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Leno4ka [110]
3 years ago
12

A negatively charged balloon moves close to another balloon. They then repel each other. What can be said about the other balloo

n?
Mathematics
1 answer:
lana66690 [7]3 years ago
4 0

Answer: B: It has a negative charge.

Step-by-step explanation:

According to theory espoused by the French physicist, Charles-Augustin de Coulomb, like charges charges will repel each other and unlike charges will attract one another.

This means that objects with negative charges will repel each other. As the first balloon in the question was negatively charged, it would only repel the other balloon if it was negatively charged as well.

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PLEASE HELP!!! I am struggling
cestrela7 [59]

The ball will be at height 19 feet first at 0.7 sec and then at 1.42 sec.

<u>Explanation:</u>

We need to find the time at which the ball will be at height 19 feet.

Equation:

h = 3 + 34t - 16t²

19 = 3 + 34t - 16t²

16 = -16t² + 34t

-16t² + 34t - 16 = 0

On solving the equation, we get

t1 = 0.7 s and t2 = 1.42s

Therefore, the ball will be at height 19 feet first at 0.7 sec and then at 1.42 sec.

4 0
3 years ago
Help!!!! Will give brainliest!!!!
Gwar [14]

Answer:

is true your answer hhhhhhhhgghdhxhhchdjfjf

5 0
2 years ago
Amira has 3/4 of a bag of cat food. Her cat eats 1/10 a bag per week. How many weeks will the food last?
Tema [17]

Answer:

trick question, the cat is going to die anyways so forget the food

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Dorian has two bags. Each bag has the letters A, B, and C written on little pieces of paper inside of it. He draws one letter fr
anyanavicka [17]
I believe 1/3 since there is three of them. 
But don't take my full word for it.
8 0
3 years ago
a. Write and simplify the integral that gives the arc length of the following curve on the given integral. b If necessary, use t
WINSTONCH [101]

Answer:

\int\limits^{\pi/2} _0 (1+4cos^{2} (2x)dx

Step-by-step explanation:

Arc length is calculated by dividing the arcs in to small segments ds

By pythagoren theorem

ds^2=dx^2+dy^2

then integrate ds to get arc length.

We are given a function as

y = sin 2x in the interval  [0, pi/2]

To find arc length in the interval

Arc length s =\int\limits^{\pi/2} _0 {1+y'^2} \, dx \\=\int\limits^{\pi/2} _0 (1+4cos^{2} (2x) )dx

Hence arc length would be

B) \int\limits^{\pi/2} _0 (1+4cos^{2} (2x)dx

6 0
3 years ago
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