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Describe the chemical properties of alkanes; what chemical structure makes a compound an alkane? How can alkanes react with other substances? What are alkanes commonly used for in everyday life? List some commonly used alkanes.
How are ethene and ethyne different from ethane? What are the common names for ethene and ethyne?
A cart of mass 500g is running with a speed 0.8m/s to the right; What is the magnitude of the total momentum of the carts
Three resistors are connected in series across a battery, What is the greatest voltage that the battery can have without one of the resistors burning up
a student calculates the unknown liquid to have a density of 0.87 gcm3. if the class average for the density of the
A handball is thrown straight upward and is in the air for a total time of 8 s. Draw a diagram, label time and velocity every second. Compute the maximum height of the ball in meters
Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high-many times higher than the wind speed. At the tip of a blade, what is the centripetal acceleration
A parallel plate capacitor has plates of area A and seperation of d and is charged to a potential difference of V.Derive expressions for the new potential difference
What are the strength and direction of an electric field that will balance the weight of a 1.0 g plastic sphere that has been charged to -3.1 nC
Very small forces can have tremendous effects on the motion of very small objects. From rest, how much time would it take for the electron to reach a speed of 3.0 × 106 m/s
A gymnast takes off with an angular momentum of 60 kgm^2/s. What will be her angular velocity during a somersault, if her moment of inertia in the tucked position is 5 kgm^2. Be careful with the units.
Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. how much work does the tension force do on Magnus
The total kinetic energy in one mole of an ideal gas is 4,000 J. If the gas is nitrogen, what is the root mean square velocity of an individual particle in the ideal gas
Only a single wire is necessary to make a phone connection. What is the resistance (due to the earth) between the terminals
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