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Dafna1 [17]
3 years ago
5

What important example, shown in the picture, is given regarding a real-life

Physics
1 answer:
dolphi86 [110]3 years ago
6 0

Answer:

Explanation:

There is no picture!

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What is solubility,malleability and ductility
docker41 [41]
Solubility is the ability to dissolve in liquids like water or organic solvents.
Malleability is the ability to bend and be hammered without breaking.
Ductility is when a material can be stretched into wires.
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3 years ago
Which is an example of potential energy? Question 9 options: an electric current lighting a light bulb releasing the strings on
Feliz [49]
The pulled back string on an archer’s bow.
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3 years ago
Two 2 kg masses is placed at either end of a rod that has a mass of .5 kg and a length of 3 m. What is the moment of inertia if
sergij07 [2.7K]

Explanation:

a) I=\displaystyle \sum_{i}m_ir_i^2

where r_i is the distance of the mass m_i from the axis of rotation. When the axis of rotation is placed at the end of the rod, the moment of inertia is due only to one mass. Therefore,

I= mr^2 = (2\:kg)(3\:m)^2 = 18\:kg-m^2

b) When the axis of rotation is placed on the center of the rod, the moment is due to both masses and the radius r is 1.5 m. Therefore,

\displaystyle I= \sum_{i}m_ir_i^2 = 2(2\:kg)(1.5\:m)^2 = 9\:kg-m^2

7 0
3 years ago
if a car has a kinetic energy of 400 J at 20m/s what.is the cars kinetic energy in kJ at a speed of 5 m/s
Nutka1998 [239]

Kinetic energy is an expression of the fact that a moving object can do work on anything it hits; it quantifies the amount of work the object could do as a result of its motion. It can be calculated as:

 

KE = mv^2 /2

 

We calculate the problem as follows:

 

KE = mv^2 /2

400 = m(20)^2 / 2

<span>m = 2 kg</span>

8 0
3 years ago
What is the weight of a rock with a mass of 3.6 kilograms
Marysya12 [62]
3.85 pounds is the answer
4 0
3 years ago
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