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3 years ago

Explain why does the bowling ball decelerate as it travels along the lane

1 answer:

5 0

The main cause of this is Friction. The more oil that is laid down, the less friction there is between the ball and the lane surface. The less friction, the harder it is for the bowler to send the ball in a curved path imparted by the spin that the bowler puts on the ball at the instant of release.

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A machine is designed to lift an object wit a weight of 12 Newton’s if the input for the machine is set at 4 Newton’s what is th

Andre45 [30]

MA = output force/input force
MA = 12N / 4N
MA = 3N

6 0

3 years ago

A solenoid with 500 turns, 0.10 m long, carrying a current of 4.0 A and with a radius of 10-2 m will have what strength magnetic

lakkis [162]

Answer:

Therefore,

Strength magnetic field at its center, B

$B = 2.51\times 10^{-2}\ T$

Explanation:

Given:

Turn = N = 500

length of solenoid = l = 0.10 m

Current, I = 4.0 A

Radius, r = 0.01 m

To Find:

Strength magnetic field at its center, B = ?

Solution:

If N is the number of turns in the length, the total current through the rectangle is NI. Therefore, Ampere’s law applied to this path gives

$\int\ {B} \, ds = Bl=\mu_{0}NI$

Where,

B = Strength of magnetic field

l = Length of solenoid

N = Number of turns

I = Current

$\mu_{0}=Permeability\ in\ free\ space = 4\pi\times 10^{-7}\ Tm/A$

Therefore,

$B =\dfrac{\mu_{0}NI}{l}$

Substituting the values we get

$B =\dfrac{4\times 3.14\times 10^{-7}\times 500\times 4}{0.10}=2.51\times 10^{-2}\ T$

Therefore,

Strength magnetic field at its center, B

$B = 2.51\times 10^{-2}\ T$

4 0

4 years ago

What did Galileo discover when he dropped two cannon balls of different weights from the Leaning Tower of Pisa?

Nady [450]

Answer:

They fell at the same time.

Explanation:

Galileo was the first to discover the property of gravity, in which it makes everything fall at the same time in an airtight space. Gravity makes all objects fall and accelerate at 9.8m/s/s, regardless of weight, because the ratio between the weight of the object and the air resistance acting against it is a constant.

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3 years ago

Is water weaker than rock?

sveticcg [70]

Answer:

yes, if water was stronger then the rocks would not sink.

Explanation:

4 0

3 years ago

Read 2 more answers

electric force and electric charge have an _____ relationship, while electric force and distance have an _____ relationship

xenn [34]

Answer: electric force and electric charge have an relationship, while electric force and distance have an relationship

Explanation:

6 0

3 years ago