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poizon [28]
3 years ago
9

5. Alex goes cruising on his dirt bike. He rides 700 m north, 300 m east, 400 m north, 600 m west, 1200 m south 300 m east and f

inally 100 m north. What distance did he cover? What was his displacement? (use 1cm = 100m)
Physics
1 answer:
Gala2k [10]3 years ago
5 0

Answer:

Explanation:

i hope your mind is clear your full answer in image

please see in image

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RUDIKE [14]

Answer:

k Nishant

Explanation:

i think option A

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3 years ago
When Casey looks at a CD or DVD she notices that there is a rainbow pattern that is created by the light. She became curious and
ipn [44]

Answer:

Explanation:

diffraction

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Read 2 more answers
A 72-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.
Shalnov [3]

Answer:

Explanation:

During the first .8 s , the elevator is under acceleration . It starts from initial velocity u = 0 , final velocity v = 1.2 m /s , time = .8 s

v = u + at

1.2 = 0 +  .8 a

a = 1.2 / .8

= 1.5 m /s²

During the acceleration in upward direction , let reaction force of ground on man be R .

Net force on man = R - mg

Applying Newton's 2 nd law

R - mg = ma

R = m ( g + a )

= 72 ( 9.8 + 1.5 )

= 813.6 N .

This reaction force will be measured by spring scale , so reading of spring scale will be 813.6 N .

3 0
3 years ago
You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the oars) toward you, it moves a dis
tangare [24]

Answer:

56.86153 N

Explanation:

t =Time taken

F = Force

Power

P=\frac{W}{t}\\\Rightarrow W=P\times t\\\Rightarrow W=77\times 0.96\\\Rightarrow W=73.92\ Joules

Work done

W=F\times s\\\Rightarrow F=\frac{W}{s}\\\Rightarrow F=\frac{73.92}{1.3}\\\Rightarrow F=56.86153\ N

The magnitude of the force that is exerted on the handle is 56.86153 N

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What is the current in a series circuit with a resistance of 30 ohms and a potential difference of 120 volts?
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0.25A....................
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