Reference no: EM13281732
1. An empty drum weighs 1.035 kg and when filled with benzene it weighs 5.418kg. If the density of benzene is 0.8766 g/mL, calculate the volume of benzene in the drum. Be sure to consider the units and significant figures.
2. Can the terms ‘mass' and ‘weight' be used interchangeably - explain.
3. In the following table, match the type of force listed with a relevant description.
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Type of force
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Matches with
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Description - cause of force
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a) compression
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f) rubbing your hand on carpet
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b) gravity
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g) a piece of paper falling to the ground
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c) friction
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h) a picture hanging on a wall
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d) tension
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i) a tight bandage around a swollen ankle
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e) shear
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j) two people pulling on either end of a rope
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4. a) Explain what is meant by the terms hydrostatic pressure and hydrodynamic pressure?
b) Which of these terms can be used when discussing cardiac output?
5. In the following table match the ‘term used to describe lever action' with the relevant human body part used when a nurse lifts a patient.
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Term used to describe lever action
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Matches with
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Human body part used to lift patient
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a) fulcrum
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e) the bones in the forearm
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b) effort force
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f) patient
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c) load force
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g) elbow joint
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d) lever
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h) work by muscles
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6. Consider the following wave diagram
7. Perform the calculation of the two wave characteristics that you selected in question 7 and explain why it is not possible to calculate the third.
8. What is the difference between longitudinal and transverse waves, provide an example of each.
9. Explain why sound waves cannot travel in a vacuum but light can.
10. Complete the following regarding the application of sound waves in medical science.
a) What type of medical imaging uses sound waves?
b) Explain how this form of imaging works.
11. The most harmful of the three common types of nuclear radiation is the
a) alpha particle.
b) beta particle.
c) gamma ray.
d) All have the same penetrating ability.
12. Explain what is meant by the term ‘half-life of a radioactive substance'.
13. Please complete the following questions about nuclear radiation.
a) Discuss four vital factors that should be used in minimising the effects of radiation.
b) What is most effective shielding that can be used for protection from the following radiation types?
• alpha particles
• beta particles
• gamma rays
14. A radioactive isotope, used in the agricultural industry has a half life of 8 days. On application, the radiation is emitted is measured at 12500 counts per sec (cps). If the area that it is applied to cannot be used until the radiation strength is less than 50 cps how long will it take before the site can be used again?
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Calculate a-phase line current and a-phase line voltage
: A Balanced Three-Phase Circuit is Characterized as follows: Y-Δ Connected Source Voltage in B-phase is 20
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What is the accounting break-even level of production
: Wexford Industrial Supply is considering a new project with estimated depreciation of $32,000, fixed costs of $36,000, and total sales of $73,500. The variable costs per unit are estimated at $5.00. What is the accounting break-even level of produ..
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Compute the magnitude of the electrostatic force
: In gaseous sodium chloride, chloride ions have one more electron than they have protons, What is the magnitude of the electrostatic force the molecule exerts on it
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A manufacturer of fat-free granola bars
: A manufacturer of fat-free grbars anola is considering targeting school-age children by positioning its product as a healthy, nutritious snack food. how can an understanding of the three forms of cultural learning be used in developing an effec..
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Calculate the volume of benzene in the drum
: Can the terms ‘mass' and ‘weight' be used interchangeably - explain and calculate the volume of benzene in the drum.
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What is the pretax required return on massey stock
: If the aftertax expected returns on the two stocks are equal (because they are in the same risk class), what is the pretax required return on Massey's's stock?
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Where should a third charge be placed in the plane
: A point charge +6.7 uC is placed at the origin, and a second charge -3.6 uC is placed in the X - Y plane at (0.40 m , 0.55 m ). Where should a third charge be placed in the plane
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What were the total costs of the issue
: In addition, the underwriter charges $600,000 in legal fees. On the first day of trading, the firm's stock closed at $61. What were the total costs of the issue?
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What would the output voltage reading be across resistors
: If a digital ohmmeter can be represented as a 100μAcurrent source and a 3 MΩ parallel resistor, what would the output voltage reading be across resistors of 1 kΩ, 10kΩ, 100 kΩ, and 1 MΩ
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