How much nickel is contained in a nickel coin that is 8.33% (by weight) of nickel? Recall that a nickel coin has a density of 8.91 g/cm3, a diameter of 21.21 mm and a thickness of 1.95 mm.
A. 73.7 grams
B. 511. grams
C. 0.00644 grams
D. 2.04 grams
E. 0.511 grams
How much nickel is contained in a nickel coin that is 8.33% (by weight) of nickel?...
Cent Nickel Dime Quarter Dollar Half Dollar Dollar Denominat ion Compositio Copper Plated Zinc Cupro- Nickel Cupro- Nickel Cupro- Nickel Cupro- Nickel Manganese- Brass 2.5% Cu 25% Ni 8.33% Ni 8.33% Ni 8.33% Ni Balance Zn Balance Cu Balance Cu Balance Cu Balance Cu 88.5% Cu 6% Zn 3.5% Mn 2% Ni Weight 2.500 g 5.000 g 11.340 g 8.1 g Diameter 0.750 in. 19.05 mm 0.835 in. 21.21 mm 2.268 g 0.705 in. 17.91 mm 5.670 g 0.955 in....
5) A 1938 nickel has a diameter of 21.21 mm, a thickness of 1.95 mm, and weighs 0.04905 N. what is 5) its density A) 1.82 x 103 kg/m3 B) 3.63 x 103 kg/m3 C) 1.37 10-4 kg/m3 D) 7.26 x 103 kg/m3 E) 19.3 x 103 kg/m3
3. Modern quarters are clad coins with a copper-nickel alloy sandwiching a pure copper core. The specifications for legal tender quarters established by the U. S. Mint are very exacting 1) be 8.33% Ni by mass and the balance Cu 2) weigh 5.670 g 3) have diameter of 24.26 mm 4) a thickness of 1.75 mm Each coin must: Use this information in the following problems a. Use dimensional analysis to calculate the g Ni in YOUR quarter b. Nickel...
1) The accuracy of a coin-counter machine is gauged to accept nickels with a mean diameter of millimeters 21.21 mm. A sample of 42 nickles was drawn from a reported defective coin-counter machine located near a school. The sample had a sample mean of 21.211 mm and sample standard deviation 0.009 mm. Test the claim that the mean nickel diameter accepted by this coin-counter machine is greater than 21.21 mm. Test at the 0.1 significance level. (a) Identify the correct...
Problem 4.31 A hanging 'nickel wire with diameter 1.4 mm (1.4 × 10-3 m) is initially 0.70 m long. When a 60 kg mass is hung from it, the wire stretches an amount 1.34 mm. A mole of 'nickel has a mass of 59 grams, and its density is 8.90 g/cm3. Find the approximate value of the effective spring stiffness of the interatomic force. ks= N/m
Your answer is incorrect. Try again A hanging .nickel wire with diameter 0.5 mm (0.5 x 10-3 m) is initially 1.45 m long. when a 98 kg mass is hung from it, the wire stretches an amount 35.5 mm. A mole of"nickel has a mass of 59 grams, and its density is 8.90 g/cm3. Find the approximate value of the effective spring stiffness of the interatomic force ks =To:31777228 N/m the tolerance is +/-5%
You are relaxing at home, working on your coin collection. You have learned that collectible coins are sometimes plated with gold to enhance their beauty and value. On an online site that sells collectible coins, you see a commemorative quarter-dollar advertised for sale at $4.98. The information on the site says that the coin has a diameter of 24.6 mm and a thickness of 2.07 mm, and it is completely covered with a layer of pure gold 0.160 µm thick....
You are relaxing at home, working on your coin collection. You have learned that collectible coins are sometimes plated with gold to enhance their beauty and value. On an online site that sells collectible coins, you see a commemorative quarter-dollar advertised for sale at $4.98. The information on the site says that the coin has a diameter of 24.6 mm and a thickness of 2.08 mm, and it is completely covered with a layer of pure gold 0.165 µm thick....
2. Collectible coins are sometimes plated with gold to enhance their beauty and value. Consider a commemorative quarter-dollar advertised for sale at $4.98. It has a diameter of 24.3 mm, and is completely covered with a layer of pure gold 0.218 um thick. The price of gold is $28.90 per gram; the density is 19.3 g/cm3. The patterns on the faces of the coin and the edge of the coin have a negligible effect on its area. The volume of...
How many.moles.of gas are contained in 1000 mL at 10 °C and a pressure of 350 mm Hg? 3. a) 0.010 mol b) 0.060 mol c) 0.020 mol d) 4.26 x 10 mol What is the molecular weight of a gas that exerts a pressure of 1671.4 mm of Hg at 27 °C and 4. has a density of 1.25 g/mL? a) 20.1 g/mol b) 14.0 g/mol c) 39.9 g/mol d) 65.2 g/mol 4ca o 32 wgm 5. What is...