I need to see the diagram
mass = 30kg
frictional force = coefficient of friction * (mass * g)
g = 9.8 m/s^2
So:
60N = x * 294 N
x = 60 N / 294 N = 0,2
<u>Statement</u><u>:</u>
A non-deformed spring is 15 cm long. When a 2.0 N force is applied to it, its length becomes 19 cm.
<u>To </u><u>find </u><u>out:</u>
The spring constant of the spring.
<u>Solution:</u>
- Extension of the spring (x)
- = (19 - 15) cm
- = 4 cm
- = 0.04 m [since we have to find the answer in N/m]
- Let the spring constant of the spring be k.
- We know, the formula of spring force, i.e.,
- F = kx
- Putting the values in the above formula, we get
- 2 N = k × 0.04 m
- or, k = 2 N ÷ 0.04 m
- or, k = 50 N/m
<u>Answer</u><u>:</u>
<u>The </u><u>spring </u><u>constant</u><u> of</u><u> </u><u>this </u><u>spring </u><u>is </u><u>5</u><u>0</u><u> </u><u>N/</u><u>m.</u>
Hope you could understand.
If you have any query, feel free to ask.
Pot conducts heat
Bin Insulates from heat
Plate Insulate from heat and brittle
Explanation:
Any material that is able to conduct heat is known as a conductor. Also, most heat conductors also allows electric current to pass through.
Most metals are categorized as heat conductors. A pot is usually made of conductors which helps to transfer heat to cook food.
Any material that does not conduct heat is called an insulator. Likewise, they do not allow electric current to pass through.
Most non-metals, plastics, rubber, wood, paper are insulators.
A brittle material that breaks into many pieces is a plastic. Their elastic limit is obviously exceeded and they lack internal cohesion and order. A glass used in making plate is also plastic and brittle.
learn more:
Conductors brainly.com/question/2474874
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Answer:
the answer to this question is A
