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3 years ago

Jake designed an experiment to demonstrate a solar eclipse. The steps of the experiment are listed below.

Physics

2 answers:

Kryger [21]3 years ago

6 0

Jake has a choice. Either stand facing the light bulb, or change the name of the demonstration to "lunar" eclipse.

Nikolay [14]3 years ago

4 0

A stand facing the light bulb because this doesn't represent a solar eclipse.

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A neutron is confined in a one-demensional potential box of width 5.0 x 10^-15 m. Calculate the minimum kinetic energy of the ne

kvv77 [185]

Answer:

$E_1=1.31\times 10^{-12}\ J$

Explanation:

Given that,

Width of a one dimensional potential box, $x=5\times 10^{-15}\ m$

The energy of a particle in one dimensional box is given by :

$E_n=\dfrac{n^2h^2}{8mx^2}$

h = Planck's constant

m = the mass of the proton

For minimum kinetic energy, n = 1

$E_1=\dfrac{(6.63\times 10^{-34})^2}{8\times 1.67\times 10^{-27}\times (5\times 10^{-15})^2}$

$E_1=1.31\times 10^{-12}\ J$

So, the minimum kinetic energy of the neutron is $1.31\times 10^{-12}\ J$ . Hence, this is the required solution.

8 0

3 years ago

Please help will give branliest

USPshnik [31]

Nabr is the answer bcoz in a chemical reaction reactants react to form new substances and according to your options NaBr should be the answer

6 0

3 years ago

When wile coyote is launched his velocity is 20 m/s. As a slightly underweight 10kg coyote, how far would the 400 N/m spring hav

Deffense [45]

Answer:

E = 1/2 m v^2 = 1/2 k x^2 equating KE of coyote and spring

x^2 = m v^2 / k = 10 kg * 20^2 m^2 / s^2 / 400 N / m

x^2 = 10 * 400 / 400 (kg m^3 / kg-m) = 10 m^2

x = 3.16 m

3 0

3 years ago

On a smooth horizontal floor, an object slides into a spring which is attached to another mass that is initially stationary. Whe

saul85 [17]

Answer: (E) Momentum and mechanical energy

Explanation:

The momentum and the mechanical energy is basically conserved during the given interaction process as the forces on the given system are in the form of internal nature and then the momentum are get conserved.

According to the given question, on the smooth floor when an object are slides by using the spring then the momentum and the mechanical energy are conserved.

The mechanical energy is the combination of both the kinetic and the potential energy that is used for doing some amount of work. Therefore, Option (E) is correct answer.

5 0

3 years ago

PLEASE HELP!! WILL REWARD!!

Fudgin [204]

$velocity = \frac{displacement}{time}$

Displacement measures how far it is from the starting point and the final location, which in this case is the distance between Honolulu and Los Angeles. The difference between distance and displacement is that distance measures how far the object actually travels. For example, the airplane may not fly in a straight line and it may have detours, making the distance much greater than the displacement.

On the other hand, the plane could fly at different speeds at different periods of time. It will be so much more complicated if we have to calculate it. That's why this question only asks you to calculate the average velocity of the plane, ie. $\frac{total displacement}{total time}$

So, we have

the required average velocity = $\frac{2558}{5}$

= 511.6 miles/hour

Hope this helps!

6 0

3 years ago

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