<em>The question doesn't show symbols to match, but I'm giving you some common examples to help you out with your own assignment.
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Answer:
<em>List below</em>
Explanation:
<u>Electric Devices
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Electricity is usually converted into a variety of other forms of energy, like mechanical, chemical, nuclear, potential, thermal, among many others.
The devices listed below convert electricity in the mentioned forms of energy
- A speaker converts electric energy into sound energy
- A light bulb glows when it receives current
- A power source (battery, generator) provides energy to a circuit
- An on/off switch starts or stops the flow of current
Answer:
see below
Explanation:
2 Hz, means 2 complete waves are produced in one second, so
2 waves ----- 1 second
2 x 60 -------1 x 60
120 waves ------60 seconds
hope this helps,
please mark it
Answer:
<u>
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Explanation:
Normal reaction from 40 kg slab on 10 kg block
M × g = 10 × 9.8 = 98 N
Static frictional force = 98 × 0.7 N
Static frictional force = 68.6 N is less than 100 N applied
10 kg block will slide on 40 kg slab and net force on it
= 100 N - kinetic friction
= 100 - 39.2
= 60.8 N
Frictional force on 40 kg slab by 10 kg block = 98 × 0.4
Frictional force on 40 kg slab by 10 kg block = 39.2 N
40 kg slab will move with = 
The first one:
Like poles repel each other and opposite poles attract each other
