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Verdich [7]
2 years ago
14

When an object experiences uniform circular motion the direction of the net force is?

Physics
1 answer:
guajiro [1.7K]2 years ago
3 0
In an uniform circular motion, the direction of the net force on the object is radially inward, passing through the center of the circle.
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Johanna is studying what happens to the energy as a ball rolls down a ramp. What is one form of energy that she is studying? gra
timofeeve [1]

Answer: gravitational potential energy

Explanation:

Gravitational potential energy is refered to as the potential energy that an object has due to its gravitational field, which in turn is being turned into a kinetic energy when there is a fall of such objects.

Since Johanna is studying what happens to the energy as a ball rolls down a ramp, the form of energy here is the gravitational potential energy.

3 0
2 years ago
Read 2 more answers
How much charge passes through a wire in 4.0 s if the current is 3.0 A?
NemiM [27]

Answer:

12 coloumbs

Explanation:

Q = IT

I= 3A, T=4s

Q = 3×4 =12coloumbs

6 0
2 years ago
Electronic flash unit cameras contain a capacitor for storing the energy used to produce the flash. In one such unit the flash l
Stolb23 [73]

Answer:

(A) 421 J energy stored in the capacitor for one flash.

(B) The value of capacitance is 0.0537 F

Explanation:

Given :

(A)

Time t = \frac{1}{675}

Average power P = 2.7 \times 10^{5} W

From power equation,

   P= \frac{E}{t}

So energy in one light is given by,

   E = Pt

  E = 2.7 \times 10^{5} \times \frac{1}{675}  = 400 J

Since efficiency is 95 % so we can write, energy stored in one flash,

E_{tot} = \frac{400}{0.95} = 421 J

(B)

From the formula of energy stored in capacitor,

 E = \frac{1}{2}C V^{2}

Where E = E_{tot} and V = 125 V

 C = \frac{2E}{V^{2} }

 C = \frac{2 \times 421}{15625}

 C = 0.0537 F

8 0
3 years ago
How long will it take for a car to travel 200 km if it has an average speed of 55 km/hr? ​
andreyandreev [35.5K]

Answer: Approximately 3.65 hours

Explanation:

55 km/h x 3.65 hrs = 200.75 Km/h

4 0
3 years ago
Generators use the magnetic field of which of the following to produce an electric current?
STatiana [176]
<span>Generators use the magnetic field of "Permanent Magnets"

In short, Your Answer would be Option D

Hope this helps!</span>
5 0
3 years ago
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