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mixas84 [53]
4 years ago
12

Q¹=0,07Mc Q²=2C r=1,08 cm F=.......?

Physics
1 answer:
Nostrana [21]4 years ago
5 0
The force (F) of attraction or repulsion between two point charges (Q1 and Q2) is given by the following rule:
F = <span>(k * q1 * q2) / (r^2)  where:
</span>q1 and q2 are the charges
k is coulomb's constant = 9 x 10^9<span> N. m</span>2/ C<span>2
</span>r is the distance between the two charges.

Applying the givens in the mentioned equation, we find that:
F = (9 x 10^9<span> x 0.07 x 10^6 x 2) / (0.0108)^2 = 1.08 x 10^19 n </span> 
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Answer:

13.8 N

Explanation:

Pressure on the one end of the hydraulic system = Pressure on the other end

Pressure = Force / Area where Force is in Newton, area is in m²

so Force of one end (F1) / area of that end = force of the other end (F2) / area of that end

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cross multiply

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5 0
3 years ago
Which is the correct unit for electrical power?<br> a) amp<br> b) volt<br> c) watt<br> d) coulomb
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T<span>he correct unit for electrical power is "watt".
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8 0
3 years ago
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dimaraw [331]

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A or C

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4 0
3 years ago
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If the pitched ball was traveling 77 mph before stanton's bat hit it and 120 mph after his bat hit it, by what amount did the sp
Mice21 [21]

here we will use the concept of Newton's III law

as per Newton's III law the impulse given to the ball is same as the impulse lost by the bat

So here we will say

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given that

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now from above equation

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3 years ago
In a certain city, electricity costs $0.20 per kw·h. what is the annual cost for electricity to power a lamp-post for 8.00 hours
UNO [17]

Part a)

per day electricity power consumed when 100 W bulb is used for 8 hours

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E = 365 * 800 = 292 kWH

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now the cost will be given

cost = 0.20 * 73 = $ 14.6

8 0
3 years ago
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