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Paha777 [63]
3 years ago
8

A rope of negligible mass supports a block that weighs 30.0 N. as shown below. The maximum tension the rope can support without

breaking is 50.0 N. What is the maximum
acceleration the weight can be pulled upwards with without breaking the rope? (Use g = 10 m/s)
WON
Physics
1 answer:
Mars2501 [29]3 years ago
8 0

Answer:

a = 6.7 m/s²

Explanation:

The formula to apply here is :

Mass * acceleration = Tension -weight

m*a = Ft -mg  -----where m is mass of block, a is acceleration , Ft  is force due to tension.

Given in the question that ;

Mass of block = 3 kg

Ft = 50 N

g= 10

m*a = Ft -mg

3*a = 50-30

3a= 20

a= 20/3

a= 6.7 m/s²

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Answer:D) His Facial expressions when they spend time together

 

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Eva's should carefully observe the normal verbal signs by her lover because facial expression gives the hint to listener or viewer that one is interested towards other.

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6 0
3 years ago
Projectile A is launched horizontally at a speed of 20. Meters per second from the top of a cliff and strikes a level surface be
miv72 [106K]

consider the motion of projectile A in vertical direction :

v₀ = initial velocity of projectile A in vertical direction = 0 m/s         (since the projectile was launched horizontally)

a = acceleration of the projectile = g = acceleration due to gravity = 9.8 m/s²

t = time of travel for projectile A = 3.0 seconds

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4 0
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How did people studying lunar eclipses learn that Earth is round?
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Answer:

Scientists have studied eclipses since ancient times. Aristotle observed that the Earth's shadow has a circular shape as it moves across the moon. He posited that this must mean the Earth was round. Another Greek astronomer named Aristarchus used a lunar eclipse to estimate the distance of the Moon and Sun from Earth

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3 years ago
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Answer:

(a) 4.0334Ω

(b)parallel

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\frac{1}{3.03 } =\frac{1}{12.18}+\frac{1}{R2}

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(b)parallel connection is suitable for the desired total resistance. series connection can not be used to achieve a lower resistance as the equation for series connection is.

Req = R1+R2

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