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sveta [45]
3 years ago
6

A collar A of mass m is moving with a speed v when it strikes an identical collar B that is at rest. Knowing that the coefficien

t of restitution between the collars is e. Identify the correct relation for the energy lost in the impact as a function of m, e, and v.

Physics
1 answer:
klio [65]3 years ago
8 0

Answer:

ΔK.E = mv²(1-e²)

Explanation:

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True or False: The northern & southern lights are caused by solar wind particles interacting with gases in our atmosphere.
NARA [144]

Answer:

False.

Explanation:

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What frequency is received by a person watching an oncoming ambulance moving at 110 km/h and emitting a steady 800-Hz sound from
Strike441 [17]

To develop this problem we will apply the concepts related to the Doppler effect. The frequency of sound perceive by observer changes from source emitting the sound. The frequency received by observer f_{obs} is more than the frequency emitted by the source. The expression to find the frequency received by the person is,

f_{obs} = f_s (\frac{v_w}{v_w-v_s})

f_s= Frequency of the source

v_w= Speed of sound

v_s= Speed of source

The velocity of the ambulance is

v_s = 119km/h (\frac{1000m}{1km})(\frac{1h}{3600s})

v_s = 30.55m/s

Replacing at the expression to frequency of observer we have,

f_{obs} = 800Hz(\frac{345m/s}{345m/s-30.55m/s})

f_{obs} = 878Hz

Therefore the frequency receive by observer is 878Hz

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3 years ago
What happens when someone is walking across the carpeted room then touches a metal door knob
igomit [66]
Static electricity travels to the door knob because of the friction caused by the feet on the carpet. the friction traveled through the person, to their hand, and to the door knob because it is the best conductor.
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Swimmers at the beach are tanning on towels. Which method of heat transfer is responsible for their tan? *
Free_Kalibri [48]

Answer:

ratiation

Explanation:

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3 years ago
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Slope in Mathematics means the inclination of a line

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