What is the answer to these problems 30 pt

2. Recall the equation for an object's gravitational potential energy (assuming relative to the surface of the earth):

PE = mgh

PE is the potential energy.

m is the object's mass.

g is the acceleration due to earth's gravity.

h is the object's height from the earth's surface.

Given values:

PE = 19600 J

m = 100 kg

g = 9.81 m/s²

Substitute the terms in the equation with the given values and solve for h:

19600 = 100×9.81×h

3. Recall the equation for an object's kinetic energy:

KE = 0.5mv²

KE is the kinetic energy.

m is the object's mass.

v is its velocity.

Given values:

KE = 25 J

m = 2 kg

Substitute the terms in the equation with the given values and solve for v:

25 = 0.5×2v²

Use the equation for an object's potential energy again:

PE = mgh

Given values:

PE = 98 J

m = 2 kg

g = 9.81m/s²

Substitute and solve for h:

98 = 2×9.81×h

quantum mechanics or quantum physics is physics of very small objects (particles) and physical entities.

quantum physics has some parallels to our macro world and some pretty unique ideas which theoretically and mathematically proven to be true even though we will never be able to access them because of our size.

there are many types of particles: subatomic, elementary etc.

subatomic means they are smaller than atom, elementary means they are at the very basis of everything.

subatomic particles are for eg. protons, neutrons but not electrons.

elementary particles are categorised into 3 groups by what they do.

these 3 groups are quarks, leptons and bosons.

light for example is a particle more precisely a photon a part of leptons.

proton (subatomic particle) is made out of 2 up quarks and 1 down quark each of these has a fractional charge like . (i crazy)

most famous scientist who contributed to this physics are:

the topic itself us understand a lot and will probably be vastly used in the future (quantum computers, understanding the big bang,

we also must not forget quantum effects like:

and there is more. but probably too much for this answer to be consistent due to my average understanding of this topic.

hope this you understand quantum mechanics a little more. i'm not an expert in the topic (so don't be like wth if you are an expert) but i'm very interested in it.

anyways quantum physics is a very hard topic (harder than physics (perhaps)) therefore searching for every information there is about it and learning it is unfortunately impossible (you can only specialise into 1 - 3 things or more (perhaps

have fun and i wish you luck!

r3t40

an electric circuit