Wednesday
June 19, 2013

# Posts by Daisy

Total # Posts: 156

Physics
A speeder passes a parked police car at a constant speed of 31.8 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.74 m/s 2 . How much time passes before the speeder is overtaken by the police car?

P
A driver in a car traveling at a speed of 56 mi/h sees a deer 91.2 m away on the road. Calculate the magnitude of the acceleration necessary for the car to stop just barely missing the deer (assuming that the deer does not move in the meantime)

music
yes!

music
yes!

Physics
A man jogs at a speed of 1.7 m/s. His dog waits 2.5 s and then takes oﬀ running at a speed of 4.1 m/s to catch the man. How far will they have each traveled when the dog catches up with the man? help me set up the equations please!

Chemistry
A radiator is to be protected against freezing to -20f. Calculate the volume of C2H4(OH)2 ethylene glycol per liter of water. Density of glycol is 1.11 g/ml

Physics!!!!
A 78 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.4m/s. v=7.7m/s If the trampoline behaves like a spring of spring constant 5.6×104 N/m , how far does he depress it?

US HISTORY
NO ONE KNOWS FOR CERTAIN WHY THE CLASSIC WORLD BEGAN TO DECLINE. GIVE TWO REASONS FOR A REASONABLE DECLINE?

Physics 6A
A 330- piano slides 3.8 down a 23 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. a.Determine the work done by the force of gravity. b.Determine the work done by the man on the piano.

PHYSICS 6A centripetal acceleration
A jet pilot takes his aircraft in a vertical loop. If the jet is moving at a speed of 1100km/h at the lowest point of the loop: A)Determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 5.5g's B)Calculate the 68kg...

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