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A high-performance sports car can go from 0 to 100 mph in 6.6 s. (Assume the car travels in the positive direction. Indicate the direction with sign of you answer.)
a) What is the car's average acceleration (in SI units; meter-kilogram-second)?
b) The same car can come to a complete stop from 27m/s in 4.1s ; What is its average acceleration?
A massless spring hangs from the ceiling. How much does its potential energy increase, if a mass is attached to it
a potters wheel is rotating at 3.2 rads in a counterclockwise direction when the potter turns it off and lets it slow
A hemispherical thin shell of radius R carries a uniform surface charge density s. Obtain the electric field at center of hemispherical shell
The rope and the pulleys are mass less, and there is no friction. Determine the acceleration of the 10.0 kg block
As shown in the figure, a small particle of charge q = -7.0 Times 10-6 C and mass m = 3.1 Times 10-12 kg has a velocity v0 = 9.4 Times 103 m/s as it enters a region of uniform magnetic field. The particle is observed to travel in the semicircular ..
A certain lightbulb has a tungsten filament with a resistance of 19.1 ? when at 20.0°C and 139 ? when hot, Find the temperature of the hot filament
A 200 gram sample of ice initially at 0ºC is sealed in a thermally insulated calorimeter with 30 grams of steam (water vapor) initially at 100ºC. What is the equilibrium temperature of the system
What is the moment of inertia relative to the center of mass of a 25.0 kg hoop with a radius of 2.0m
The switch is flipped to position A and enough time is allowed to pass so that the current reaches its maximum value. Determine the energy stored by the inductor 1s later and the time when the voltage across the resistor is 25V.
Inductive battery chargers, which allow transfer of electrical power without the need for exposed electrical contacts, are commonly used in appliances that need to be safely immersed in water, Find an expression for the emf induced in the secondary..
A capacitor with air between its plates is charged to 90 V and then disconnected from the battery. Find the dielectric constant of this glass
A model of a red blood cell portrays the cell as a sphericalcapacitor, a positively charged liquid sphere of surface areaA separated from the surrounding negatively charged fluidby a membrane of thickness t.
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