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4 years ago

How can magnet pick wooden fish

Physics

2 answers:

Korolek [52]4 years ago

5 0

It would have to have a magnet on the other side

lisov135 [29]4 years ago

4 0

If you have a peice of metal on the wooden fish then you will be abel to pick up the fish with the magnet hope this helped

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How does compression (the force) work? Not tension and compression. Just compression.

Eddi Din [679]

<span>What allows an arch bridge to span greater distances than a beam bridge, or a suspension bridge to stretch over a distance seven times that of an arch bridge? The answer lies in how each bridge type deals with the important forces of compression and tension.</span>

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3 years ago

When a hot and cold object are placed in contact, the hot one loses energy. Does this violate energy conservation? Why or why no

blsea [12.9K]

Answer:

This does not violate the conservation of energy.

Explanation:

This does not violate the conservation of energy because the hot body gives energy in the form of heat to the colder body, this second absorbs energy. This will be the case until both bodies reach the same temperature, reaching thermal equilibrium and reducing the transfer of thermal energy. In this way the energy was only transferred from one body to another but the total energy of the system (body 1 plus body 2) will be the same as in the beginning, respecting the principle of conservation of energy or also called the first principle of thermodynamics .

The part of physics that studies these processes is in turn called heat transfer or heat transfer or thermal transfer. Heat transfer occurs whenever there is a thermal gradient or when two systems with different temperatures come into contact. The process persists until thermal equilibrium is reached, that is, until temperatures are equalized. When there is a temperature difference between two objects or regions close enough, the heat transfer cannot be stopped, it can only be slowed down.

8 0

4 years ago

HELPP ITS DUE IN 5 MINUTES FREE BODY DIAGRAMS

Rashid [163]

Answer:

C i think sorry if inmccorect

Explanation:

5 0

3 years ago

Read 2 more answers

A student uses a spring to launch a marble vertically in the air. The mass of the marble is

Fed [463]

Answer:

the maximum height reached by the marble is 11.84 m.

Explanation:

Given;

mass of the marble, m = 0.02 kg

extension of the string, x = 0.08 m

force applied to the string, F = 58 N

Apply the principle of conservation of energy;

elastic potential energy = gravitational potential energy

¹/₂fx = mgh

$h = \frac{Fx}{2mg} \\\\h = \frac{58 \ \times \ 0.08}{2 \ \times \ 0.02 \ \times \ 9.8} \\\\h = 11.84 \ m$

Therefore, the maximum height reached by the marble is 11.84 m.

5 0

3 years ago

If R is the total resistance of three resistors, connected in parallel, with resistances R1, R2, R3, then 1 R = 1 R1 + 1 R2 + 1

rjkz [21]

Answer:

maximum error is 0.03333

Explanation:

given data

R1 = 100 Ω,

R2 = 25 Ω,

R3 = 10 Ω

1/ R = 1/ R1 + 1/ R2 + 1 /R3

possible error = 0.5%

to find out

maximum error

solution

we know

1/ R = 1/ R1 + 1/ R2 + 1 /R3

put all value R1, R2 and R3

1/ R = 1/ 100 + 1/ 25 + 1 /10

R = 20/3

now take derivative

dR/dR(i) = R²/R(i)² for i = 1, 2, 3

we have given error 0.005

so dR(i) = 0.005×R(i) for the i = 1,2,3

so the equation will be

dR = dR/dR(1) ×dR(1) +dR/dR(2) ×dR(2) + dR/dR(3) ×dR(3)

dR = R²/R²(1) ×dR(1) + R²/R²(2) ×dR(2) + R²/R²(3) ×dR(3)

put the value dR(1) and dR(2) and dR(3) and R

dR = (20/3)²/R²(1) ×0.005×R(1) + (20/3)²/R²(2) ×0.005×R(2) + (20/3)²/R²(3) ×0.005×R(3)

dR = (20/3)²/R(1) ×0.005 + (20/3)²/R(2) ×0.005 + (20/3)²/R(3) ×0.005

dR = (20/3)²/100 ×0.005 + (20/3)²/20 ×0.005 + (20/3)²/10 ×0.005

dR = (20/3)² ( 0.005/100 + 0.005/25 + 0.005/10)

dR = 0.033333

maximum error is 0.03333

8 0

3 years ago