What do solar cells convert into electricity? wind SERE water sunlight plants

Consider two gratings with the same slit separation. The only difference between the two gratings is that one grating has 5 slit

lora16 [44]

Answer:

b. Both the gratings will produce the same separation of peaks.

e. The grating with 10 slits will produce better-defined(narrower) peaks.

6 0

4 years ago

Which of the following statements are true for electric field lines? Check all that apply. Check all that apply. Electric field

Scilla [17]

Answer:

Electric field lines point away from positive charges and toward negative charges. True

Electric field lines are continuous; they do not have a beginning or an ending. False

Electric field lines can never intersect. True

Electric field lines are close together in regions of space where the magnitude the electric field is weak and are father apart where it is strong. False

At every point in space, the electric field vector at that point is tangent to the electric field line through that point. True

Explanation:

Electric field lines point away from positive charges and toward negative charges. Always the field lines go to negative charges and leave from positive charges.

Electric field lines are continuous; they do not have a beginning or an ending. False

Because the field lines starts at positive charges and ends in negative charges.

Electric field lines can never intersect. True

It can not intercept the field lines because in that point the the field would have two directions. Besides, in that point the real value of the field should be found adding both field lines.

Electric field lines are close together in regions of space where the magnitude the electric field is weak and are father apart where it is strong. False

This fact is opposite to that so the regions of space where the magnitude the electric field is weak the lines are father apart and where the field is strong the lines are close together.

At every point in space, the electric field vector at that point is tangent to the electric field line through that point. True

This statement correspond to the definition of the field line.

5 0

3 years ago

A student runs 120 meters in 10 seconds. What is their speed? Question 6 options: 1.2 m/s 1200 m/s 120 m/s 12 m/s

aleksklad [387]

12m/s

Explanation:

Given parameters:

Distance run by student = 120 meters

Time = 10 seconds

Unknown:

Speed = ?

Solution:

Speed is the rate of change of distance with time:

Speed = $\frac{distance}{time}$

Now input the parameters:

Speed = $\frac{120}{10}$ = 12m/s

Learn more:

Speed brainly.com/question/4581270

#learnwithBrainly

5 0

4 years ago

A rocket takes off against the force of gravity. Consider this a non-isolated system. Derive the rocket equation formula relatin

Zielflug [23.3K]

Answer:

Explanation:

The solution of the question has been put in attachment.

8 0

3 years ago

Part a a calorimeter consists of an aluminum cup inside of an insulated container. The cup is weighed on a top-loading balance a

vovikov84 [41]

The change in heat q for the aluminum cup is 141 J.

<h3>What is Specific heat?</h3>

A substance's heat capacity is the amount of heat needed to increase its overall temperature by one degree. The heat capacity is known as the specific heat capacity or the specific heat if the substance's mass is unity.

change in heat -

The amount of heat Q that is transported to create a temperature shift depends on the substance and phase involved, the mass of the system, and the magnitude of the temperature change. (A) The temperature change and the amount of heat transported are directly inversely related.

The answer's sign dig is determined by a calculation's lowest sign digits.

The solution will need 3 digits because the temperatures are provided with 3 significant digits and the specified heat has 3 significant digits (the mass has 4 significant digits).

31.91 g * 0.903 J/g-C * (26.1 - 21.2 C) = 141 J

to learn more about Specific Heat go to - brainly.com/question/21406849

#SPJ4

5 0

2 years ago