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Vsevolod [243]
3 years ago
15

A hole is drilled in a metal plate. When the metal is raised to a higher temperature, what happens to the diameter of the hole?

Physics
1 answer:
zysi [14]3 years ago
4 0

Answer:

The diameter of the hole increases

Explanation:

Metals expand and contract with temperature. Whenever metal is heated, it usually expands in relation to its thermal expansivity. This expansion leads to a slight increase in surface area.

Once the surface area of the metal changes, this means that the dimensions of the whole metal surface changed. As a result, the diameter of the hole drilled in the metal plate will change also. In our case, the diameter of the hole will increase.

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An object is acted upon by a force of 22 newtons to the right and a force of 13 newtons to the left. What is the magnitude and d
Harman [31]

The magnitude and direction of the net force is 9 newtons to the right ⇒ answer A

Explanation:

The net force is the vector sum of all the forces that act upon an object

If two forces are horizontal where,

  • F_{1} > F_{2}
  • They are in opposite direction
  • Net force F = F_{1} - F_{2} in the direction of F_{1}

An object is acted upon by a force of 22 newtons to the right

and a force of 13 newtons to the left

We need to find the magnitude and direction of the net force

→ F_{1} = 22 newtons to the right

→ F_{2} = 13 newtons to the left

F_{1} > F_{2} and they are in opposite direction

Substitute these values in the rule of the net force above

→ Net force F = 22 - 13 = 9

→ The direction of the net force is the same direction of the larger

   force, the direction of the larger force is to the right

→ Net force is 9 newtons to the right

The magnitude and direction of the net force is 9 newtons to the right

Learn more:

You can learn more about the net force in brainly.com/question/4033012

#LearnwithBrainly

8 0
3 years ago
When an ocean plate converges with another plate, what is created on the seafloor at the line of convergence?
drek231 [11]
When two oceanic plates meet, the process of subduction occurs. During this, the denser plate slips underneath the lighter one, creating a subduction zone. In these subduction zones, a trench is formed. 
Trenches are deep crevices on the ocean floor and are home to many different marine species.<span />
5 0
3 years ago
Stephen is worried he has a fever. His dad is a scientist though and only has thermometer that measures in kelvin and is measure
MaRussiya [10]

Answer: im trying to find the same answer too

Explanation

4 0
2 years ago
two projectiles are fired at equal speeds but differentangles. one is fired at an angle of 30 degrees and the other at 60degrees
zheka24 [161]

Answer:

a) 30 degree

Explanation:

As we know that time of flight of the projectile depends on the the vertical component of the velocity always

It is given as

T = \frac{2v_y}{g}

now we know that

v_y = vsin\theta

so we will have

T = \frac{2vsin\theta}{g}

since we know that two projectiles are projected at same speed but different angles

so smaller the angle will take smaller time

so it would be 30 degree projectile which will take smaller time

8 0
3 years ago
What happens to the molecules in water as it freezes?
Keith_Richards [23]
The molecules give off heat.
6 0
3 years ago
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