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ANTONII [103]
3 years ago
6

Two small identical balls A and B are held a distance r apart on a frictionless surface, with i very large compared with the siz

e of the balls. Ball A has a net charge of2q; ball B has a net charge of q. The balls are released at the same instant and begin to move together. Which characteristics describe the magnitudes of their accelerations over time? point Oequal and increasing Ounequal and increasing Oequal and decreasing Oequal and constant
Physics
1 answer:
iren2701 [21]3 years ago
4 0

According to the statement both bodies will experience the same force, by the effect of action and reaction, which would be the same to apply Newton's third law. By the characteristics presented both will have the same mass and the same acceleration. However, considering the sign of their charges, these being the same, they will be repelled from each other. When this movement is generated, the force will begin to decrease as the distance increases and therefore its acceleration will also decrease

Hence the correct option is equal and decreasing.

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Question 6 (10 points)
horsena [70]

Answer:

a= g = - 9.81 m/s2.

The following equations will be helpful:

a = (vf - vo)/t d = vot + 1/2 at2 vf2 = vo2 + 2ad

When you substitute the specific acceleration due to gravity (g), the equations are as follows:

g = (vf - vo)/t d = vot + 1/2 gt2 vf2 = vo2 + 2gd

If the object is dropped from rest, the initial velocity ("vi") is zero. This further simplifies the equations to these:

g = vf /t d = 1/2 gt2 vf2 = 2gd

The sign convention that we will use for direction is this: "down" is the negative direction. If you are given a velocity such as -5.0 m/s, we will assume that the direction of the velocity vector is down. Also if you are told that an object falls with a velocity of 5.0 m/s, you would substitute -5.0 m/s in your equations. The sign convention would also apply to the acceleration due to gravity as shown above. The direction of the acceleration vector is down (-9.81 m/s2) because the gravitational force causing the acceleration is directed downward.

hope this info helps you out!

7 0
3 years ago
Hai điện tích +q và -q (q>0) đặt tại hai điểm a và b với AB=a, M là một điểm nằm trên đường trung trực của AB cách AB một đoạ
stepladder [879]
I de momento que no what now what the que no se puede el gobierno del presidente y el gobierno
6 0
2 years ago
​In Figure 4.24, a current of 0.3 A flows through the conductor CD, and a charge of 4C passes through a cross-section AB of the
olga2289 [7]

Answer:

13.33 seconds

Explanation:

I = Q/t

t = Q/I = 4/0.3 = 13.33 seconds

8 0
3 years ago
Read 2 more answers
Please Answer These Questions I Really Need Help Please answer these questions
wel
1. <span>Onion cells have thick rectangular walls.
2. </span><span>Both are tropospheres, the lobster and fungi have the same outer shell.
3. </span><span>A bat is a mammal--it has fur, lactates and is warm-blooded. Mammals are vertebrates. Vertebrates have a dorsal nerve cord protected by bony or cartilaginous vertebrae. Arthropods are invertebrates--they do not have vertebrae. They are a specific kind of invertebrate with a jointed exoskeleton.
4, 5, 6, 7 - Sorry don't know these answers to these questions

</span>
8 0
3 years ago
Two dogs are pulling on a chew toy. One dog pulls the chew toy with 64 N [E] and
PIT_PIT [208]

Answer:

Eastward, at 11 m/s^2

Explanation:

64N-31N=unbalanced force of 33N

F=ma

33N=(3kg)a

a=11m/s^2 to the East

3 0
2 years ago
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