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serious [3.7K]
4 years ago
15

For a closer look when shaving:

Physics
2 answers:
4vir4ik [10]4 years ago
8 0

Answer:

A concave mirror was used.

Explanation:

Snezhnost [94]4 years ago
5 0

Plane mirror always forms an image of same size as that of object

Concave mirror can form a virtual image that is greater than the size of object

convex mirror will always form a virtual image that is smaller in size

So overall for closer look during shaving in mirror we need a mirror that will form virtual image of greater size

So here correct answer would be

<em>A concave mirror is used.</em>

for this purpose the person should be closer to mirror as we know that image will be virtual and magnified only when the object is between focus and pole of the mirror

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A block of mass 10kg is moved at a constant speed through a horizontal distance of 4m, by applying a force 50N. How much work ha
algol13

Answer:

Explanation:

given that

mass = 10kg

distance = 4m

force = 50N

to calculate the workdone when the force is applied in the same direction of displacement

mathematically,

workdone = force × distance

Workdone = 50 × 4

workdone = 200 joules

2) to calculate the workdone at an angle of 30° with the displacement we apply the formula

workdone = force × distance × cos Ф

workdone = 50 × 4 × cos 30°

workdone = 200 × 0.866

workdone = 173 . 2 joules

4 0
4 years ago
What is the mass of an object that requires a force of 30 N to accelerate at a rate of 5 m/sec2 ?
Anastaziya [24]
M=F/A
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8 0
3 years ago
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gizmo_the_mogwai [7]

Answer:reactant,active site,enzyme below,substrate,products

Explanation:

5 0
3 years ago
Mercury is the 80th position in the periodic table how many protons does it have
snow_lady [41]
Errrrr, it has 80.




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4 0
4 years ago
Read 2 more answers
Calculate the percentage increase in speed of the cyclist when the power output changes from 200 W to 300 W.
Rom4ik [11]

Answer:

<em>50%</em>

Explanation:

Given

Initial power = 200W

Final power = 300W

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percentage increase = increment/initial power * 100

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percentage increase = 50%

<em>Hence the percentage increase in speed is 50%</em>

6 0
3 years ago
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