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sergij07 [2.7K]
3 years ago
14

Two objects, A and B, each of mass o.22 kg, are moving at 0.34 m/s directly toward each other. What is the speed of Object A aft

er an elastic collosion
Physics
1 answer:
ki77a [65]3 years ago
6 0
Theoretically, if the objects have the same mass and are moving towards each other at a speed of 0.34m s^{-1}, after a perfectly elastic collision, the object A is supposed to move with the same velocity in the opposite direction.
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According to Wien's Law, how many times hotter is an object whose blackbody emission spectrum peaks in the blue, at a wave lengt
scZoUnD [109]

Answer:1.55 times

Explanation:

Given

First wavelength(\lambda _1)=450 nm

Second wavelength(\lambda _2)=700 nm

According wien's diplacement law

\lambda T=constant

where \lambda =wavelength

T=Temperature

Let T_1 and T_2 be the temperatures corresponding to \lambda _1 & \lambda _2 respectively.

\lambda _1\times T_1=\lambda _2\times T_2

\frac{T_1}{T_2}=\frac{\lambda _2}{\lambda _1}

\frac{T_1}{T_2}=\frac{700}{450}=1.55

Thus object with \lambda 450 nm is 1.55 times hotter than object with wavelength \lambda =700 nm

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3 years ago
Do all metals expand the same amount when heated??
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Answer:

No

Explanation:

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3 years ago
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When observing an object, you determine it is moving at a constant velocity and in a straight line. Which of these BEST describe
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The answer would be C. Hope this helps XD
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A 10 kg ball is traveling at the same speed as a 1 kg ball. Compared to the 10 kg ball, the 1 kg ball has
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The answer is the second option, or 1/10 the same momentum.

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A ball is thrown horizontally from the top of a building 21.8 m high. The ball strikes the ground at a point 101 m from the base
riadik2000 [5.3K]

Answer:

t=2.10 s

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Explanation:

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We know that

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now by putting the values

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Now in horizontal direction

x = u .t

101 = u x 2.1

u= 47.40 m/s

6 0
2 years ago
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