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ycow [4]
3 years ago
11

What is the tendency of a material to oppose the flow of charge?

Physics
2 answers:
Salsk061 [2.6K]3 years ago
6 0
The answer is B. resistance
shtirl [24]3 years ago
5 0

Answer: Resistance

Explanation:

The tendency of a material to oppose flow of charges through it is known as resistance. It is an opposing force that acts against the electric current. It depends on the resistivity of the material, its length and diameter. It also depends on the temperature. With increase in temperature, resistance increases.

R = \frac{\rho l}{A}

It is measured in Ohms (Ω)

At constant voltage,

I \propto \frac{1}{R}

Thus, more resistance leads to low current value.

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Was the color orange named after the fruit or was the fruit named after the color ​
Marizza181 [45]

Answer:

The color orange is named after the fruit

8 0
3 years ago
What valves in this diagram need to be opened to allow liquid to flow?
-BARSIC- [3]
I'd guess at valve B. more information about the interesting question would help.
5 0
3 years ago
A cheetah starts from rest and accelerates after a gazelle at a rate of 6.5 meters per second2for 3.0 seconds. Calculate the che
Pepsi [2]

Answer:

the speed of the cheetah at the end of the 3 seconds is: 19.5 m/s

Explanation:

Let's use the equation that relates speed with acceleration:

vf = vi + a * t

where vf stands for final velocity, vi stands for initial velocity, a for acceleration, and t for the time acceleration is applied. Then, in our case we have:

vf = 0 + 6.5 (3)

vf = 19.5 m/s

6 0
3 years ago
Radio telescopes beam radio waves into space. To calculate the speed of the radio waves in space, which information, if any, is
Anastaziya [24]

Answer:

No more information is needed

Explanation:

Radio waves are electromagnetic energy, lower frequency forms of this type of energy that includes light and cosmic rays on the high frequency end that we are able to detect. So in free space (vacuum), radio waves travel at their fastest velocity, the “speed of light”. The reason for the quotation marks is because when light or radio waves are propagating through matter, we observe them traveling more slowly.

7 0
2 years ago
A 927 g mass is connected to a light spring of force constant 5 N/m that is free to oscillate on a horizontal, frictionless trac
liraira [26]

Answer:

2.7 s

Explanation:

The period of the motion of a massless loaded spring is given by

T = 2\pi\sqrt{\dfrac{m}{k}}

where m is the mass of the load and k is the force or spring constant.

Using values in the question and converting to appropriate units,

T = 2\pi\sqrt{\dfrac{927\times10^{-3}\text{ kg}}{5 \text{ N/m}}}= 2.7\text{ s}

5 0
3 years ago
Read 2 more answers
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