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MakcuM [25]
3 years ago
8

A glass jar which is kept in freezing mixture but is in broken because​

Physics
1 answer:
Ann [662]3 years ago
8 0

Answer:

the glass contains air bubbles that expands and contracts as the glass is heated or froze. when they expand they may cause the glass to break or even explode

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Which of these correctly shows what happens when two magnets are placed side by side?
Margarita [4]

Answer:

D

Explanation:

Remember that magnets only attract at different poles. If both poles are the same, they repel

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3 years ago
a rifle is used during the biathlon event in the Olympics the rifle has a mass of 2.5 kg the bullet has amass of 0.02 kg after t
Nataliya [291]
The momentum before is zero because nothing is moving. Note that because momentum is a conserved vector, the total momentum after the shot is also zero. You just have to add the products of mass and velocity in opposite directions. So the answer is zero
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The reaction of magnesium ribbon with oxygen.what is the product formed?
zaharov [31]
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6 0
3 years ago
this is my 5th time waisting my points for this question because I could fail my final and I am not getting any answers so can s
Neko [114]

Answer:

<em>The person needs to apply 25 N to balance the seesaw</em>

Explanation:

<u>Moment</u>

The moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis.

The moment M of a force F located at a distance x from the axis of rotation is calculated as follows:

M = F.x

The image shows a moment of M=100 N.m is needed to be applied to balance the seesaw. It can also be noted that the distance to the pivot is x=4 m

To calculate the force needed to balance the seesaw, we solve for F:

\displaystyle F=\frac{M}{x}

\displaystyle F=\frac{100\ N.m}{4\ m}

F = 25 N

The person needs to apply 25 N to balance the seesaw

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A brick is dropped from a height of 31.9 meters
tia_tia [17]

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what is asked give brief explanation about question

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