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patriot [66]
3 years ago
6

A lever allows a 35 N load to be lifted with a force of 7 N. What is the mechanical advantage of the lever?

Physics
1 answer:
Alex17521 [72]3 years ago
7 0

Answer: MA = 5

Explanation:

The mechanical advantage is the ratio of the load to the effort. It is a measure of how efficient a simple machine is.

MA = Load/Effort

Load = 35N

Effort = 7N

Therefore

MA = 35N/7N

MA = 5

Since the mechanical advantage is more than 1, the lever is highly efficient as it allows a very small effort to overcome 5 times its magnitude of load.

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Katyanochek1 [597]

Answer:

Weight (mass) = 16.5 kg

velocity = 0 m/a

acceleration =2.6 m/s^2

displacement = 13.2m

now,

acceleration = velocity/ time

2.6 = 0 / t

t = o / 2.6

t = o

8 0
3 years ago
Which electrode in Thomson’s vacuum tube was positively charged
Taya2010 [7]

Anode

Explanation:

The anode in the gas discharge tube used by Thomson in his experiment was the positively charged electrode.

Using the gas discharge tube, Thomson made the remarkable discovery of cathode rays.

The rays moves from the negatively charged cathode to the positively charged anode. This indicated that the rays carry positive charges.

Some parts of the tube are:

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Learn more:

cathode brainly.com/question/12747250

#learnwithBrainly

8 0
2 years ago
Suppose that a particular artillery piece has a range R = 9880 yards . Find its range in miles. Use the facts that 1mile=5280ft
Solnce55 [7]

Answer:

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If you do it in steps

R = 9880 yd * 3 ft/yd = 29640 ft

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6 0
3 years ago
Car a runs a red light and broadsides car b, which is stopped and waiting to make a left turn. car a has a mass of 1,800kg. car
frez [133]

The law of conservation of momentum tells us that momentum is conserved, therefore total initial momentum should be equal to total final momentum. In this case, we can expressed this mathematically as:

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since m is the total mass, m = mA + mB, we can write the equation as:

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mA vA + 0 = (mA + mB) v

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<span>vA = 13.02 m/s</span>

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A magnetic field would be produced by a beam of
kumpel [21]
3 protons should be your answer
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