Physics, 14.09.2019 08:30 JayceMeyers06
Astone is thrown straight up with an initial speed of 12.0m/s, off the edge of a 75m tall building. a. how long does it take the stone to reach the ground?
b. how high above the ground does the stone go?
c. at what time is the stone 50.0m from the bottom of the building?
d. how fast is the stone moving when it is 50m from the bottom of the building?
Answers: 1
Physics, 22.06.2019 12:00, connorhanratty6487
In an experiment, how can i change human errors? be specific.
Answers: 1
Physics, 22.06.2019 12:30, lmolder1329
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
Physics, 22.06.2019 18:30, kayleahrayne
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
Astone is thrown straight up with an initial speed of 12.0m/s, off the edge of a 75m tall building....
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