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dangina [55]
1 year ago
13

On a playground slide, a child has potential energy that decreases by 1000 J while her kinetic energy increases by 900 J. what o

ther form of energy is involved, and how much?
Physics
1 answer:
mel-nik [20]1 year ago
8 0

Answer:

Friction     100 j

Explanation:

Friction causes the inequality between PE and KE

100 J

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Answer:

The one with equal forces on both sides, D is your answer

Explanation:

A, 5 and 10 No

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3 0
2 years ago
1. If the strength of the magnetic field at B is 3 units, the strength of the magnetic field at A is _____.
Ymorist [56]
<h3><u>Answer;</u></h3>

C. 12 units

<h3><u>Explanation;</u></h3>
  • If the strength of the magnetic field at B is 3 units, the strength of the magnetic field at A is 12 units
  • Magnetic field strength is one of two ways that the intensity of a magnetic field can be expressed.
  • <em><u>The strength of the field is inversely proportional to the square of the distance from the source. This means that If the distance between two points in magnetic filed is doubled the magnetic force between them will fall to a quarter of the initial value. </u></em>
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6 0
3 years ago
How long( in hours, will it take for 500 000 C of charge to flow through a diode if it requires
Alina [70]

Answer:

277.78 hours

Explanation:

The formula for calculating the amount of charge is expressed as;

Q = It

I is the current

t is the time

Given

I =0.05A

Q = 50,000C

Required

Time t

Recall that: Q = It

t = Q/I

t = 50,000/0.05

t = 1,000,000secs

Convert to hours

1,000,000secs  = 1,000,000/3600

1,000,000secs = 277.78 hours

Hence it will take 277.78 hours for the charge to flow through the diode

6 0
3 years ago
a class of seventh grade students conducted various scientific investigations throughout the year. which statement is the best e
MArishka [77]

Answer:

c

Explanation:it is

5 0
3 years ago
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