A mass weighing pounds is attached to a spring whose constant is lb/ft. The medium offers a damping force that is numerically equal to the instantaneous velocity. The mass is initially released from a point foot above the equilibrium position with a downward velocity of ft/s. Determine the time at which the mass passes through the equilibrium position. Find the time at which the mass attains its extreme displacement from the equilibrium position. What is the position of the mass at this instant

Answers

Answer 1

Answer:

hello your question has some missing values attached below is the complete question with the missing values

answer :

a) 0.083 secs

b) 0.33 secs

c)  3e^-4/3

Explanation:

Given that

g = 32 ft/s^2 ,  spring constant ( k ) = 2 Ib/ft

initial displacement = 1 ft above equilibrium

mass = weight / g = 4/32 = 1/8

damping force = instanteous velocity  hence  β = 1

a)Calculate the time at which the mass passes through the equilibrium position.

time mass passes through equilibrium = 1/12 seconds = 0.083

b) Calculate the time at which the mass attains its extreme displacement

time when mass attains extreme displacement = 1/3 seconds = 0.33 secs

c) What is the position of the mass at this instant

position = 3e^-4/3

attached below is the detailed solution to the given problem

A Mass Weighing Pounds Is Attached To A Spring Whose Constant Is Lb/ft. The Medium Offers A Damping Force
A Mass Weighing Pounds Is Attached To A Spring Whose Constant Is Lb/ft. The Medium Offers A Damping Force
A Mass Weighing Pounds Is Attached To A Spring Whose Constant Is Lb/ft. The Medium Offers A Damping Force

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the statement from which investigation is an example of repetition? *answer choices in picture*

Answers

The answer in for the picture is investigation 4

Answer:

vestigation 4

Explanation:

First term / second mid Exam [1433/ 1434] Q12. A conductor of radius I, length and resistivity p has resistance R. What is the new resistance if it is stretched to 4 times its original length?

Answers

Answer:

R' = 4R

Hence, the resistance increases to four times its initial value as well.

Explanation:

The resistance of a conductor in terms of its physical dimensions can be given by the following formula:

[tex]R = \frac{\rho L}{A}\\[/tex]  _______ equation (1)

where,

R = Resistance of the conductor

ρ = resistivity of the material of the conductor

L = Length of the conductor

A = Cross-sectional Area of the conductor

Now, if the length of the conductor is increased to four times, keeping other values constant, then:

[tex]R' = \frac{\rho L'}{A}\\\\R' = \frac{\rho (4L)}{A}\\\\R' = 4\frac{\rho L}{A}[/tex]

using equation (1):

R' = 4R

Hence, the resistance increases to four times its initial value as well.

PLEASE HELP! A 0.423 kg object carries a +11.5 uc
charge. It is 0.925 m from a -7.55 C
charge. What is the magnitude of the
object's acceleration?
(u stands for micro. Remember, magnitudes
are positive.)
[?] m/s2

Answers

Answer:

2.15 m/s²

Explanation:

We'll begin by calculating the force of attraction between two charges. This can be obtained as follow:

Charge of 1st object (q₁) = +11.5 μC = +11.5×10¯⁶ C

Charge of 2nd object (q₂) = –7.55 μC = –7.55×10¯⁶ C

Electrical constant (K) = 9×10⁹ Nm²/C²

Distance apart (r) = 0.925 m

Force (F) =?

F = Kq₁q₂ / r²

F = 9×10⁹ × 11.5×10¯⁶ × 7.55×10¯⁶/ 0.925²

F = 0.781425 / 0.855625

F = 0.91 N

Finally, we shall determine the acceleration of the object. This can be obtained as follow:

Mass of object (m) = 0.423 Kg

Force (F) = 0.91 N

Acceleration (a) =?

F = ma

0.91 = 0.423 × a

Divide both side by 0.423

a = 0.91 / 0.423

a = 2.15 m/s²

Thus, the magnitude of the object's acceleration is 2.15 m/s²

Answer:

2.15

Explanation:

Acellus

A lightbulb has 25 W stamped on it. What does this mean?

Answers

Answer:

A lightbulb has 25 W stamped on it. What does this mean?:

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Explanation:

Which material transmits the most visible light?
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C.Clear glass
D.Black cloth

Answers

Answer:

c

Explanation:

The only major country that does not use the metric system
A.
France
B.
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C.
Russia
D.
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Answers

It’s for sure United States (B)

Which is used to zero a triple beam balance
A.
the pan
B.
a rider
C.
a beam
D.
the tare knob

Answers

The answer is the sliders on the valence beam when the pan is empty

If spring has a spring constant of 500 N/m and is stretched .50 meters,how much energy is stored in the spring ((show work for full credit, show equation))

Answers

Answer:

The energy stored is: 62.5 Joules

Explanation:

Given

[tex]k = 500N/m[/tex] --- spring constant

[tex]x = 0.5m[/tex] --- stretch

Required

The amount of energy

This is calculated as:

[tex]U = \frac{1}{2} kx^2[/tex]

[tex]U = \frac{1}{2} * 500N/m * (0.5m)^2[/tex]

[tex]U = 250N/m * (0.5m)^2[/tex]

[tex]U = 62.5\ J[/tex]

A decibel measures the _____________ of sound.

