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3 years ago

"require people to consider what is right and wrong"

1 answer:

8 0

Yes and no science is a way and show us how to prove right and wrong so it’s important that you put it show they have evidence and experience to back up what is right and wrong

You might be interested in

Cual es la diferencia entre peso e ingravidez?

UkoKoshka [18]

Your question is what is the difference between weight and weightlessness.
Answer: Weight is a force caused by gravity and weightlessness is when you aren't experiencing the effects of gravity at all.
Hope this helps!!!

4 0

4 years ago

If you toss a ball vertically upward in a uniformly moving train, it returns to its starting place. Will it do the same if the t

gogolik [260]

Answer:No

Explanation:

As the train is accelerating so train velocity will be more as compared to the ball and thus will cover more distance as compared to the ball.

When the ball is thrown upward with some velocity, it also possesses the train velocity at the time of throwing but as time passes velocity of train increases due to acceleration of the train. This causes the ball to fall behind the point of launch.

3 0

4 years ago

A system consists of a disk of mass 2.33 kg and radius 50 cm upon which is mounted an annular cylinder of mass 2.20 kg with inne

Gekata [30.6K]

Answer:

Kinetic energy of the system = 2547.41 Joules.

Explanation:

Given:

Disk:

Mass of the disk (m) = $2.33$ kg

Radius of the disk (r) = $50$ cm = $\frac{50}{100} =0.5$ m

Cylinder:

Mass of the annular cylinder (M) = $2.20$ kg

Inner radius of the cylinder $(R_i)$ = $0.2$ m

Outer radius of the cylinder $(R_o)$ = $0.3$ m

The angular speed of the system $(\omega)$ = $15.1$ rev/s

Angular speed in in terms of Rad/sec = $15.1\times 2\pi =94.876$ rad/sec

Formula to be used:

Rotational Kinetic energy, $(KE)_r$ = $\frac{I\times \omega^2}{2}$

So, before that we have to work with the moment of inertia (MOI) of the system.

⇒ MOI of the system = MOI of the disk + MOI of the cylinder

⇒ MOI (system) = $\frac{mr^2}{2} +\frac{M(R_i+R_o)^2}{2}$

⇒ MOI (system) = $\frac{2.33\times (0.5)^2}{2} + \frac{2.20\times (0.2+0.3)^2}{2}$

⇒ MOI (system) = $0.566$ kg.m^2

Now

The rotational Kinetic energy.

⇒ $(KE)_r =\frac{I\omega^2}{2}$

Plugging the values.

⇒ $(KE)_r=\frac{0.566\times (94.876)^2}{2}$

⇒ $(KE)_r=2547.41$ Joules

Then

The kinetic energy of the rotational system is 2547.41 J.

5 0

3 years ago

If the area of the plates of a parallel plate capacitor is halved, and the separation between the plates tripled, all while the

Scorpion4ik [409]

Answer:

Explanation:

The capacitance of a parallel plate capacitor is given by

$C=\frac{\epsilon _{0}A}{d}$

where A is the area of plates and d is the separation between the plates.

Now the area is halved and the separation is tripled.

The new capacitance is

C' = C / 6

Initial potential energy is given by

$U=\frac{q^{2}}{2C}$

here the charge is constant

The new energy is given by

$U'=\frac{6q^{2}}{2C}$

U' = 6 U

The energy becomes six times the initial value.

3 0

3 years ago

A jet plane travels from Calgary to Winnipeg ,a distance of 1385m, in 2h and 45 mins. Determine the speed of the jet plane in m/

oee [108]

309.5752 m/s.

First, split the "1385 m" in half, because it takes 2 hours to get that far. So this way, we're turning it into mph (miles per an hour). (If m = miles)

Secondly, turn the mph (miles per an hour) into m/s.

Third, just some calculation, and you're done.

3 0

3 years ago