Two students must build a device or structure that can lift a stalled, 1,000-kg tractor up to a mobile 5-meter-high platform. The only motor
available to them can apply a maximum of 2,000 N, which is approximately enough to lift a 200-kg weight. The students have varying
opinions about the best method to raise the tractor onto the platform.
Student 1
The best way to raise the tractor onto the platform is to build a ramp and use the motor to pull the tractor up onto the platform. The motor
will be positioned at the top of the ramp and connected to the tractor with a cable. The platform will need to be fixed in place as the tractor
will be pulled up the ramp and straight onto the platform, as shown in the following diagram (diagram not to scale).
Motor)
How much cable is required for the two students' designs?
OA
The design of Student 1 requires much more than five meters of cable, but the design of Student 2 requires exactly
five meters of cable.
OB
Both students' designs require much more than five meters of cable.
OC.
The design of Student 1 requires exactly five meters of cable, but the design of Student 2 requires much more than
five meters of cable.
OD
Both students' designs require exactly five meters of cable.

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

it is easily magnetized.

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.