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Svet_ta [14]
3 years ago
8

Which statement best describes the energy changes that occur while a child is riding on a sled down a steep, snow-covered hill?

Physics
1 answer:
Degger [83]3 years ago
5 0
B. kinetic energy increases and potential energy decreases
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D. a membrane bound nucleus , lmk if im right
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The earplug can reduce the sound level to about 18 decibels (dB). What percentage reduction is this intensity?
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1 x 10 -10 whisper at 1m distance.

Explanation:

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2. Which of the following is NOT true of work?
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D

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Given the information below, estimate the total distance travelled during these 6 seconds using a left endpoint approximation. t
Nutka1998 [239]

Answer:

184 feets

Explanation:

Given the data:

time (sec) __ velocity (ft/sec)

0 __________30

1 __________ 54

2 __________56

3 __________34

4 __________ 8

5 __________ 2

6 __________22

Using left end approximation:

(0,1) ___ f(0) = 30

(1,2) ___ f(1) = 54

(2,3) ___f(2) = 56

(3,4) ___f(3) = 34

(4,5) ___f(4) = 8

(5,6) __ f(5) = 2

Hence, the Total distance traveled during the 6 second interval is:

Change ; dT = 1

1 * (30 + 54 + 56 + 34 + 8 + 2) = 184

4 0
3 years ago
Galileo held that measurements of time were _____ and that measurements of distance were ______. absolute; relative
DanielleElmas [232]

Answer:

option A

Explanation:

the correct answer is option A

The given blanks in the question will be filled with Absolute and relative receptively.

time is absolute means the numerical representation of time example 12:00 pm is absolute time.

Measurement of distance is relative. A relative distance is one which is represented with the reference of some other place, it is not an exact value.

6 0
3 years ago
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