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VashaNatasha [74]
3 years ago
7

If a charge at 60c flow in a conductor for 30 second then the current that flow in a conductor is​

Physics
1 answer:
saw5 [17]3 years ago
3 0

Explanation:

<h3>Given</h3>

- Charge = 60c

time = 30 sec

<h3>To find -</h3>

current

<h3>Solution </h3>

Current = Charge/time

I = V/T

I = 60/30

I = 2 ampere

More to know -

I = Current

V = Charge

T = Time

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An elevator supported by a single cable descends a shaft at a constant speed. The only forces acting on the elevator are the ten
Gala2k [10]

Answer:

E) The net work done by the two forces is zero joules.

Explanation:

As the elevator is moving at a constant speed, it is the same as being stationary. The tension in the cable perfectly balances the gravitational force. Work done by gravity = mgh

Work done by the tension = -Th

where, T = tension force. The negative sign comes as the direction of T is opposite to the direction of g. As the elevator moves at a constant speed, the magnitude of the two forces must be equal. Therefore, the total work done,

W = (mg - T)h = 0

3 0
3 years ago
A 1200-kg ore cart is rolling at 10.8 m/s across a flat friction-free surface. a crane suddenly drops of ore vertically into the
Andre45 [30]
The value of the final speed depends on the mass of the ore.

Let's call m the mass of the ore. We can solve the exercise by requiring the conservation of momentum, which must be the same before and after the ore is loaded.

Initially, there is only the cart, so the momentum is
p=Mv=(1200 kg)(10.8 m/s)=12960 kg m/s
After the ore is loaded, the new mass will be (1200 kg+m), and the new speed is v_f. The momentum p is conserved, so it is still 12960 kg m/s. Therefore, we have
p=12960 kg m/s =(1200 kg+m)v_f
and so the final speed is
v_f =  \frac{12960 kg m/s}{1200 kg +m}
5 0
3 years ago
Before the widespread use of computers, how was the epicenter of an earthquake determined?
Nezavi [6.7K]
 Data was used from three different stations. Where their data overlapped was where the epicenter was located.
it is called triangulation 
7 0
3 years ago
Read 2 more answers
Leverrier predicted that an invisible planet was pulling the planet Uranus off its predicted course around the sun. Likewise, hu
Alexandra [31]

Human beings are pulled off course as a result of the invisible forces of the <u>unconscious.</u>

According to Leverrier, he stated that an invisible planet was pulling the planet Uranus off its predicted course around the sun.

In such a way, human beings are pulled off course by the invisible forces of their unconscious minds. The unconscious minds of people control the thoughts of people.

Read related link on:

brainly.com/question/25588203

3 0
3 years ago
Describe succinctly the relationship between how far a galaxy is from us (its distance), versus how fast it is moving.
Eva8 [605]

Answer:

Distance is directly proportional to the velocity

Explanation:

In 1929, Edwin Hubble's wrote an article that talked about relationship between the distance and recession speed/velocity of galaxies which led to what is known as the Hubble Law. This law states that galaxies are moving away from the earth at velocities proportional to their distances.

Thus is written as;

v = H_o•d

Where;

v is velocity

d is distance

H_o is Hubble's constant rate of cosmic expansion.

He came to this conclusion by generating a graph known as Hubble's classic graph which was a graph of observed velocity vs distance for nearby galaxies.

7 0
3 years ago
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