Turning a magnet very quickley would be best used to create

Allisa [31]

Couldn’t really read or see the problem clearly, but from what I think I saw I would say B

7 0

3 years ago

A seesaw has an irregularly distributed mass of 50 kg, a length of 3.0 m, and a fulcrum beneath its midpoint. It is balanced whe

Simora [160]

Answer:

$d_{CM} = 0.78 m$

Explanation:

given,

mass of seesaw,m= 50 kg

length of seesaw, d = 3 m

mass of person on one end, m₁ = 60 Kg

mass of person on another end, m₂ = 86 Kg

position of center of mass = ?

System is in equilibrium

Clockwise moment is equal to anticlockwise moment.

$m_1 g\dfrac{d}{2} + m g d_{CM} = m_2 g \dfrac{d}{2}$

$m_1 d + 2 m d_{CM} = m_2 d$

$d_{CM} = \dfrac{m_2 d-m_1 d}{2 m}$

$d_{CM} = \dfrac{86\times 3 - 60\times 3}{2\times 50}$

$d_{CM} = 0.78 m$

hence, the position of center of mass from the fulcrum is 0.78 m on 60 Kg mass side.

4 0

3 years ago

5. The force of gravity acting on the object is object’s ______________.

Dima020 [189]

I think it's mass...

The mass of an object refers to the amount of matter that is contained by the object; the weight of an object is the force of gravity acting upon that object. Mass is related to how much stuff is there and weight is related to the pull of the Earth (or any other planet) upon that stuff.

5 0

3 years ago

Explain why gases are more compressible than solid

Oduvanchick [21]

Answer:

If we put pressure on a solid or a liquid, there is essentially no change in volume. ... The kinetic-molecular theory explains why gases are more compressible than either liquids or solids. Gases are compressible because most of the volume of a gas is composed of the large amounts of empty space between the gas particles.

Explanation:

7 0

3 years ago

The bulb of the thermometer placed at the head of a distillation apparatus should be adjacent to the condenser. Explain the effe

Margarita [4]

Answer:

a) If the thermometer is placed well below the condenser it will record a higher temperature.

b) If the thermometer is placed well above the condenser it will record a lower temperature.

Explanation:

A) ) If the thermometer is placed below the opening to the condenser, a higher temperature will be recorded than if it is placed close to the opening since the bulb is contact with both the vapuor and liquid that is entering the condenser.

B) If the thermometer is placed above the condenser, a lower temperature will be recorded than if it is placed close to the opening since the bulb is not in full contact with both the vapuor and liquid that is entering the condenser.

6 0

3 years ago