1.The platter of a computer hard drive disk rotates at 5400 rpm (revolutions per minute). a.What is the angular velocity of the disk?

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1.The platter of a computer hard drive disk rotates at 5400 rpm (revolutions per minute).a.What is the angular velocity of the disk?b.If the reading head of the drive is located 3.0 cm from the rotational axis, what is the speed of the disk below it?c.What is the linear acceleration of this point?d.If a single bit requires 5 µm of length along the motion direction, how many bits/second can the writing head write when it is 3.0 cm from the axis? Show all work and explanations.

A 260- flask contains pure helium at a pressure of 743 . A second flask with a volume of 470 contains pure argon at a pressure of 731 .

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A 260- flask contains pure helium at a pressure of 743 . A second flask with a volume of 470 contains pure argon at a pressure of 731 . If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of helium?

When is this hormone first detectable and how is this timing used to our advantage? First detectable : Used to our advantage : When does it decrease

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When is this hormone first detectable and how is this timing used to our advantage?

First detectable:

Used to our advantage:

When does it decrease and why is it able to decrease at this point?

Decreases:

Why it is able to:

Countercurrent stage striping is to be used to remove a taint from cream. The taint is present in the original cream to the stripping at a…

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Countercurrent stage striping is to be used to remove a taint from cream. The taint is present in the original cream to the stripping at a concentration of 20 parts per million (ppm). For every 100 kg of cream entering per unit time, 50 kg of steam will be used for stripping. It is desired to reduce the concentration of the taint in the cream to 1 ppm. The equilibrium relation between the taint in the steam vapor and the liquid cream is yA=10xA, where yAis ppm of taint in the steam and xAppm in the cream. Determine the number of theoretical stages needed. [HINT: In this case, for stripping from the liquid (L) stream to the vapor (V) stream, the operating line will be below the equilibrium line on the yA-xAdiagram. It is assumed that none of the steam condenses in the stripping. Use ppm in the material balances.]

A wire through which a current is flowing lies along the x-axis as shown. Connecting wires which are not shown in the diagram connect the ends of the…

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A wire through which a current is flowing lies along the x-axis as shown. Connecting wires which are not shown in the diagram connect the ends of the wire to batteries (which are also not shown). Electron current flows through the wire in the -x direction, as indicated in the diagram. To calculate the magnetic field at location A due to the current in the wire, we divide the wire into pieces, approximate each piece as a point charge moving in the direction of conventional current, and calculate the magnetic field at the observation location due only to this piece; then add the contributions of all pieces to get the net magnetic field.The wire is 1.6 m long, and is divided into 8 pieces. The observation location A is located at < 0.1, 0.22, 0 >m. The conventional current running through the wire is 9.5 amperes. In this exercise you will calculate the magnetic field at the observation location due only to segment 1 of the wire.What is the direction of conventional current in this wire? m mWhat is the vector for segment 1?> mWhat is the location of the center of segment 1?> mWhat is the vector from source to observation location, for segment 1?, >mWhat is the unit vector ? >What is change in L times unit vector r>Calculate the magnetic field at the observation location due only to the currrent in seqment 1 of the wire.> tesla

An observer sees an airplane flying directly overhead and determines that the distance from the wingtip to wingtip subtends and angle of 0.0080…

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An observer sees an airplane flying directly overhead and determines that the distance from the wingtip to wingtip subtends and angle of 0.0080 radians. She knows that the wingspan of the airplane is actually 160 feet. What is its altitude?

a) 10,000 ft

b) 15,000 ft

c) 20,000 ft

d) 25,000 ft

The purpose of this assignment is to assess your energy balance and health outcome.Input your 3-day activity data into the Activity Journal within iProfile®.Write at least a 525-word response in APA

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The purpose of this assignment is to assess your energy balance and health outcome.

Input your 3-day activity data into the Activity Journal within iProfile®.

Write at least a 525-word response in APA format addressing the following questions:

  • What are your current exercise habits?According to iProfile® report, what were your total expended calories? Provide a screenshot of your results summary.
  • From Week 4, what was the average amount of calories you consumed through food?
  • Are you in energy deficiency, balance, or excess?
  • What everyday changes, if any, might you make to increase the amount of energy expended in your day-to-day activities?
  • What types and amounts of exercise would work best for you?
  • Can you perform these activities year-round? If not, suggest alternative activities and locations for inclement weather.
  • Create a screenshot of your results summary by: 
    • Inputting your data within the Activity Journal on iProfile® after selecting the right dates. Access the energy balance report to determine how many calories you burned during the 3-day period. Access the Activity Journal Summary and the Energy Balance. Provide a screenshot of the results summary.

Include references with citations in APA format.

Conceptual questions Imagine a circuit with a resistor, inductor, and capacitor combined in series and consider how much each component affects the…

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Conceptual questions

Imagine a circuit with a resistor, inductor, and capacitor combined in series and consider how much each component affects the current.

  1. Which components limits current at low frequency ?
  2. which component limits current at high frequency ?
  3. where would you expect the maximum current to appear ?

A transverse wave on a long rope has a speed of 12.0 m/s, a wavelength of 1.00 m, and an amplitude of 0.200 m. (a) What is the tension on the rope if…

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A transverse wave on a long rope has a speed of 12.0 m/s, a wavelength of 1.00 m, and an amplitude of 0.200 m.

(a) What is the tension on the rope if its linear density is 0.300 kg/m?

(b) What is the total distance traveled by a point marked on the rope over 5.00 minutes? A is 43.5 but I can find part B. It is not 4.5 km, Please help! Thanks.