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Anastaziya [24]
3 years ago
15

A 10,000 kg traveling 15m/s strikes a second car which is at rest (not moving). The two stick together and move off with speed o

f 4.0 m/s Which type of collision is this?
Physics
1 answer:
Umnica [9.8K]3 years ago
6 0

Answer:

inelastic collision

Explanation:

An inelastic collision, in contrast to an elastic collision, is a collision in which kinetic energy is not conserved due to the action of internal friction. In collisions of macroscopic bodies, some kinetic energy is turned into vibrational energy of the atoms, causing a heating effect, and the bodies are deformed

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A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0 g steel wire. When the wind blows hard, the wire hums at it
kupik [55]

Answer: The mass of the sculpture is 11.8kg

Explanation:

Using the equation of fundamental frequency of a taut string.

f = (1/2L)*√(T/μ) .... (Eqn1)

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f= frequency in Hertz =80Hz

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M represent the mass of the substance (sculpture) =?

g= 9.8m/s^2

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μ= mass density = mass of string /Length of string

mass of string =5g=0.005kg

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Using (Eqn1)

80= 1/(2*0.9) √(T/0.0056)

144= √(T/0.0056)

Square both sides

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4 0
3 years ago
A ship sails west for 100km and then south for 100km. What is the displacement?
ale4655 [162]

\sf \vec{w}=100

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For displacement apply Pythagorean theorem

\\ \rm\hookrightarrow 100^2+100^2

\\ \rm\hookrightarrow 10000+10000

\\ \rm\hookrightarrow 20000

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