PHYSICS MIDDLE SCHOOL

A baseball falling toward a player's glove gains _____ energy and loses _____ energy. A. potential; kinetic B. kinetic; potential C. kinetic; chemical D. chemical; potential

Answers

Answer 1
Answer:

Answer:

I think it's B it can not be C or D because it has nothing to do with chemical energy

Answer 2
Answer:

Answer:

Your answer is B

Explanation:

When a ball falls it is gaining kinetic energy because it gains speed as it falls.Since its gaining kinetic energy it loses potential energy so ur answer is B :) hope it helps

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If atoms are made up of smaller particles, such as protons, neutrons, and electrons, then why are atoms considered the smallest particles of an element?

Answers

Because all protons are the same, all neutrons are the same, and all electrons are the same, and all atoms of all elements are made of them, so the smallest particles of every element are the same particles.  It's only when some number of them get together and make an atom that the properties of an element begin to show up.

Let me try it like this, and see if this does anything for you:

All buildings are made of brick, cement, wood, glass, pipes, wires, etc.
But all bricks are the same, all cement is the same, all glass is the same, etc.
Houses, stores, shacks, skyscrapers, and hunting lodges are all made of them.
You don't know what kind of building you have, until some brick, some cement,
some wood and some glass all get put together.

Similarly, you don't know what kind of atom ... of what element ...you have, until
some protons, some neutrons, and some electrons get put together

What is the formula for volume using density and mass

Answers


The definition of density is

                                                       Density                  = (mass) / (volume)

Multiply each side by 'volume' :    (density) x (volume) = (mass)

Divide each side by 'density' :                         Volume = (mass) / (density)
 
V=M/D
volume=mass/density

I need help !!!!! Show the work plz!!!!

Answers

Answer:

26) 2 meters a second

27) 2 meters a second

28) 5 meters a second

29) 8 km

Explanation:

1/.5 =2

8/4=2

50/10=5

8km×1= 8

Lenses in eyeglasses change the direction of light rays to help the lens of the eye form an image inside the eye . What process take place in the eyeglass lenses ?

Answers


To make this process happen, the eye contains a lens between the retina and the pupil. The lens and the cornea, a transparent covering, then work together, focusing the image on the retina. Vision problems occur when the image focused on the retina is focused either too far back, resulting in farsightedness or too far in, resulting in nearsightedness. In combination with these conditions, glasses may also work to assist with those suffering from crossed eyes, where the eyes refuse to focus together, which produces two of the same object in the field of vision, which results in blurriness of both objects. How glasses correct these problems is determined by what kind of lens the glasses are made of. The two types of lenses are the plus and minus lens. The plus lens has a convex shape, which focuses images on the retina when the eye’s lens originally focuses the image too far back. The minus lens has a concave shape, which focuses images on the retina when the eye’s lens originally focuses the image too close. Different strengths of these lenses determine how far back or how far forward the focus should be brought so that the image is displayed correctly on the retina.

The chart shows data for four moving objects.Object
Final Velocity
(m/s)
29
Change in
Time (s)
Initial Velocity
(m/s)
11
10
12
20
W
X
Y
IZ
Which object has the greatest acceleration?
34
Ow
OZ

Answers

Answer:

Y

Explanation:

The answer is y because,

W: (29-11)/6 = 3

X: (34-10)/12 =2

Y: (40-12)/7=4

Z= (28-20)/8=1

4 is greater then all, therefore the answer is Y

Answer:

X

Explanation:

v=u+at but t is constant so

a=v-u

for x

a=29-10

a=19

which marks the greater acceleration

What can you conclude about the figure

Answers

A is the correct answer to the question
962221 ................................
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