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allsm [11]
3 years ago
8

You push a 2.3 kg block against a horizontal spring, compressing the spring by 17 cm. then you release the block, and the spring

sends it sliding across a tabletop. it stops 88 cm from where you released it. the spring constant is 200 n/m. what is the block–table coefficient of kinetic friction?
Physics
1 answer:
horsena [70]3 years ago
6 0
Some dogs may inherit a susceptibility to epilepsy.

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3. A wye-connected load has a voltage of 480 V applied to it. What is the voltage dropped across each phase?
ZanzabumX [31]

Answer:

E_s = 277.13V

Explanation:

Given

Load\ Voltage = 480V

Required

Determine the voltage dropped in each stage.

The relation between the load voltage and the voltage dropped in each stage is

E_l = E_s * \sqrt3

Where

E_l  = 480

So, we have:

480 = E_s * \sqrt3

Solve for E_s

E_s = \frac{480}{\sqrt3}

E_s = \frac{480}{1.73205080757}

E_s = 277.128129211

E_s = 277.13V

<em>Hence;</em>

<em>The voltage dropped at each phase is approximately 277.13V</em>

5 0
3 years ago
Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicul
ANEK [815]

Answer:

4.14 cm.

Explanation:

Given,

For Coil 1

radius of coil, r₁ = 5.6 cm

Magnetic field, B₁ = 0.24 T

For Coil 2

radius of coil, r₂ = ?

Magnetic field, B₂ = 0.44 T

Using formula of maximum torque

\tau_{max}= NIAB

Since both the coil experience same maximum torques

now,

NIA_1B_1 = NIA_2B_2

A_1B_1 = A_2B_2

r_1^2 B_1 = r_2^2 B_2

5.6^2\times 0.24= r_2^2\times 0.44

r_2 = 4.14\ cm

Radius of the coil 2 is equal to 4.14 cm.

4 0
3 years ago
Will an objects mass affect the kinetic energy? (If then because answer)
goblinko [34]

Answer: Mass and kinetic energy have a positive relationship, which means that as mass increases, kinetic energy increases, if all other factors are held constant

Explanation:

7 0
2 years ago
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mariarad [96]

Answer:

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5 0
2 years ago
How does the vibration of a drumhead cause a sound wave to form?
Jobisdone [24]
Yes it does because it makes sound which causes waves
hope this helps

7 0
3 years ago
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