A.pitch

B,frequency

C.loudness

D.amplitude

Answers

Decibels measure sound intensity- which would be D. Amplitude.

A longitudinal wave is a type of wave that transfers energy

Answers

Answer:

It transfers energy parallel to the direction of wave motion. A transverse wave..

Explanation:

Answer:

The answer is a Wave Motion

Explanation:

A longitudinal wave is a type of wave that transfers energy is called," Wave Motion".

Hope you have a great day :)

Which of the following situations best represents a set of balanced forces?
Group of answer choices

A 12 N of force pulling left while a 22 N of force pulls right.

A 6 N of force pulling left while a 10 N of force pulls right.

A 2 N force and a 10 N force pulling left while a 12 N force pulls right.

A 22 N force pulling left while a 6 N force and a 12 N force pulls right.

Answers

Answer:

A 2 N force pulling and a 10 N force pulling left while a 12N force pulls right.

X-rays have so much energy they can go right through your ___ and ___.

Answers

Answer:

X-rays have so much energy they can go right through your muscles and fat.

Explanation:

There are actually more ways to fill in those two blanks... Different parts of the body absorb x-rays in varying degrees, but soft tissues (like skin, muscles, fat, and organs) allow most of the X-rays to pass through.

1. A +4 nC charge is placed at a distance r from another charge. If the charge experiences a force of 6000 N, what is the electric field intensity E ?

Answers

Answer:

1500 N/C

Explanation:

From the question,

Applying,

E =  F/q.................. Equation 1

Where E = Electric Field intensity, F = Force experienced by the charge, q = Charge

Given: F = 6000 N, q = +4nC

Substitute these value into equation 1

E = 600/4

E = 6000/4

E = 1500 N/C

Hence, the electric field intensity is 1500 N/C.

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Answers

Answer:

a

Explanation:

mark me as brainlist ez

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Answers

Answer:

Hello your question has some missing part attached below is the missing part

How much work is done by the cog system on the cars?

answer : 2.053 * 10^7 J

Explanation:

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W = ( KE[tex]_{2}[/tex] + PE[tex]_{2}[/tex] ) - ( KE[tex]_{1}[/tex] + PE[tex]_{1}[/tex] )

    = ( 1/2 mv^2 + mgh ) - ( 0 )

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Help!!! If you cannot type in the box, dont answer.

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I can

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Explanation:

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Answer:

true hope this help :}

Explanation:

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....................

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Answers

Answer:

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Answers

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Explanation:

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Answers

Answer:

1 m/s²

Explanation:

From the question,

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a = (v-u)/t.................... Equation 1

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Explanation:

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Explanation:

Kamal, Kamala, Krishna invert a sum of RS= 30,000 on a business in the ratio 2 : 3 : 5. Find the each of their investment.​

Answers

Answer:

Explanation:

Kamal, Kamala, Krishna invert  in the ratio 2 : 3 : 5.

As 2+3+5 =10, their respective share is 2/10, 3/10 and 5/10.

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Answer:

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c i think & mark as brain list?

In the 1500's Galileo experimented and discovered many things. One of his famous experiments allowed him to discover that blank when you drop them.​

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Answer:

In the 1500's Galileo experimented and discovered many things. One of his famous experiments allowed him to discover that all Objects fall  the same rate Bolo when you drop them.

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for mo

A boy who is riding his bicycle, moves with an initial velocity of 5 m/s. ten second later, he is moving at 15 m/s. what is his acceleration

Answers

[tex]\Large {{ \sf {Question :}}} [/tex]

A boy who is riding his bicycle, moves with an initial velocity of 5 m/s. Ten second later, he is moving at 15 m/s. What is his acceleration?

[tex]\Large {{ \sf {Given :}}} [/tex]

Initial Velocity (u) - 5 m/sFinal Velocity (v) - 15 m/sTime (t) - 10 sec

[tex]\Large {{ \sf {Formulae :}}} [/tex]

If the velocity of an object changes from an initial value u to the final value v in time t, the acceleration a is, [tex]a \: = \frac{v - u}{t} [/tex][tex]\Large {{ \sf {Step-by-step explanation :}}} [/tex]

[tex]a \: = \frac{v - u}{t} \\ or \: \: a = \frac{(15 - 5)}{10} m \: s^{ - 2} \\ or \: \: a \: = \frac{10}{10}m \: s^{ - 2} \\ or \: \: a = 1m \: s^{ - 2} [/tex]

[tex]\Large {{ \sf {Answer :}}} [/tex]

His acceleration is [tex]1m \: s^{ - 2} [/tex]
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