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3 years ago

What were two arguments or lines of evidence in support of the geocentric model?

Physics

1 answer:

Inessa05 [86]3 years ago

7 0

Answer:

Two arguments or lines of evidence in support of the geocentric model are:

Geocentric model: This model describe that the earth is in the center of the universe and all the planets. Moon and the sun are revolved around the earth. This model explained the predominant description.

Heliocentric model: In this model the earth and the sun are consider moving and the sun are in the center of the solar system. And the sun is at the center position where all the planets are revolving around it, being dissimilar to the geocentric model.

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Witch statement accurately describes radiation

sammy [17]

Answer

Explanation:

radiaton is used from bombs but radiation and to cure cancer it is a toxic gas that if you smell it you can die

7 0

4 years ago

A 97.6-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is μk =

Mila [183]

Answer:

$v=6.65m/sec$

Explanation:

From the Question we are told that:

Mass $m=97.6$

Coefficient of kinetic friction $\mu k=0.555$

Generally the equation for Frictional force is mathematically given by

$F=\mu mg$

$F=0.555*97.6*9.8$

$F=531.388N$

Generally the Newton's equation for Acceleration due to Friction force is mathematically given by

$a_f=-\mu g$

$a_f=-0.555 *9.81$

$a_f=-54455m/sec^2$

Therefore

$v=u-at$

$v=0+5.45*1.22$

$v=6.65m/sec$

4 0

3 years ago

A water balloon was dropped from a high window and struck its target 1.1 seconds later. If the balloon left the person's hand at

GrogVix [38]

The acceleration of gravity on Earth is 9.8 meters per second every second. So
in 1.1 second of falling, an object gains (9.8 x 1.1) = 10.78 meters per second of
downward speed.

The balloon was already falling at 5 m/sec when the time began, and it gained
another 10.78 m/sec on the way. So at the end of 1.1 second, its downward
speed was (5.0 + 10.78) = 15.78 m/sec.

Its velocity was 15.78 m/sec downward.

5 0

3 years ago

A machine part has the shape of a solid uniform sphere of mass 215 g and diameter 3.10 cm . It is spinning about a frictionless

sineoko [7]

Answer: $\alpha =15 rad/s^2$

Explanation:

Given

mass of sphere $\left ( m\right )=215 g$

diameter $\left ( d\right )=3.10 cm$

Friction Force=0.02 N

here friction force will provide torque

thus $f_r\times r=I\times \alpha$

$0.02\times r=\frac{2mr^2}{5}\times \alpha$

$\alpha =\frac{0.02\times 5\times r}{2\times m\times r^2}$

$\alpha =\frac{5\times 0.02}{2\times 0.215\times 1.55\times 10^{-2}}$

$\alpha =15 rad/s^2$

6 0

3 years ago

When a bouncy ball is dropped from a second floor window, at what point is the kinetic energy highest?

Dmitry [639]

Answer:

Explanation:

Because the total energy available to the ball doesn't change whatsoever during its entire trip from the window to the ground,

TE = KE + PE which says that the total energy available to a system is equal to the kinetic energy of the system plus the potential energy, and that this value will not ever change (because energy cannot be created or destroyed. Sound familiar?) If the ball is being held still before it is dropped from some height off the ground, it is here that the total energy can be determined, and that total energy at this point is all potential, since the ball is not moving while someone is holding it and getting ready to drop it. The SECOND it starts to fall, the potential energy begins to be converted to kinetic. As the potential energy is losing value, the kinetic is gaining it at the same rate (again, energy doesn't just disappear; it has to go somewhere. Here, it goes from potential to kinetic a little at a time). When the ball finally hits the ground, or an INSTANT BEFORE it hits the ground, the potential energy is 0 because the height of something on the ground has a height of 0. At this instant, right before the ball hits the ground, is where the KE is the greatest. All the energy at that point has been converted from potential to kinetic.

Long story short, choice B is the one you want.

6 0

3 years ago