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Tomtit [17]
3 years ago
12

All changes in the state of matter of a substance requires a change in

Physics
2 answers:
ohaa [14]3 years ago
6 0

Answer:

enegy

Explanation:

most comonly heat

ipn [44]3 years ago
6 0
Energy and heat but mostly heat
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A 0.40-kg block is attached to the end of a horizontal ideal spring and rests on a frictionless surface. The block is pulled so
lubasha [3.4K]

Answer:

160N/m

Explanation:

According to Hooke's law which states that the extension of an elastic material is directly proportional to the applied force provided that the elastic limit is not exceeded. Mathematically,

F = ke where

F is the applied force

k is the spring constant

e is the extension

From the formula k = F/e

Since the body accelerates when the block is released, F = ma according to Newton's second law of motion.

The spring constant k = ma/e where

m is the mass of the block = 0.4kg

a is the acceleration = 8.0m/s²

e is the extension of the spring = 2.0cm = 0.02m

K = 0.4×8/0.02

K = 3.2/0.02

K = 160N/m

The spring constant of the spring is therefore 160N/m

4 0
4 years ago
A student bangs a brick at the head of a table. Three students are positioned equal distance from the head with their hands on t
iris [78.8K]

Explanation:

that the people closer too the head of the table will feel more vibrations than the people at the end of the table. since the vibrations will slow down as they travel farther down the table

Hope this helps!!

5 0
3 years ago
In your study unit, a relationship is compared to a car to point out that
mylen [45]
To point out that relationships call for regular maintenance. Cars need regular oil checkups and such and so do relationships.

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8 0
4 years ago
A spaceship fires a movement thruster, releasing gases at high pressure.
irina1246 [14]

Answer:

The answer is E.

Explanation:

3 0
3 years ago
This is the sum of all the forces applied to an object. It is usually separated into a horizontal and vertical component.
evablogger [386]

Answer: Net Force, also is referred to as Resultant Force

5 0
3 years ago
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