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AURORKA [14]
2 years ago
5

How can speed be defined

Physics
2 answers:
Anna11 [10]2 years ago
6 0

Explanation:

C) distance / time

.......

Tomtit [17]2 years ago
4 0

Answer:

Speed can be defined in (C) distance / time.

I hope this helped at all.

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Relationship between prism and lens ​
kozerog [31]

Answer:

In essence, optical lenses bend and focus light, known as refraction. Prism lenses, however, refract light a bit differently. ... Light passing through a prism will bend towards the base, while the image of the object viewed with the prism moves toward the peak.

Explanation:

5 0
3 years ago
A construction worker puts 20J of energy in to one strike of his hammer on the head of a nail. The energy transferred to driving
Slav-nsk [51]

Answer:

efficiancy=40 percent

Explanation:

efficiency=energy output/energy input×100

efficiancy=8J/20J×100

efficiancy=0.4×100

efficiancy=40 percent

Mark brianliest if my answer suit your question..

3 0
3 years ago
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A copper wire 20 m long and 4mm in diameter is attached to the Ceiling and a 400 N
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A

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2 years ago
Which statement correctly describes these electric field lines
JulijaS [17]

Answer:

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the correct answer is C please follow me

8 0
3 years ago
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A rifle is aimed horizontally at a target 49 m away. the bullet hits the target 2.3 cm below the aim point. part a what was the
Nezavi [6.7K]

We use the equation of motion for vertical component,

s_{y} = u_{y} t+\frac{1}{2} gt^2.

Here, s_{y}   is displacement of bullet, u_{y}  is vertical initial velocity of bullet which is equal to zero because bullet was fired horizontally, and t is time of flight.

Therefore,

s_{y} =\frac{1}{2}gt^2

Given, s_{y} =2.3 \ cm = 2.3 \times 10^{-2} \ m

Substituting the values, we get time of flight

2.3 \times 10^{-2} \ m = \frac{1}{2} \times 9.8 \ m/s^2 \times t^2 \\\\ t =\sqrt{46.94 \times 10^{-4} \ s } = 0.069 \ s

4 0
3 years ago
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