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valentina_108 [34]

2 years ago

11

A car on a Ferris wheel has an angular displacement of π 4 rad, which corresponds to an arc length of 28.2 m. What is the Ferris

wheel’s radius? Answer in units of m

1 answer:

Mkey [24]2 years ago

5 0

Answer:35.9 m

Explanation:

Given

angular displacement $\theta =\dfrac{\pi }{4}$

Arc length $L=28.2\ m$

and we know that arc length $L=\theta \times R$

where R=radius of curvature

$R=\dfrac{28.2}{\dfrac{\pi }{4}}$

$R=\dfrac{28.2\times 4}{\pi }$

$R=35.9\ m$

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What happens to electric charges within a conductor when a charged object is brought close to it

Agata [3.3K]

Well, if a charger conductor is touched to another object or close enough to touching the object then the conductor can transfer its charge to that object. Conductors allow for electrons to be transported from particle to particle, so a charged object will always distribute its charge until the repulsive forces are minimized.

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3 years ago

A refrigerator having a power rating of 350W operates for 12 hours a day. calculate the cost of electrical energy to operate it

rodikova [14]

Answer:

See the answers below.

Explanation:

The cost of energy can be calculated by multiplying each given value, a dimensional analysis must be taken into account in order to calculate the total value of the cost in Rs.

$Cost=0.350[kW]*12[\frac{hr}{1day}]*30[days]*4.5[\frac{Rs}{kW*hr} ]=567[Rs]$

The fuse can be calculated by knowing the amperage.

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V = voltage = 240 [V]

I = amperage [amp]

Now clearing I from the equation above:

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2 years ago

Sickle cell anemia is known to run in a family. A pedigree chart for this family is shown below. The parents are shown at the to

Blababa [14]

Ans is a male having the disease.

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2 years ago

Read 2 more answers

Part A Determine the magnitude of the x component of F using scalar notation. Fx F x = nothing lb Request Answer Part B Determin

maksim [4K]

As we know that force F makes an angle of 60 degree with X axis

so the X component is given as

$cos60 = \frac{F_x}{F}$

now we have

$F_x = F cos60$

$F_x = 0.50 F$

Similarly we know that force F makes an angle of 45 degree with Y axis

so the X component is given as

$cos45 = \frac{F_y}{F}$

now we have

$F_y = F cos45$

$F_y = 0.707 F$

Now for the component along z axis we know that

$F_x^2 + F_y^2 + F_z^2 = F^2$

now plug in all components

$(0.707 F)^2 + (0.50 F)^2 + F_z^2 = F^2$

$0.5 F^2 + 0.25 F^2 + F_z^2 = F^2$

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$F_z^2 = 0.25 F^2$

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5 0

2 years ago

A 2kg blob of putty moving at 4 m/s slams into a 6kg blob of putty at rest what is the speed of the to stick together blobs imme

andrew11 [14]

<h2>Answer</h2>

1m/s

<h2>Explanation</h2>

Given that:

<em>Mass of first blob = 2kg = m1</em>

<em>Velocity of blob = 4m/s = v1</em>

<em>Mass of second blob = 6kg = m2</em>

<em>Velocity of blob = 0m/s = v2</em>

<em />

To find:

<em>Final velocity = Vf</em>

<em />

<em>This question is of inelastic collision which is any collision between objects in which some energy is lost.</em>

<em />

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8 = Vf(8)

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3 0

2 years ago