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A rocket car with mass 1300 kg is launched by going down a 30 degree ramp with a vertical height of 15 m, and then going up another 30 degree ramp with vertical height 2.0 m. The car starts from rest, and during the time it is on the ramps (both the downward and the upward ramp), the rocket engines are supplying a constant thrust force of 1900 N to the car. Neglect friction between the car and the surface of the ramp.
(a) How fast is the rocket car going at the top of the ramp, just before it is launched into the air?
(b) How fast is the rocket car going when it hits the ground?
The cost of the salt is $1.92 for 10 kg. A rich new source of CaCl2 was discovered and mined at $1.49 for 10 kg. Which salt is more cost effective?
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A 2.3-L flask of H2(g) at 1.8 atm and a 4.8-L flask of He(g) at 2.4 atm are connected by a tube of negligible volume. (See the figure below.) A valve on the tube is opened, allowing the gases to mix at constant temperature with no reaction. What i..
What is the predicted pH of the following: 0.1M HCl, 0.01M HCl, 0.001M HCl, 0.1M HC2H202, 0.1 M HC2H3O2, 0.1 M NH4Cl, deonized water
If 0.600 gram of zinc is used, what is the amount of zinc chloride that is produced in the above reaction?
62 mL of 1.7M solution is diluted to a volume of 208mL. A 104mL portion of that solution is diluted using 141mL of water. What is the final concentration
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