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lianna [129]
3 years ago
11

The Work-Energy Principle states that work is equal to the

Physics
1 answer:
givi [52]3 years ago
8 0

Answer:

the workenergy principle is measured in joules

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U235 + n → Xe134 + Sr100 + 2n
xenn [34]
Nuclear fission formula by the looks of it. Possibly how Professor Lisa Meitner realised that she had split the atomic nucleus. The Xenon and the Strontium (Xe and Sr) would presumably show up in a radio chemical assaying test at her university. 
A few years later, Professor J Robert Oppenheimer watched a nuclear test somewhere near Los Alamos, US and lamented "I am become death, the destroyer of worlds". Shortly thereafter, Hiroshima and Nagasaki were razed to the ground and annihilated by nuclear bombs. Professor Meitner, probably inadvertently, had got the keys to the doors to "nuclear hell", and JRO ended up turning them. Something like that maybe, and a very harrowing and tumultuous period in human history.
Note in the fission equation, that out come two neutrons. They go off and produce a similar fission in another U235 nucleus into a chain reaction which, i not moderated by, say, Boron, can end up as a "mushroom cloud".
8 0
3 years ago
An automobile with an initial speed of 5.13 m/s accelerates uniformly at the rate of 3.0 m/s2. Find the final speed of the car a
Digiron [165]

Answer:

Final velocity v=19.83 m/sec

Explanation:

We have given initial velocity u =5.13 m/sexc

Acceleration of automobile a=3m/sec^2

Time t =4.9 sec

We have to find the final velocity v

According to first law of motion v = u+at ,here v is the final velocity , a is acceleration and t is time

So v=5.13+3\times 4.9=19.83m/sec

So the final velocity is 19.83 m/sec

7 0
3 years ago
When bouncing a ball, the bouncing motion results in the ball ____________.
yan [13]

Answer:

B) changing position

Explanation:

When a ball bounces to the ground it hits the ground with some energy. The amount of energy with which it hits the ground is kinetic energy. When it comes in the contact with the ground kinetic energy gets converted into potential energy. This potential energy again gets converted into kinetic energy and balls moves again from the ground and bounces multiple times. So, due to multiple bounce the position of the ball changes.

Thus, When bouncing a ball, the bouncing motion results in the ball changing position.

6 0
3 years ago
Read 2 more answers
Find the frequency if the period is 15 us.
Sav [38]

Answer:

The frequency is 0.667× 10^{6} Hz.

Explanation:

  1. Period is defined as the time taken by any element to attempt one complete oscillatory motion in one second.
  2. Frequency is the number of complete oscillations made in one second.
  • Frequency and period are inversely proportional to each other.
  • In mathematical term: frequency = \frac{1}{period}.
  • As we are given, period = 15×10^{-6} s.
  • We can easily calculate frequency as: f\\= \frac{1}{15. 10^{-6} }
  • So frequency is f= 0.667× 10^{6} Hz.
6 0
3 years ago
What happens to a falling object when the force of air resistance equals the force of gravity?
12345 [234]

Answer:

A falling object will continue to accelerate to higher speeds until they encounter an amount of air resistance that is equal to their weight.

Explanation:

7 0
3 years ago
Read 2 more answers
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