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Svet_ta [14]
3 years ago
13

Describe how a neutral material becomes attracted to a negatively charged object brought near it.

Physics
1 answer:
Naddik [55]3 years ago
3 0

Answer:

Electric force

Explanation:

It’s like static stuff

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One simple model for a person running the 100 m dash is to assume the sprinter runs with constant acceleration until reaching to
yaroslaw [1]

Complete Question:

One simple model for a person running the 100 m dash is to assume the sprinter runs with constant acceleration until reaching top speed, then maintains that speed through the finish line. If a sprinter reaches his top speed of 11.5 m/s in 2.24 s, what will be his total time?

Answer:

total time = 6.24 s

Explanation:

Using the equation of motion:

v = u + at

initial speed, u = 0 m/s

v = 11.5 m/s

t = 2.24 s

11.5 = 0 + 2.24a

a = 11.5/2.24

a = 5.13 m/s²

For the total time spent by the sprinter:

s = ut + 0.5at²

100 = 0.5 * 5.13 * t²

t² = 100/2.567

t² = 38.957

t = √38.957

t = 6.24 s

3 0
4 years ago
In a particular television picture tube, the measured beam current is 23.3 µA . How many electrons strike the tube screen every
zysi [14]

Answer:

Explanation:

Given that

Beam current (i)=23.3µA

And the time to strike(t)=28s

Also, a fundamental charge e=1.602×10^-19C

Then, the charge quantity is given as,

q=it

Then, q=23.3×10^-6×28

q=6.524×10^-4C

Also, the number of electron N is given as

q=Ne

Therefore, N=q/e

So, N=6.524×10-4/1.602×10^-19

N=4.072×10^15

There are 4.072×10^15 electrons strike the tube screen every 28 s.

7 0
3 years ago
An object with high momentum ______.
Pepsi [2]
The answer should be (b)
7 0
4 years ago
Select the correct answer. Which chemical reaction absorbs energy? A. photosynthesis B. explosion C. current produced by a batte
zavuch27 [327]

Answer:

Explanation:

Photosynthesis

4 0
3 years ago
Read 2 more answers
Which describes the motion of the box based on the resulting free-body diagram?
Anuta_ua [19.1K]

Answer:

D. (static equilibrium)

Explanation:

I just took the test and made a 100 with that answer.

8 0
3 years ago
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