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3 years ago

Which of the following beach conditions would most likely indicate the presence of low-energy waves

Physics

2 answers:

motikmotik3 years ago

7 0

My guess would be smaller pieces of sediment.

I hope this helps! :)

nekit [7.7K]3 years ago

4 0

Low Winds Probabaly

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What’s the answer? Will give brainliest

Allushta [10]

The two nuclei are Krypton-89 and Barium- 144

Explanation:

The splitting nuclei is a Uranium-235:

mass number = 235

atomic number = 92

We can write the atom as ²³⁵₉₂U

From the key, a neutron particle collides with the Uranium nuclei. The neutron is represented as:

¹₀n

Writing the expression on the left hand side:

²³⁵₉₂U + ¹₀n

In a fission reaction, a heavy nucleus disintegrates into 2 lighter nuclei and several neutrons with the release of a large amount of energy.

NOTE: In every nuclear reaction, the mass number and atomic number is always conserved.

Problem: To find the unknown nuclei on the right hand side;

Known:

3 neutrons;

²³⁵₉₂U + ¹₀n → 3 ¹₀n + unknown nuclei

To balance the product side,

mass number = (235+1) - (3x1) = 233

Atomic number = 92 -3 = 89

from the options given, Krypton and plutonium will fit this:

Given information of Kr:

atomic number = 36

neutron number = 53

Mass number = atomic number + neutron number = 89

Given information of Ba:

atomic number = 56

neutron number = 88

mass number = 56+88 = 144

Complete equation:

²³⁵₉₂U + ¹₀n → 3 ¹₀n + ¹⁴⁴₅₆Ba + ⁸⁹₃₆Kr

Learn more:

nuclear equation brainly.com/question/10094982

#learnwithBrainly

5 0

3 years ago

For what value of the ratio r/a of plate radius to separation between the plates does the electric field at the point x=a/2 on t

SIZIF [17.4K]

solution:

E\delta =\frac{R}{\epsilon0}(1-\frac{A}{\sqrt{4R^{2}}-ac}

=\frac{R}{\epsilon0}(1-\frac{1}{\sqrt{4r^{2}/^{_a{2}}+1}})

=\frac{R}{\epsilon0}(1-\frac{1}{\sqrt{4x^2+1}})

x=\frac{r}{a}

infinite case,

Ei=\frac{r}{\epsilon0}

\therefore e\delta =ei(1-\frac{1}{\sqrt{4x^{2}+1}})

we have to find x when,

ei-e\delta =1% ,y=ei=1/100 ei

or,ei-ei+\frac{ei}{\sqrt{4x^2+1}} = 1/100ei

\frac{1}{\sqrt{4x^2+1}}=\frac{1}{100}

4x^2+1 =10^4

x=\frac{\sqrt{\frac{10^4-1}{4}}}=49.99\approx 50

\therefore \frac{r}{a}\approx 50

6 0

3 years ago

Which best describes the magnitude of the velocity of the car?

Vlad [161]

I think 30 as that’s usually average speed

6 0

3 years ago

Which statements about braking a car are true? A)The greater the kinetic energy of a car, the longer it takes for the car to sto

NikAS [45]

Answer:

option c

Explanation:

Kinetic energy is due to the speed of a body.

$K.E = \frac{1}{2}mv^2$

When speed is doubled, the kinetic energy is quadruple.

From third equation of motion, braking distance is also proportional to square of speed. Thus, when speed is doubled, the braking distance is quadruple.

Thus, option c is correct.

3 0

3 years ago

Read 2 more answers

Which is developed during the process of technological design?

lbvjy [14]

Answer: SOLUTION

Explanation: A technological design is often adopted when there is a need to solve or find solution to a certain or identified problem. The technological design process is often required in other to develop technologically driven products which is capable of providing solution to a perceived problem. The steps involved includes;

Identifying the problem at hand, carrying out further and thorough research on them, proferring possible solutions out of which the best possible approach is selected. Then the solution is modeled, the model is tested and refinements are made depending on outcome of the test. Testing will have to be repeated upon refinement of the model before the final outcut is communicated.

7 0

4 years ago

Read 2 more answers