Reference no: EM13508348
1. What is the rotational speed of the second hand on a clock?
2. A child with a mass of 57 kg is riding on a merry-go-round. If the child has a speed of 3 m/s and is located 1.4 m from the center of the merry-go-round, what is the child's angular momentum?
3. Given that the carbon atom has a mass of 12 amu, how many carbon atoms are there in a diamond with a mass of 8 g?
4. A liter of water has a mass of 1 kg and the mass of a water molecule is 18 amu. How many molecules of water are there in 2 L of water?
5. An ideal gas has the following initial conditions: Vi = 490 cm3, Pi = 3 atm, and Ti = 100°C. What is its final temperature if the pressure is reduced to 1 atm and the volume expands to 1000 cm3?
6. An object has a mass of 300 kg and a volume of 0.4 m3.
What is its average density?
7. A cube with a mass of 49 g is made from a metal with a density of 6 g/cm3. What is the volume of the cube and the length of each edge?
8. Two barometers are made with water and mercury. If the mercury column is 17 in. tall, how tall is the water column?
9. A 450 cm3 block of aluminum (D = 2.7 g/cm3) is lowered carefully into a completely full beaker of water. What is the weight of the water, in newtons, that spills out of the beaker?
10. What can be said about the buoyant force on an object?
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What are its period and amplitude
: A mass on a spring bobs up and down over a distance of 29 cm from the top to the bottom of its path four times each second. What are its period and amplitude
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Assume the independent cases that follow
: Southlake Corporation issued $900,000 of 8% bonds on March 1, 20X1. The bonds pay interest on March 1 and September 1 and mature in 10 years. Assume the independent cases that follow.
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How much work does the engine perform each minute
: An engine takes in 8000 cal of heat and exhausts 4000 cal of heat each minute it is running. How much work does the engine perform each minute
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Determine the total cost for each of the following
: Assume that Suzie Whitson has decided to begin production of her outdoor children s toy. Her company is Jiffy Jet and costs for last month follow.
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What is the childs angular momentum
: A child with a mass of 57 kg is riding on a merry-go-round. If the child has a speed of 3 m/s and is located 1.4 m from the center of the merry-go-round, what is the child's angular momentum
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Find the total change in the planets velocity
: Over a time interval of 2.17 years, the velocity of a planet orbiting a distant star reverses direction, changing from +17.9 km/s to -18.0 km/s. find the total change in the planet's velocity
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What is the electric force on the -e charge
: A dipole (two equal and opposite charges) are placed 1 nm apart. What is the electric force on the -e charge due to the +e charge
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Find the time it takes the ball to hit the ground
: You are standing on a platform and you throw a 5kg ball horizontally with a speed of 10m/s. Find the time it takes the ball to hit the ground
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State vs. federal marijuana legalization
: you will again follow the suggestion to “look at justice through… frameworks that permit careful analysis and evaluation of competing views” (Dreisbach, 2013, Section 2.1). Again, you will apply his framework for analyzing how the concept of justi..
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