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3 years ago

Which factors affect the flow of electric charge? select two options. Voltage ampere ohm resistance volt.

Physics

1 answer:

tatiyna3 years ago

6 0

According to Ohm's law: V = IR

The rate of flow of charges will depend on the voltage supplied and the resistance in the wire.

ELECTRIC CHARGE

Current can be defined as the rate of flow of charges. Where charge is the product of current and time. This means that electric charge is proportional to electric current. The current in a conducting wire depends on;

Length of the wire

Cross sectional area of the wire

Nature of the wire

The voltage supplied

The two factors that can affect the flow of electric charge in the given options are voltage and resistance

Because according to Ohm's law: V = IR

The rate of flow of charges will depend on the voltage supplied and the resistance in the wire.

Learn more about Electric Charge here: brainly.com/question/26100412

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Attached here is the question:

ICE Princess25 [194]

Answer:

t = 6 [s]

Explanation:

In order to solve this problem we must first use this equation of kinematics.

$v_{f}^{2}=v_{o}^{2} +2*a*x$

where:

Vf = final velocity = 0 (the car comes to rest)

Vo = initial velocity = 72 [km/h]

a = acceleration [m/s²]

x = distance = 60 [m]

First we must convert the velocity from kilometers per hour to meters per second.

$72 [\frac{km}{h}]*\frac{1000m}{1km} *\frac{1h}{3600s} =20 [m/s]$

$0=(20)^{2} -2*a*60\\400 = 120*a\\a=3.33[m/s^{2} ]$

Now using this other equation of kinematics.

$v_{f}=v_{o}-a*t$

0 = 20-3.33*t

t = 6[s]

5 0

4 years ago

A chemical hazard symbol means you should not inhale fumes or let the chemicals contact your skin.

pantera1 [17]

The answer is true
hope this helps : )

4 0

3 years ago

Give an example of a compound machine. Explain how at least two simple machines are part of the complex machine. Thank you !!

kaheart [24]

A compound machine is a combination of at least two simple machines. Simple machines can be a lever, a wedge, a while + axle, an incline plane, a pulley, and a screw.

There are many examples of compound machines. One of them is a showel that combines a wedge (the scoop part of shovel) and a lever (the handle to transfer the force to lift).

A much more complex compound machine is a bicycle, comprising simple machines ranging from wheels and axles, to screws, and levers (think of the pedals).

5 0

3 years ago

Tom has built a large slingshot, but it is not working quite right. He thinks he can model the slingshot like an ideal spring wi

Amiraneli [1.4K]

Answer:

8.9

Explanation:

We can start by calculating the initial elastic potential energy of the spring. This is given by:

$U=\frac{1}{2}kx^2$ (1)

where

k = 35.0 N/m is the initial spring constant

x = 0.375 m is the compression of the spring

Solving the equation,

$U=\frac{1}{2}(35.0)(0.375)^2=2.5 J$

Later, the professor told the student that he needs an elastic potential energy of

U' = 22.0 J

to achieve his goal. Assuming that the compression of the spring will remain the same, this means that we can calculate the new spring constant that is needed to achieve this energy, by solving eq.(1) for k:

$k'=\frac{2U'}{x^2}=\frac{2(22.0)}{0.375^2}=313 N/m$

Therefore, Tom needs to increase the spring constant by a factor:

$\frac{k'}{k}=\frac{313}{35}=8.9$

7 0

4 years ago

A small cart travels 20 meters to the right in 10 seconds calculate the velocity

stira [4]

The velocity would be 10

3 0

3 years ago