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konstantin123 [22]
3 years ago
7

What unit of measure would you use for mass?

Physics
1 answer:
creativ13 [48]3 years ago
6 0

grams, pounds, kilos, etc

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Can someone please help me with science.
kherson [118]

Answer:

Yes

Explanation:

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3 years ago
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Prove for N/C=Volt/m
Zigmanuir [339]

Answer:

simple, Volt =change in potential energy/Charge

the unit of energy is newton meter (Force*distance)

the unit of charge is coloumb

So, Volt/meter=newton* meter/coloumb*meter

=newton/coloumb (hence proved)

This unit is the potential drop per unit of length in a conductive wire with uniform resistance

7 0
3 years ago
A student, who weighs 720N, is standing on a bathroom scale and riding an elevator that is moving downwards with a speed that is
jasenka [17]

Answer:

1) The mass of the student is approximately 73.39 kg

2) The net force on the student is approximately 947.523 N

3) The value the scale will read is approximately 96.59 kg

Explanation:

The given parameters are;

The weight of the student = 720 N

The speed at which the elevator is decreasing = 3.1 m/s²

1) The weight of the student = The mass of the student × The acceleration due to gravity

The acceleration due to gravity is a constant = 9.81 m/s²

Substituting the known values gives;

720 N = The mass of the student × 9.81 m/s²

∴ The mass of the student = 720 N/(9.81 m/s²) ≈ 73.39 kg

2) The forces acting on the student are;

i) The force of gravity which is the weight of the student acting downwards

ii) The inertia force of the slowing elevator acting downwards in the same direction as the weight of the student

The net force, F_{net} = The weight of the student + The inertia force of the slowing elevator

∴ The net force, F_{net} = 720 N + 73.39 kg × 3.1 m/s² ≈ 947.523 N

3) The scale will read the mass of the student as follows;

Mass reading of student on the scale = Force on scale/9.81

∴ Mass reading of student on the scale = 947.523/9.81 ≈ 96.59 kg

The value the scale will read = 96.59 kg.

3 0
3 years ago
In what frame of reference would you be at rest while riding in a car?
Alexeev081 [22]

In the frame of reference of anybody in the car.

8 0
3 years ago
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The boiling point of a substance is _72 degree Celsius. This temperature will be equivalent to Kelvin scale is-------.
Vlada [557]

Answer:

345 K

Explanation:

Temperature can be defined as a measure of the degree of coldness or hotness of a physical object.

Generally, it is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F).

<u>Given the following data;</u>

  • Boiling point = 72°C

<em>To convert the temperature in degree Celsius to Kelvin, we would use the following mathematical expression;</em>

Kelvin = 273 + °C

Substituting into the formula, we have;

Kelvin = 273 + 72

<em>Kelvin = 345 K</em>

<em>Therefore, the temperature of 72°C will be equivalent to 345 K on the Kelvin scale.</em>

3 0
3 years ago
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