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emmainna [20.7K]
3 years ago
6

What is resistence?​

Physics
2 answers:
GarryVolchara [31]3 years ago
3 0
Resistance is where you try to stop something from happening or trying to stop something in general
Nutka1998 [239]3 years ago
3 0

Answer:

Resistance is a resistive force that goes against a force. Other names for it are : Friction or Drag.

Explanation: Say you're pushing a Box towards the right, you're applying force pushing it in that direction. Now, there's going to be a resistive force pushing on the box as well, moving left. But If you're talking about Electricity, that's another story, Pretty similar tho.

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A sprinter accelerates from rest to 10.0 m/s in 1.28 s . Part A Part complete What is her acceleration in m/s2? a a = 7.81 m/s2
Mashutka [201]

Explanation:

It is given that,

Initial speed of sprinter, u = 0

Final speed of sprinter, v = 10 m/s

Time taken, t = 1.28 s

a. We need to find the acceleration of sprinter. It can be calculated using first equation of motion as :

a=\dfrac{v-u}{t}

a=\dfrac{10\ m/s}{1.28\ s}

a=7.81\ m/s^2

b. Final speed of the sprinter, v = 36 km/h

Time, t = 0.000355 h

Acceleration, a=\dfrac{36}{0.000355}

a=101408.45\ km/h^2

Hence, this is the required solution.

3 0
4 years ago
What's the minimum Out PUT WORK<br> required to raise 14,0m3 of water 26.0m?
BartSMP [9]

Answer:

3.57 MJ

Explanation:

ASSUMING it's fresh water with density of 1000 kg/m³

W = ΔPE = mgΔh = 14.0(1000)(9.81)(26.0) = 3,570,840 J

Salt water would require more.

3 0
3 years ago
Are forces of attraction among the particles in all mater? true or false.
Luden [163]

Answer:

the answer is true

Explanation:

3 0
3 years ago
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The cheetah can run a distance of 275 m for 9 seconds. Calculate its speed.
AnnZ [28]

Answer: 110000

Explanation:

26/9=30.5555555556

30.5555555556 x 60=1833.33333333

110000 x 60=110000

4 0
3 years ago
What are the SI units for acceleration?<br> a. m/s<br> b. m/s/s<br> c. N<br> d. kg
ozzi
M/s^2 is the correct answer
7 0
3 years ago
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