How do the different forms of potential energy depend on an object's position or chemical composition?

Answers

Answer 1

Answer: It depends on the objects chemical composition.

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Determined by the distance between objects and the difference in mass between the objects

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Determined by the distance between objects and the difference in mass between the objects is gravity or gravitational force. Gravity is dependent on those two factors, and is what causes objects on Earth to stay on the ground. It is defined as the "pull" that an object with mass exerts on another object that makes the latter gravitate towards the former. Weight is the measure of gravitational force exerted by a mass.

Answer is gravitational force, according to e2020. Just took the review

Where are magnetic fields strongest near a bar magnet

Answers

The answer is letter A or 'top'

At the poles of the magnet.

Images produced by a cathode ray tube result from induced emf True or false

Answers

i'm not completely sure but i think it's false

A disk-shaped space station 175 m in diameter spins uniformly about an axis perpendicular to the plane of the disk through its center. How many rpm (rev/min) must this disk make so that the acceleration of all points on its rim is g/2?

Answers

The angular velocity of the disk must be 2.25 rpm

Explanation:

The centripetal acceleration of an object in circular motion is given by

$a=\omega^2 r$

where

$\omega$ is the angular velocity

r is the distance of the object from the axis of rotation

For the space station in this problem, we have

$a=(g)/(2)=(9.8)/(2)=4.9 m/s^2$ is the centripetal acceleration

The diameter of the disk is

d = 175 m

So the radius is

$r=(175)/(2)=87.5 m$

So, a point on the rim has a distance of 87.5 m from the axis of rotation. Therefore, we can re-arrange the previous equation to find the angular velocity:

$\omega = \sqrt{(a)/(r)}=\sqrt{(4.9)/(87.5)}=0.237 rad/s$

And this is the angular velocity of any point along the disk. Converting into rpm,

$\omega=0.236 (rad)/(s)\cdot (60 s/min)/(2\pi rad/rev)=2.25 rpm$

Learn more about circular motion:

brainly.com/question/2562955

#LearnwithBrainly

A roller coaster starts with a speed of 4.6 m/s at a point 49 m above the bottom of a dip.Neglecting friction, what will be the speed of the roller coaster at the top of the next
slope, which is 29 m above the bottom of the dip?

Answers

Answer:

20.5m/s

Explanation:

neglecting friction the amount of energy at the bottom equals to the amount of energy at top. Lawofconservationofenergy.

ME=P.E+k.E

ME= mgh+ 1/2mv*v

ME = (m* 10 *49)+(1/2m(4.6*4.6))

MEtop=500.98m

MEbottom=MEtop: in order to obey the law of conservation of energy

MEbottom=mgh+ 1/2mv*v

500.98m=m*10*29+1/2m v* v

500.98m= m(290+1/2v*v) ...cancel m by m

500.98-290=1/2v*v criss cross multiple

210.98*2=v*v

v=√421.96

v=20.5 m/s

Explain why Mercury,Venus,and Mars are not likely to support life as we know it.

Answers

Due to lack of, water ad improper at atmosphere and improper temperature

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