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Fantom [35]
4 years ago
15

Susan is making an electromagnet in her science class today. First, she takes a nail and winds coils of copper wire around it th

en, she
connects the ends of the wire to a battery. She uses the electromagnet to pick up paper clips, but the paper clips drop when she
disconnects the wires from the battery, Which kind of energy does Susan change into magnetic energy in this project
chemical
electrical
heat
light
Physics
2 answers:
matrenka [14]4 years ago
5 0

Answer:

Electrical

Explanation:

She uses a battery, which is electrical.

It doesn't operate using chemicals, heat, or light

Pie4 years ago
4 0

Answer:

it's chemical and electrical because she uses her circuit in which the both forms take place...........so according to me the most probably the answer is electrical.....

Explanation:

because she uses her circuit in which the both forms take place...........so according to me the most probably the answer is electrical.....

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The open-circuit voltage of a car battery is measured to be 12 V. During engine startup, the battery delivers 10 A to the starte
dmitriy555 [2]

Answer:

- the Thevenin equivalent circuit for the battery is uploaded below

- the battery delivered 117 watts of power to the starter motor

Explanation:

Given the data in the equation

diagram of the Thevenin equivalent circuit for the battery is uploaded below.

Current I = 10 A

Voltage 1 = 12 V

voltage 2 = 11.7 v

R = (V1 - V2) / I

R = (12-11.7)/10

R = 0.3 / 10

R = 0.03Ω

Thevenin equivalent circuit

R_{L} = V2 / I = 11.7 / 10

R_{L} = 1.17Ω

so, power delivered to the starter motor will be;

p = (V2)² / R_{L}

P = ( 11.7 V )² / 1.17Ω

p =  136.89 / 1.17

p =  117 watts

Therefore, the battery delivered 117 watts of power to the starter motor

8 0
3 years ago
Which of the following is NOT accelerating?
ivolga24 [154]
I would say the answer to your question is A Ferris wheel turning at a constant speed. The reasoning behind this answer is the fact that traveling in a constant direction at a constant speed is not accelerating. The Ferris wheel is the only option that fits this description. The last option would be incorrect due to independent causes such as speed limit changes as well as turns and stops on the highway.
7 0
3 years ago
A photon has a wavelength of 500nm what is the energy associated
grigory [225]
Given: Plank's constant h = 6.626 x 10⁻³⁴ J.s   

           Speed of light c = 2.998 x 10⁸ m/s

            Wavelength  λ = 500 nm  convert to meter = 5 x 10⁻⁷ m

Required: Energy E =?

Formula: E = hc/λ

               E = (6.626 X 10⁻³⁴ J.s)(2.998 X 10⁸ m/s)/5 x 10⁻⁷ m

               E = 3.97 X 10⁻¹⁹ J  or in termS of electron volt

               E = 2.48 eV

               
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3 years ago
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Leona [35]
The one one of the times
4 0
3 years ago
The horizontal motion of a launched projectile affects its vertical motion.
Talja [164]

The horizontal motion of a launched projectile affects its vertical motion is false

Answer: False

<u>Explanation: </u>

As the trajectory falls on a plane, all the components like displacement, velocity can be classified in two components termed as horizontal and vertical component.

In a projectile motion, the horizontal components of displacement and velocity remains constant and there is change only in the vertical component of displacement and velocity.

Both components are not dependent to each other. So, the horizontal motions of a launched projectile does not affect its vertical motion.

8 0
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