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viktelen [127]
3 years ago
13

A woman lifts her 100-newton child up one meter and carries her for a distance of 50 meters to the 3.2

Physics
1 answer:
lianna [129]3 years ago
4 0
(100 N) x (1 m) =<span>= 100 J

 hope that helps</span>
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The speed of sound is 344 m/sec when the air is 20 degrees Celsius how far is the source of the sound if it takes 8 seconds for
pishuonlain [190]

Answer: 2752 m

Explanation:

344*8=

5 0
2 years ago
What is the acceleration of a racing car if it's speed is increased uniformly from 44 m /s to 66 m / s over an 11 second period
jolli1 [7]

Answer:

the acceleration of the race car is 2 m/s²

Explanation:

Given;

initial velocity of the race car, u = 44 m/s

final velocity of the race car, v = 66 m/s

time of motion of the race car, t = 11 s

The acceleration of the race car is  calculated as;

a = \frac{v-u}{t} \\\\a = \frac{66-44}{11} \\\\a = 2 \ m/s^2

Therefore, the acceleration of the race car is 2 m/s²

7 0
2 years ago
A wooden ring whose mean diameter is 15.0 cm is wound with a closely spaced toroidal winding of 555 turns. Compute the magnitude
ruslelena [56]

Answer:

9.916\times 10^{-4}T

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Number of turns of the toriod is given as 555

Current through the toroid is 0.670 A

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7 0
3 years ago
The part of the building structure, typically below grade, upon which all other construction is built is known as:________
Degger [83]

Answer:

horizontal structural member that supports a floor. Beams are typically wood, cold formed metal framing or steel.

Joists

Horizontal timbers, beams or bars supporting a floor.

8 0
3 years ago
How do butterfly dest on there wings
4vir4ik [10]
They have scales and they rub off easily
6 0
3 years ago
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