Physics, 19.11.2019 23:31 theoriginalstal9245
Astone is dropped from the top of a building 122.5 meters above the ground. suppose the distance the stone travels from its starting point is described by s(t) = 4.9t², where t is in seconds. how fast is the stone traveling when it hits the ground?
Answers: 3
Physics, 21.06.2019 18:20
Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.
Answers: 2
Physics, 22.06.2019 04:20
When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.
Answers: 1
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Astone is dropped from the top of a building 122.5 meters above the ground. suppose the distance the...
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