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3 years ago

Describe two ways force and motion are at work as you make the trip from your house to school

Physics

1 answer:

Juliette [100K]3 years ago

5 0

Answer:

If your driving, the car is moving from your home to school, so the car is in motion. Using the pedals on a car, which gives it gas or the breaks, is force because it keeps the car moving, and or can stop it.

Explanation:

Motion is when an object moves from one place to another, while force is what causes an object to move or to stop moving.

I hope this helps and that I answered you question correctly!

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Alternating Current In Europe, the voltage of the alternating current coming through an electrical outlet can be modeled by the

stealth61 [152]

Answer:

$\frac{50}{\pi }$ Hz

Explanation:

In alternating current (AC) circuits, voltage (V) oscillates in a sine wave pattern and has a general equation as a function of time (t) as follows;

V(t) = V sin (ωt + Ф) -----------------(i)

Where;

V = amplitude value of the voltage

ω = angular frequency = 2 π f [f = cyclic frequency or simply, frequency]

Ф = phase difference between voltage and current.

Now,

From the question,

V(t) = 230 sin (100t) ---------------(ii)

By comparing equations (i) and (ii) the following holds;

V = 230

ω = 100

Ф = 0

But;

ω = 2 π f = 100

2 π f = 100 [divide both sides by 2]

π f = 50

f = $\frac{50}{\pi }$ Hz

Therefore, the frequency of the voltage is $\frac{50}{\pi }$ Hz

7 0

3 years ago

Which is a possible disadvantage of using flowing water to produce electricity?

Anastasy [175]

Drought
....................

3 0

4 years ago

What is the momentum of a 1,985-kg car going 32.5 m/s?

mojhsa [17]

Answer:

64512.5 m/kg

Explanation:

p=mv

p=1985 x 32.5

=64512.5

5 0

3 years ago

Which switch configuration creates a short circuit?

lara31 [8.8K]

I think the answer would be Switch 1 open; switches 2, 3, and 4 closed. It is letter D. This will happen when there is a low resistance and a high circuit so from the choices above, when two bulbs are open and one bulb is close, so there is a low resistance and high voltage.

6 0

3 years ago

How could you use the microscopes from this activity to determine

OlgaM077 [116]

Answer:

The magnification is a function of the lenses in the objective and the eyepiece, so the magnification of the two must be multiplied to obtain the total magnification possible. So, for example, if the objective lens was 4X and the eye piece lens was 10X, the total magnification would be 40. (4 x 10 = 40)

Explanation:

5 0

3 years ago