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Hoochie [10]
3 years ago
8

Give one example where friction is useful. Can someone feed me with correct answer pls c:

Physics
2 answers:
barxatty [35]3 years ago
6 0
Keeping traction on a race track
Leno4ka [110]3 years ago
4 0

Answer:

Friction is what holds your shoe to the ground. The friction present on the ice is very little, this is the reason why it is hard to walk on the slippery surface of the ice.

Explanation:

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By how much should a pair of light rays from a common source differ in distance traveled to produce destructive interference?
kodGreya [7K]
When you are equally distant from the speakers, their tones interfere constructively. ... <span>By how much should a pair of light rays from a common source differ in distance traveled to produce destructive interference</span>
4 0
4 years ago
A resistor is made out of a long wire having a length LLL. Each end of the wire is attached to a terminal of a battery providing
Reika [66]

Answer:

Explanation:

length of the wire = L

Potential difference = Vo

Current = I

new length of the wire, L' = L/2

As we know that the resistance of the wire is directly proportional to the length of the wire.

As the length is halved so that the resistance is also halved.

Resistance = Voltage / Current

V = I R

So, Voltage is constant and the resistance is halved so that the current is doubled.

6 0
3 years ago
A testable prediction is a(n) ______. Group of answer choices a. hypothesis b. experiment c. exercise d. variable
kicyunya [14]

Answer :A testable prediction is also known as a hypothesis.

Explanation: I think

7 0
3 years ago
Read 2 more answers
A 1 cm2 silicon solar cell has a saturation current of 10A and is illuminated with sunlight yielding a short-circuit photocurren
Yuki888 [10]

Answer:

The answer is "13% and 83%"

Explanation:

The highest power is generated for:

\to \frac{dP}{dV_a}=0= I_s(e^{\frac{V_m}{V_t}} -1)-I_{Ph} +\frac{V_m}{V_t} I_s e^{\frac{V_m}{V_t}}

 Where voltage, V_m, was its calculated maximum power wattage.  This same following transcend national stable coins the power output:

\to V_m=V_t \ In \frac{1+\frac{I_{ph}}{I_s}}{1+\frac{V_{m}}{V_t}}

The accompanying consecutive values of V_m are done utilizing iteration and an initial value of 0.5 V:

\to V_m = 0.5,\  0.542,\  0.540 \ V

Efficacy is equivalent to:

\eta = |\frac{V_{m} I_{m}}{p_{in}}| =\frac{0.54 \times 0.024}{0.1}=1.3\%

Currently, I_m was calculated with the formula of voltage V_m (4.6.1) as well as the sun is presumed to produce  100 \frac{mW}{cm^2} of power.

The fulfillment factor is equal to:

fill factor= \frac{V_{m} I_{m}}{V_{oc}I_{sc}}= \frac{0.54 \times 0.024}{0.62 \times 0.025}=83\%

where open circuit tension of equations (4.6.1) and I = 0. is calculated. The current is equal to the total current of the photo.

5 0
3 years ago
The city council is discussing whether or not to put fluoride in the city's water supply. Many other towns add it already, but y
earnstyle [38]

Answer:

For anyone who needs this answer in the future the answer is "The government agency responsible for monitoring water safety"

Explanation:

I took the quiz and got it right! It is that answer because the people who's profession is monitoring water safety would be the most reliable to ask this question. Hope this helps.

8 0
4 years ago
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