \sqrt{\frac{T}{m} }

where T is tension in wire and m is mass of wire per unit length.

In the given case

T = Mg + mg

= Mg

neglecting weight of rope

mass of the rope per unit length

= m / L

Velocity of wave

= \sqrt{\frac{Mg}{\frac{m}{L} } }

= \sqrt{\frac{MgL}{m} }

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Answer:

C. My soup will cool down because of radiation.

Explanation:

Since, there is vacuum between hot soup and its outside wall, then heat can not flow through conduction and convection.

The heat then only flows through radiation.

Therefore, the soup will not cool down because of convection or conduction by because of radiation.

7 0
3 years ago
Ian’s school is exactly 6 blocks north of his house. What is his average velocity on a walk from home to school that takes him 1
choli [55]

Answer:

.5 units north

<em><u>or</u></em>

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Explanation:

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3 years ago
A 36-cm-circumference loop of wire is placed between the poles of an electromagnet. When a field of 0.76 T is switched on in a t
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Answer:

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5 0
3 years ago
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If you ride your bike 20 miles and it takes you 120 minutes,what is your average speed
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5 0
3 years ago
An alpha particle (a helium nucleus, consisting of two protons and two neutrons) has a radius of approximately 1.6 × 10-15 m. A
Snezhnost [94]

Answer:

9.96x10^-20 kg-m/s

Explanation:

Momentum p is the product of mass and velocity, i.e

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From this we calculate the speed as

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8 0
2 years ago
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