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AleksAgata [21]
3 years ago
7

What is Frictionshort note on friction​

Physics
1 answer:
Gre4nikov [31]3 years ago
6 0

Answer:

Explanation:

Friction can be defined as a force that resists the relative motion of two objects when there surface comes in contact. Thus, it prevents two surface from easily sliding over or slipping across one another. Also, friction usually reduces the efficiency and mechanical advantage of machines but can be reduced through lubrication.

Generally, there are four (4) main types of friction and these includes;

I. Static friction.

II. Rolling friction.

III. Sliding friction.

IV. Fluid friction.

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What dose fixed supply mean? Tell what a fixed supply curve looks like and heat it’s appearance means
devlian [24]

Answer:

The quantity of some goods or productive factors is totally fixed, whatever their price, for example, there is only one Mona Lisa from Da Vinci.

Explanation:

Nature's original endowment of land can also be considered fixed. A rise in the price offered for land cannot create yet another corner at the junction of 57th Street with Fifth Avenue in New York City. A rise in the pay of famous athletes is unlikely to alter their effort. When the quantity supplied is constant at all prices, what is paid to use such a factor of production is called economic rent or pure economic rent.

When supply is independent of price, the supply curve is vertical in the relevant interval. The land continues to contribute to production regardless of its price. The increase in demand for a fixed factor only affects the price. The quantity supplied does not vary and the rise in price is exactly the same as the upward shift in demand.

When a tax is applied to a fixed good or service, it is paid entirely by (or "transferred" to) the supplier (for example, by the landowner), who absorbs it in its entirety, losing part of its economic income. The consumer buys exactly the same amount as before the good or service without costing mor

5 0
3 years ago
A block slides down a frictionless plane having an inclination of 15.0°. The block starts from rest at the top, and the length o
nalin [4]

Answer: check the pic

Explanation:

8 0
3 years ago
As the human population continues to grow, sustainability measures must be put into place. Smart growth is a theoretical practic
yan [13]

Answer:

The answer is C. I and II only

Explanation:

Just took the test.

4 0
3 years ago
You and your friend are stranded on a raft of mass 1000 kg which is not moving, you can neglect friction between the boat and th
Papessa [141]

Answer:

Mass of raft=m1= 1000kg

Mass of paddle=m2=40kg

Speed of paddle=v2=3 m/s

Speed of raft=recoil speed=v1=?

Formula

V1= -(m2/m1)v2= -(40/1000)3= - 0.12m/s

Explanation:

Here the raft has much greater mass as compare the paddle and its velocity will always be negative due to recoil. 1 and 2 with masses and velocities are subscripts.

7 0
3 years ago
Two oppositely charged parallel sheets of charge give rise to a field of 9.00×1011 N/C between them. The sheets are square and h
Maksim231197 [3]

Answer:

Q = 5.75 C

Explanation:

As we know that due to a thin sheet electric field at a point near its surface is given as

E = \frac{\sigma}{2\epsilon_0}

now we have two sheets of opposite charges so the net electric field is double that of field due to one sheet

so we have

E_{net} = 2E

E_{net} = \frac{\sigma}{\epsilon_0}

9.00 \times 10^{11} = \frac{Q}{A\epsilon_0}

now we have

Q = 9.00 \times 10^{11}(0.85 \times 0.85)(8.85 \times 10^{-12})

Q = 5.75 C

8 0
4 years ago
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