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3 years ago

Which best contrasts the weak force and the electromagnetic force??

2 answers:

6 0

Electromagnetic Force
This is the force which exists between all particles which have an electric charge. For example, electrons (negative charge) bind with nucleus of an atom, due to the presence of protons (positive charge). The force is long range, in principle extending over infinite distance.

The Weak Force This force is responsible for nuclear beta decay and other similar decay processes involving fundamental particles. The range of this force is smaller than 1 fm and is 10-7 weaker than the strong force.

Both of the forces are in wave form

katrin [286]3 years ago

3 0

Answer:

The range and the strength

Explanation:

The electromagnetic force is the force that acts between objects with electrical charge, while the weak force is the force responsible for the decay of some particles.

While the electromagnetic force has an infinite range, the weak force has an extremely small range, approximately $10^{-18} m$ .

Another important difference between the two forces is their relative force: while the electromagnetic interaction is the strongest of all four forces (relative strength: 1), the weak interaction is much more weak (relative strength compared to the electromagnetic force: $10^{-6}$ , so it is $10^6$ times weaker than the electromagnetic force.

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A Sound wave has a frequency of 192 HZ and travels across a football field (91.4m) in 2 seconds. what is the wavelength of the s

igor_vitrenko [27]

The wavelength of the sound wave is 0.24 m

Explanation:

First of all, we calculate the speed of the wave, which is the ratio between the distance covered by the wave and the time taken:

$v=\frac{d}{t}$

where, for the wave in this problem

d = 91.4 m

t = 2 s

Substituting,

$v=\frac{91.4}{2}=45.7 m/s$

Now we can find the wavelength of the wave by using the wave equation:

$v=f \lambda$

where

v is the speed of the wave

f is its frequency

$\lambda$ is the wavelength

For the wave here,

f = 192 Hz

v = 45.7 m/s

Solving for the wavelength,

$\lambda = \frac{v}{f}=\frac{45.7}{192}=0.24 m$

Learn more about waves:

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3 years ago

Prefix and suffix for hydrology

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Suffix: Logy

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3 years ago

How must a force be applied to cause resonance?

Aleonysh [2.5K]

Answer:

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3 years ago

The water in a river flows uniformly at a constant speed of 2.50 m/s between parallel banks 80.0 m apart. You are to deliver a p

NISA [10]

Answer:

a) The swimmer should travel perpendicular to the bank to minimize the spent in getting to the other side.

b) 133.33 m

c) 53.13°

d) 106.67 m

Explanation:

a) The swimmer should travel perpendicular to the bank to minimize the spent in getting to the other side.

b) velocity = distance * time

Let the velocity of the swimmer be $v_{s}$ = 1.5 m/s

The separation of the two sides of the river, d = 80 m

The time taken by the swimmer to get to the other end of the river bank,

$t = \frac{d}{v_{s} }$

t = 80/1.5

t = 53.33 s

The swimmer will be carried downstream by the river through a distance, s

Let the velocity of the river be $v_{r}$ = 2.5 m/s

$S = v_{r} t$

S = 53.33 * 2.5

S = 133.33 m

c) To minimize the distance traveled by the swimmer, his resultant velocity must be perpendicular to the velocity of the swimmer relative to water

That is ,

$cos \theta = \frac{v_{s} }{v_{r} } \\cos \theta = 1.5/2.5\\cos \theta = 0.6\\\theta = cos^{-1} 0.6\\\theta = 53.13^{0}$

d) Downstream velocity of the swimmer, $v_{y} = v_{s} sin \theta\\$

$v_{y} = 1.5 sin 53.13\\v_{y} = 1.2 m/s$

The vertical displacement is given by, $y = v_{y} t$

80 = 1.2 t

t = 80/1.2

t = 66.67 s

the horizontal speed,

$v_{x} = 2.5 - 1.5cos53.13\\v_{x} = 1.6 m/s$

The downstream horizontal distance of the swimmer, $x = v_{x} t$

x = 1.6 * 66.67

x = 106.67 m

7 0

3 years ago

Help Help Help pls...

alexandr1967 [171]

Answer:

1 is B 2 is D 3 is C

Explanation:

3 0

3 years ago