HELP THIS IS LATE How does the size and temperature of the Sun compare to other stars in the Milky Way galaxy?

SIZIF [17.4K]

D. It can be seen by the eye. I took this test. Hope this helped!

4 0

3 years ago

A 440 kg roller coaster car is going 26 m/s when it reaches the lowest point on the track. If the car started from rest at the t

yaroslaw [1]

34 m I just took the quiz

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3 years ago

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A loop of wire in the shape of a rectangle rotates with a frequency of 143 rotation per minute in an applied magnetic field of m

tatiyna

Answer:

1. e m fmax = 0.00598 Volt

2. Imax = 0.000854 Amp

Explanation:

1. Find the maximum induced emf.

e m fmax =

Given that e m fmax = N*A*B*w

N = 1

A = 2 cm^2 = 0.0002 m^2

f = 143 rotation per minute = 143/min

f = (143/min) * (1 min/60 sec) = 2.38/sec

w = 2Πf = 2 * Π * 2.38 = 14.95 rad/sec

B = 2T

e m fmax = N*A*B*w

e m fmax = 1 * 0.0002 * 2 * 14.95

e m fmax = 0.00598 Volt.

2. Find the maximum current through the bulb.

Imax = e m fmax / R

Where R is the total resistance in the circuit is 7 Ω.

Imax = 0.00598/7 = 0.000854 Amp.

Imax = 0.000854 Amp

6 0

3 years ago

A 0.877 mol sample of N2(g) initially at 298 K and 1.00 atm is held at constant volume while enough heat is applied to raise the

MissTica

Answer : The value of $q\text{ and }\Delta U$ is 286.2 J and 286.2 J respectively.

Explanation : Given,

Moles of sample = 0.877 mol

Change in temperature = 15.7 K

First we have to calculate the heat absorbed by the system.

Formula used :

$q=n\times c_v\times \Delta T$

where,

q = heat absorbed by the system = ?

n = moles of sample = 0.877 mol

$\Delta T$ = Change in temperature = 15.7 K

$c_v$ = heat capacity at constant volume of $N_2$ (diatomic molecule) = $\frac{5}{2}R$

R = gas constant = 8.314 J/mol.K

Now put all the given value in the above formula, we get:

$q=0.877mol\times \frac{5}{2}\times 8.314J/mol.K\times 15.7K$

$q=286.2J$

Now we have to calculate the change in internal energy of the system.

$\Delta U=q+w$

As we know that, work done is zero at constant volume. So,

$\Delta U=q=286.2J$

Therefore, the value of $q\text{ and }\Delta U$ is 286.2 J and 286.2 J respectively.

8 0

4 years ago

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The design process for technology often requires many failed solutions before developing a successful solution. What is the prim

Whitepunk [10]

A. The primary benefit of this process is each failed design provides more information for the next design.

<h3>What is design process for technology?</h3>

Design process for technology are the steps used to obtain a desired technological results.

Technological design process include:

identify a problem,
research the problem,
generate possible solutions,
select the best solution, create a model,
test the model,
refine and retest the model as needed,
communicate the final solution.

During technological design process, a failed result can provide a greater insights for the next step necessary for the end goal.

Thus, the primary benefit of this process is each failed design provides more information for the next design.

Learn more about technological design process here: brainly.com/question/20162876

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3 0

2 years ago