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melisa1 [442]
4 years ago
7

Why doesn't the Leaning Tower of Pisa fall over?

Physics
1 answer:
Elan Coil [88]4 years ago
8 0

Answer:

the Leaning Tower of Pisa does not fall because its center of gravity has been carefully kept within its base. ... In short, this is why the Tower of Pisa does not topple over. The Leaning Tower doesn't fall because its center of gravity is carefully kept within its base.

Explanation:

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A power transmission line is hung from metal towers with glass insulators having a resistance of 1.00×109 Ω . What current flows
Hunter-Best [27]

Answer:

The current flows through the insulator is 2 mA.

Explanation:

Given that,

Resistance R=1.00\times10^{9}\ \Omega

Voltage = 200 kV

We need to calculate the current

Using ohm's law

V=IR

I=\dfrac{V}{R}

Where, I = current

V = voltage

R = resistance

Put the value into the formula

I=\dfrac{200\times10^{3}}{1.00\times10^{9}}

I=0.0002\ A

I=2\ mA

Hence, The current flows through the insulator is 2 mA.

5 0
4 years ago
Lamp power with 120 W what is the current through the lamp when it is connected to a 12 V battery ?
SVETLANKA909090 [29]

Answer:

current = 10A

Explanation:

recall the formula, Power = current * voltage

                              120 W  = current * 12V

                               current (A) = 120 W / 12V

                               current = 10A

3 0
3 years ago
A crate is sitting in the center of a flatbed truck. As the truck accelerates to the east, the crate moves with it, not sliding
ozzi

Answer:

4. To the east

Explanation:

Friction forces always act in the opposite direction that an object tends to move in. In this case, when the truck accelerates to the east, the crate tends to move to the west due to inertia (the tendency for an object to remain at rest or at constant speed). In order to stop the crate from moving, there needs to be a friction force to the east.

3 0
4 years ago
A red racecar accelrates at a constant rate of 5 m/s2. How much time does it take to increase its speed from 50 m/s to 60 m/s?
natulia [17]
A red racecar accelrates at a constant rate of 5 m/s2. How much time does it take to increase its speed from 50 m/s to 60 m/s?


A.17 s


B.0.058 s


C.0.25 s


D.2.0 s
7 0
3 years ago
If the period of the pendulum is tripled, what is the length of the string increased by?
Nitella [24]
The period of the pendulum doesn't determine the length of the string. 
It's the other way around.

The period of the pendulum is proportional to the square root of its length.
So if you want to triple the period, you have to make the string nine times
as long as it is now.
7 0
3 years ago
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