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RSB [31]
3 years ago
6

A student walks 3 north and 4 m west. The magnitude of the resultant displacement for the student is

Physics
1 answer:
evablogger [386]3 years ago
6 0

Answer:

5m

Explanation:

Using Pythagoras theorem,

a^2+ b^2=c^2

3^2+4^2=c^2

25=c^2

√(25)=c

5m=c

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A block is thrown with an initial velocity of 30.0 m/s at an angle of 25.0o above the horizontal. What is the highest elevation
Serga [27]

The highest elevation reached by the ball in its trajectory is 16.4 m.

To find the answer, we need to know about the maximum height reached in a projectile.

What's the mathematical expression of the maximum height reached in a projectile motion?

  • The maximum height= U²× sin²(θ)/g
  • U= initial velocity, θ= angle of projectile with horizontal and g= acceleration due to gravity

What's the maximum height reached by a block that is thrown with an initial velocity of 30.0 m/s at an angle of 25° above the horizontal?

  • Here, U = 30.0 m/s and θ= 25°
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3 0
2 years ago
Determine the density of a rectangular piece of concrete that measures 3.7 cm by 2.1 cm by 5.8 cm and has a mass of 43.8 grams.
Novay_Z [31]
It is customary to work in SI units.

Calculate the volume of the concrete.
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5 0
3 years ago
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valina [46]

Answer:

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Explanation:

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Zigmanuir [339]

Answer:

Explanation:

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Here T₀ = 1 second

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So 2.3 second will pass for each second on moving reference.

6 0
3 years ago
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3 years ago
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