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4 years ago

40 POINTS PLEASE ANSWER ALL CORRECTLY

Physics

1 answer:

givi [52]4 years ago

7 0

Answer:

1. Electric current

2. In fact it is electrons that flow through a metallic conductor, and they flow from the negative terminal to the positive terminal

3. Series and parallel

4. Series

5. Parallel

8.A fuse is a small, thin conductor designed to melt and separate into two pieces for the purpose of breaking a circuit in the event of excessive current. A circuit breaker is a specially designed switch that automatically opens to interrupt circuit current in the event of an overcurrent condition.

10. The power of batteries in a circuit. The key functions of a battery and bulb in a circuit are explained. A battery is a source of energy which provides a push - a voltage - of energy to get the current flowing in a circuit. A bulb uses the electrical energy provided by the battery, but does not use current.

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URGENT. Please help.

exis [7]

1). c ... 2). d ... 3). a ... 4). d ... 5). c ... 6). a

7). b-mass ... c-m/s ... d-Newton's 1st ... e-Newton's 2nd

6 0

3 years ago

Which of the following has the largest kinetic energy?

Hoochie [10]

Option C,

Reason

Kinetic energy is proportional to the square of velocity. Thus the higher the velocity the higher will be the kinetic energy

K.E. dog = 1/2 x 10 x (0.44704 x 30)^2 m/s = 899.14 J

K.E. bullet = 1/2 x 0.02 x (0.44704 x 8000)^2 m/s = 127,878 J

5 0

4 years ago

The peak magnetic field strength in a residential microwave oven is 9. 2 x 10-5 t. what is the intensity of the microwave?

Alexandra [31]

The intensity of the microwave is 10.09 × 10⁵ W/m².

The unit of magnetic induction is the tesla (T). The magnetizing force, which induces the lines of force through a material, is called the field intensity, H (or H-field), and by convention has the units ampere per meter (A m−1) .

The portion of a material's magnetic field that results from an external current and is not intrinsic to the material itself is known as the magnetic field strength, also known as magnetic intensity or magnetic field intensity. It is measured in amperes per meter and represented as the vector H.

Magnetic Field, B = 9.2 × 10⁻⁵ T

$I_{avg} = \frac{CB_0^2}{2\mu _0}$

$= \frac{(2.998*10^8 m/s) (9.2 * 10^-^5 T)^2}{2 ( 4\pi * 10^-^7)}$

$= 10.09$ × $10^5 \frac{W}{m^2}$

Therefore, the intensity of the microwave is 10.09 × 10⁵ W/m².

Learn more about intensity here:

brainly.com/question/24319848

#SPJ4

7 0

2 years ago

a student throws three pencils into the trash can, only one lands in the can and the other hits the window each time? precise or

MAXImum [283]

I’d say precise because the student was aiming for the can and didn’t get it but they got the window each time

7 0

3 years ago

Help ?

Katyanochek1 [597]

I think it would be the one talking about if there’s water there would still be energy because water is used as a source of energy because there’s so much of it and it can be used again and again

8 0

3 years ago