Physics, 28.11.2019 05:31 nanagardiner08
Arocket is fired vertically from the ground. it moves upwards with a constant acceleration 10m/s square for 30 seconds after which the fuel is finished. after what time from the instant of the firing of the rockets will attain maximum height? ,find the maximum height it rraches above the ground and total time the rockrt will stay above the ground.
Answers: 3
Physics, 21.06.2019 22:00
Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve
Answers: 1
Physics, 22.06.2019 04:30
True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.
Answers: 2
Physics, 22.06.2019 06:30
2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
Answers: 2
Physics, 22.06.2019 11:00
Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.
Answers: 3
Arocket is fired vertically from the ground. it moves upwards with a constant acceleration 10m/s squ...
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