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kirill115 [55]
3 years ago
5

Question 9(Multiple Choice Worth 2 points)

Physics
1 answer:
Sveta_85 [38]3 years ago
5 0

Answer:

the answer is A dog running down the street

Explanation: kinetic energy is energy of motion and

the dog is running down the street. it would be potential if he was sitting on a hill

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Explain How can you tell that river water is suspension ?
andreev551 [17]

Answer:

Streams need vitality to move material, and levels of vitality change as the waterway moves from source to mouth.  

At the point when vitality levels are high, huge rocks and stones can be moved. Vitality levels are generally higher close to a waterway's source, when its course is steep and its valley slender. Vitality levels rise considerably higher in the midst of flood.  

At the point when vitality levels are low, just little particles can be moved (assuming any). Vitality levels are most reduced when speed drops as a waterway enters a lake or ocean (at the mouth).

7 0
3 years ago
A flat circular coil having a diameter of 25 cm is to produce a magnetic field at its center of magnitude, 1.0 mT. If the coil h
tresset_1 [31]

Answer:

The current pass through the coil is 6.25 A

Explanation:

Given that,

Diameter = 25 cm

Magnetic field = 1.0 mT

Number of turns = 100

We need to calculate the current

Using the formula of magnetic field

B =\dfrac{\mu_{0}NI}{2\pi r}

I=\dfrac{B\times2\pi r}{\mu N}

Where, N = number of turns

r = radius

I = current

Put the value into the formula

I=\dfrac{1.0\times10^{-3}\times2\pi\times12.5\times10^{-2}}{4\pi\times10^{-7}100}

I=6.25\ A

Hence, The current passes through the coil is 6.25 A

6 0
3 years ago
what is the half life of a radioactive isotope that decreased to one-fourth its original amount in 100 year
hichkok12 [17]
Two times 100 years = 200 years is half life

3 0
3 years ago
All scientists try to base their conclusions on _____.
seraphim [82]
Either theory or evidence
8 0
3 years ago
Read 2 more answers
A race car is on a track has a velocity of 200 m/s. 15 seconds later the driver notices that he is going 350 m/s. What is his ac
shtirl [24]

Answer:

initial velocity (u) = 200m/s

final velocity (v) = 350 m/s

time (t) = 15s

acceleration (a) = ?

NOW,

a=v-u/t

a= 350-200/15

a= 50/15

a= 3.3333

Explanation:

it's too easy just u need to understand the question . and go according to it's content .

main thing to memorize is it's simple formula.

I HAVE SOLVE THIS QNA. IN VERY

SIMPLE AND UNDERSTANDABLE FORM.

I høpë u hađ uņdērstøöď ťhìs şølutîóñ

:verý ×wəłł.

8 0
3 years ago
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