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Serga [27]
3 years ago
5

A scientist discovered an elementary particle paired with another particle. It has a positive charge equal to two–thirds of the

charge of an electron. How should the scientist categorize the particle?
A.) Boson

B.) Lepton

C.) Photon

D.) Quark
Physics
1 answer:
julia-pushkina [17]3 years ago
6 0
W boson has +1e or - 1e charge, Z boson has 0 charge.

Leptons have +1e, -1e or 0 charge.

Photons have 0 charge.

Only quarks have a charge of +2/3e or -1/3e of an electron charge. 

To be exact, only up-type quarks (Up, Down and Top quarks) have a +2/3e or two thirds of an electron charge.

So the correct answer is D) Quark.
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What are 7 examples of potential energy
yaroslaw [1]

Answer:

<em>Hewo Otaku Kun Here! (UwU)</em>

Explanation:

1. A rock sitting at the edge of a cliff has potential energy. If the rock falls, the potential energy will be converted to kinetic energy.

2. Tree branches high up in a tree have potential energy because they can fall to the ground.

3. A stick of dynamite has chemical potential energy that would be released when the activation energy from the fuse comes into contact with the chemicals.

4. The food we eat has chemical potential energy because as our body digests it, it provides us with energy for basic metabolism.

5. A stretched spring in a pinball machine has elastic potential energy and can move the steel ball when released.

6. When a crane swings a wrecking ball up to a certain height, it gains more potential energy and has the ability to crash through buildings.

7. A set of double "A" batteries in a remote control car possess chemical potential energy which can supply electricity to run the car.

<em>happy to help!</em>

<em>from: Otaku Kun ^^</em>

8 0
3 years ago
Kinetic energy can be passed from one object to another when objects collide,
antiseptic1488 [7]
Kinetic energy can be passed from one object to another when objects collide,
Answer: True

Hope This Helps! :3
5 0
3 years ago
Read 2 more answers
A basketball has a mass of 1 kg and is traveling 15 m/s. How fast would a 5 kg bowling ball have to travel to have the same mome
DiKsa [7]
A) 3 m/s. Hope this helps.
8 0
3 years ago
Read 2 more answers
A big box of sausages (30 kg) is lifted from the ground to the top shelf of the freezer. If the box is lifted at a constant spee
Lubov Fominskaja [6]

Answer:

Work done to lift the box is 515.03 J

Explanation:

By work energy theorem we know that work done by all forces is equal to change in kinetic energy

So we have

W_g + W_{ex} = \Delta K

so we have

-mgh + W_{ex} = 0

so we have

W_{ex} = mgh

W_{ex} = 30(9.8)1.75

W_{ex} = 515.03 J

5 0
3 years ago
27. (a) What magnification is produced by a 0.150 cm focal length microscope objective that is 0.155 cm from the object being vi
denpristay [2]

Answer:

magnification = - 30

overall magnification = -240

Explanation:

given data

Focal length of microscope objective f = 0.150 cm

Object distance from microscope objective do = 0.155 cm

magnification by eyepiece = 8 ×

to find out

What magnification is produced  and overall magnification

solution

we consider here  Image distance from microscope objective is =  di

so that

Magnification produced by objective will be = - \frac{di}{do}

so we find here  di by given equation that is

\frac{1}{do} +\frac{1}{di} = \frac{1}{f}     ..................1

\frac{1}{di} = \frac{1}{0.150} - \frac{1}{0.155}

di = 4.65 cm

so that magnification by object will be

magnification = - \frac{di}{do}

magnification = - \frac{4.65}{0.155}

magnification = - 30

and

overall magnification will be

overall magnification = magnification by objective × magnification by eyepiece   ........................2

overall magnification = -30 × 8

overall magnification = -240

7 0
3 years ago
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