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alisha [4.7K]
3 years ago
7

A child on a playground swing makes a complete to-and-fro swing each two seconds. the frequency of the swing is

Physics
1 answer:
Allisa [31]3 years ago
7 0
0.5 swings per second (0.5 swings/sec if you want it shorter)
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A mechanic pushes a 2.30 ✕ 103-kg car from rest to a speed of v, doing 4,800 J of work in the process. During this time, the car
Illusion [34]

The horizontal force applied is  160 N while the velocity is  2.03 m/s.

<h3>What is the speed of the car?</h3>

The work done by the car is obtained as the product of the force and the distance;

W = F x

F = ?

x = 30.0 m

W = 4,800 J

F = 4,800 J/30.0 m

F = 160 N

But F = ma

a = F/m

a = 160 N/2.30 ✕ 10^3-kg

a= 0.069 m/s

Now;

v^2 = u^2 + 2as

u = 0/ms because the car started from rest

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2 years ago
La masa de un camión es de
Nutka1998 [239]

Answer:

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As we know that

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3 years ago
Please hurry and please no links. I need an answer. Explain why a smart meter monitors the amount of electrical energy being use
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Smart Metering is a technology encouraging end-use energy efficiency. Smart Meters can give consumers clear and comprehensive information about their energy consumption and, giving them better information, can help consumers to become more energy efficient.

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It's just a matter of somehow causing the two ends of the wire
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4 years ago
Help please asap I'm super lost
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A compound is two or more elements combinded together.
A element is a pure substance.
it looks like all of them are compounds except the carbon dixode, My teacher would accept that as a anwser idk bout urs thoughs.
6 0
3 years ago
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