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3 years ago

Which unit is part of the SI system?

Physics

2 answers:

Dahasolnce [82]3 years ago

7 0

The unit from the SI system would be A) Gram

zimovet [89]3 years ago

3 0

Answer:

Explanation:

The SI system refers to the International System of Units and it's the most used around the globe. The use of this system is due to the necessity of using the same units in researches from different countries.

This system was first call the MKS system (Meter-Kilogram-Second). The SI system uses these fundamental magnitud units too, meter for length, kilogram for mass and second for time.

Therefore, the right answer here is gram, because it's the base of kilogram which is used in the SI system.

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An elevator ascends at a constant speed of 4 m/s. How much time is required for the elevator in order to travel 200m upwards?

Anarel [89]

Answer:

Explanation:

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7 0

3 years ago

A creature moves at a speed of 7.86 furlongs/fortnight (not a very common unit of speed). If 1.0 furlong = 220 yards 1 fortnight

AVprozaik [17]

Answer:

2 0.00130719 m/s

Explanation:

Now we have

7.86 furlongs/fortnight

7.86 x 220 yards / fortnight

1729.2yards / fortnight

1647.8 yards / 14 days

123.5yards / day

123.5 x 0.9144 meter / day

112.meters / day

=112.9meters / 86400s

= 0.001307m/s

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3 years ago

At what condition the screw gauge dors not have zero error

lana66690 [7]

<span>The screw gauge doesn’t have a zero error when the zero of the main scale coincides with the zero of the vernier scale or circular scale.
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6 0

4 years ago

What is it called when light bends as it moves from one substance to another?.

mina [271]

WHAT IS IT CALLED WHEN LIGHT BENDS AS IT MOVES FROM ONE SUBSTANCE TO ANOTHER?

The bending of light as it passes from one medium to another is called refraction. The angle and wavelength at which the light enters a substance and the density of that substance determine how much the light is refracted.

3 0

2 years ago

A farmhand pushes a 23 kg bale of hay 3.9 m across the floor of a barn. If she exerts a horizontal force of 91 N on the hay, how

uranmaximum [27]

Answer:

W = 354.9 J

Explanation:

Given that,

The mass of a bale of hay, m = 23 kg

The displacement, d = 3.9 m

The horizontal force exerted on the hay, F = 91 N

We need to find the work done. We know that,

We know that,

Work done, W = Fd

So,

W = 91 N × 3.9 m

W = 354.9 J

So, the required work done is 354.9 J.

4 0

3 years ago