1 answer

A friend tells you that a refrigerator door, beneath its layer of white-painted plastic, is made of aluminum

Question:

A friend tells you that a refrigerator door, beneath its layer of white-painted plastic, is made of aluminum. How could you check to see if this is true (without any scraping)?

Answers

A metal detector will show if it is metallic, but will not identify the metal. A magnet will not work.

You could get the density of the door by taking it off its hinges and weighing it and measuring its volume. You could also infer the mass from its moment of inertia on the hinge. This would require some mechanical measurements.

Measuring the X-ray penetration or measuring X-ray fluorescence with would also work..

Similar Solved Questions

1 answer
A mechanical system with 5 pump assemblies will operate satisfactorily if any three out of five...
A mechanical system with 5 pump assemblies will operate satisfactorily if any three out of five pumps are functioning. Given that 15% of the total pump production is defective, what is the probability of system malfunction?...
1 answer
Prob 15 a Steel plate shear strength = 20 ksi, o, = 36 Ksi. Allowable hardened...
Prob 15 a Steel plate shear strength = 20 ksi, o, = 36 Ksi. Allowable hardened steel punch stress 021= 60 Ksi Find the thickest plate in which a 1.5” dia hole can be punched. I b. How is the shear strength of steel typically measured?...
1 answer
Find the transfer function
Find the transfer function for the block diagram shownabove....
1 answer
Choose rationally or irrationally Please label each scenario as to whether or not the person is...
Choose rationally or irrationally Please label each scenario as to whether or not the person is acting rationally and making choices leading to the outcome they desire most. Steven's family is at a Korean restaurant. He orders some spicy barbeque pork, but it tastes terrible. They cannot get a r...
1 answer
What are the components of the vector between the origin and the polar coordinate #(4, (17pi)/12)#?
What are the components of the vector between the origin and the polar coordinate #(4, (17pi)/12)#?...
1 answer
Just 2 please A 35-turn coil with a diameter of 6.00 cm is placed in a...
just 2 please A 35-turn coil with a diameter of 6.00 cm is placed in a constant, uniform magnetic field of 1.00 T directed perpendicular to the plane of the coil. Beginning at timet-0s, the field is increased at a uniform rate until it reaches 1.30 T att -10.0 s. The field remains constant therea...
1 answer
What type of particulates are Venturi scrubbers commonly employed to remove? Select one: a. Wet, corrosive,...
What type of particulates are Venturi scrubbers commonly employed to remove? Select one: a. Wet, corrosive, or very hot b. Dry, non-corrosive, or cold c. Wet, corrosive, or cold d. Dry, corrosive or very hot...
1 answer
Q1. 4U Berhad Trial balance as at 30 June 2019 RM 0.000) RM (.000) 25,000 1.500...
Q1. 4U Berhad Trial balance as at 30 June 2019 RM 0.000) RM (.000) 25,000 1.500 750 2.500 12.500 1.250 500 875 1.250 2.500 1.250 7,500 500 1,500 6.000 Sales @ RM 100 per unit Inventory at 14 May 2018 (15,000 @ RM 50) Trade receivables and payables Purchases Return inwards Carriage inwards Carriage o...
1 answer
5. Traffic on Route 15 south of Selinsgrove was observed at two different times. The first...
5. Traffic on Route 15 south of Selinsgrove was observed at two different times. The first observation found a flow rate of 1,863 vehicles per hour per lane and a density of 85 vehicles per mile. The second observation found a flow rate of 1,050 vehicles per hour per lane and a density of 25 vehicle...
1 answer
Give the conjugate base for each compound below Acid Conjugate Base H,SO, HST NH
Give the conjugate base for each compound below Acid Conjugate Base H,SO, HST NH...
1 answer
Direction: Calculate percentage of Solute Order: 2,000 mL D20LR in 24 hours. What is the amount...
Direction: Calculate percentage of Solute Order: 2,000 mL D20LR in 24 hours. What is the amount of dextrose the client will receive?...
1 answer
A 40 KN hydraulic press has a stroke of 1m. The main ram is required to...
A 40 KN hydraulic press has a stroke of 1m. The main ram is required to move down with a velocity of about 5 m/min for the first 80 cm against a negligible load. The ram is slowed down to a velocity of 2 m/min for next 12 cm against a load of 15 KN, followed by the working stroke of last 8 cm develo...
1 answer
The following table shows the U.S. rates of personal tax as of year 2016, and these...
The following table shows the U.S. rates of personal tax as of year 2016, and these tax rates presented in this table are marginal tax rates. Single Taxpayers Married Taxpayers Filing Joint Returns Tax Rate (%) 0-$9.275 0-$18,550 10.0 $9,276-$37,650 $18,551-$75,300 15.0 $37,651-$91150 $75,301-$151,9...
1 answer
Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity. Particles...
Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity. Particles in liquids achieve terminal velocity quickly. One can measure the time it takes for a particle to fall a certain distance and then use Stokes' law to calculate the viscosity of the liq...
1 answer
2) Let (1 3 15 7 -20 A= 2 4 22 8 3 1 2 7...
2) Let (1 3 15 7 -20 A= 2 4 22 8 3 1 2 7 34 17 -1 3 be given (a)( 10 pts.) Find the reduced echelon form of A. (b)(5 pts.) Find a basis for the Row(A). (c)( 5 pts.) Find a basis for the Col(A). (d) (5 pts.) Find a basis for the Null(A). (e)( 5 pts.) What are the rank and nullity of A?...
1 answer
1. A radio wave interferometer contains two 10 m long arms, one of which can be...
1. A radio wave interferometer contains two 10 m long arms, one of which can be lengthened to a maximum of 18.5 m. mirror 10.0 in radio waves - beamsplitter mirror -- -----> -85 detector (a) What is the longest radio wave where the interferometer can be adjusted from construc- tive to completely ...
1 answer
2) If I flipped a coin five times and it landed heads up each time, what...
2) If I flipped a coin five times and it landed heads up each time, what is the probability that it will land heads up on the sixth time? 3) If a solar panel manufacturing process has a 3% defect rate, and a random sample of 10 panels is selected, what is the probability that none of the panels in t...
1 answer
A single-turn square loop carries a current of 18 A. The loop is 14 cm on...
A single-turn square loop carries a current of 18 A. The loop is 14 cm on a side and has a mass of 3.7×10−2 kg . Initially the loop lies flat on a horizontal tabletop. When a horizontal magnetic field is turned on, it is found that only one side of the loop experiences an upward force. F...
1 answer
Interpret the acid-base balance for the following values: pH7.47 PCO2- 50 НСОЗ.-34 Compensated respiratory acidosis Partially...
Interpret the acid-base balance for the following values: pH7.47 PCO2- 50 НСОЗ.-34 Compensated respiratory acidosis Partially compensated respiratory acidosis Partially compensated metabolic alkalosis Compensated metabolic alkalosis...
1 answer
Can anyone explain how to get symbol of ion? I know Scandium is in group 3B...
Can anyone explain how to get symbol of ion? I know Scandium is in group 3B so it's 3+. please list the charge from group 1A to 8A and 1B to 8B most likely ion element symbol of ion type of ion scandium | Sc3+ ocation anion sulfur 52- o cation anion magnesium Mg 2+ ocation anion Mg chlorine ci o...