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Stella [2.4K]
3 years ago
15

A metallic laboratory spring is typically 5.00 cm long and 0.150 cm in diameter and has 50 coils.

Physics
1 answer:
drek231 [11]3 years ago
6 0

5.00 because it is correct

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A 48.0-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocit
Kipish [7]

Answer:

F = 47.6 N

Explanation:

  • Newton's 2nd law can be expressed as the rate of change of the total momentum, respect of time, as follows:

       F = \frac{\Delta p}{\Delta t}

  • So, in order to find the average force exerted by the skater on the wall, we can find the change in momentum due to the force exerted by the wall (which is equal and opposite to the one exerted by the skater), and  divide it by the time interval , as follows:

       F_{wall} = \frac{\Delta p}{\Delta t} =\frac{(48.0 kg*(-1.06m/s)}{1.07s} = -47.6 N

       ⇒ Fsk = 47.6 N (normal to the wall)

3 0
3 years ago
Energy energy can be transferred from one form to another we use many Indrajeet Converse in our daily life observe carefully to
aleksandr82 [10.1K]

Answer:

Find the list below.

Explanation:

Energy conversion imply the transformation of energy from one form to another. Examples of these conversions in my home include the following:

1. Chemical energy stored in food is converted to mechanical energy used in working(example sweeping)

2. Chemical energy stored in batteries are used to produce sound energy from the radio.

3. Electrical energy flowing through the wires are used to provide heat energy from the heating device.

4. Electric energy stored in the fan is converted to kinetic energy.

5. Chemical energy stored in petrol is converted to mechanical and electrical energies in the generator.

6. Electric energy supplied by the electric gas cooker is used to generate thermal energy after heating water.

7. Electrical energy flowing through the wires supply light energy in the bulbs.

8. Electric energy is converted to light and sound energy in the televisions.

9. Light energy from the sun is converted to chemical energy in the plants at the garden.

10. Electric energy is converted to sound and light energy in the kitchen blender.

3 0
3 years ago
What is the difference between constant and variable force ?
Nana76 [90]
Constant force - stays the same throughout

Variable force - changes throughout
6 0
2 years ago
How might you determine experimentally the moment of inertia of an irregularly shaped body about a given axis?
Alex73 [517]

Answer:

Using the parallel axis theorem

Explanation:

We note the angular speed and also the systems energy. Using these information we calculate the moment of inertia of irregular shaped body.

Io = 2E/w²

When we have moment of inertia of irregular shaped body, we can then use parallel axis theorem to solve for the moment of inertia of the body about the given axis.

I = Io + md²

4 0
2 years ago
Someone who has nostres that are not separated equally has which sensory issue?
Zina [86]

Answer:

i think B. Deviated septum

5 0
2 years ago
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