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A 0.500 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly distributed 40.0 pC charge on its surface. What is the potential near its surface?
What is the strength of the electric field between two parallel conducting plates separated by 1.00 cm and having a potential difference (voltage) between them of 1.50×10⁴V?
Air at 5 atm is compressed to half of its original volume. Find the resulting pressure of the air.
Find the electric field midway between a 2 -μC point charge which are 2.5m apart.
find (a) magnitude of the electric field 0.5m from a 2.5 -μC point charge and (b) the magnitude and direction of the electrostatic force acting on an electron placed at that point.
Two spherical objects have masses of 3.1 x 105 kg and 6.5 x 103 kg. The gravitational attraction between them is 65 N. How far apart are their centers?
Explain why determining the temperature of a star using the conversion formula Tkelvin=Tcelsius+300 is ok, but when determining the temperature of a human being, using Tkelvin=Tcelsius+273.15 is better.
A cook uses a microwave oven to heat a meal. The radiation wavelength is 9.25 cm. What is the energy of one photon of this microwave radiation?
A sports car accelerates from rest to 26.8 m/s (roughlv 60 min) in 5.1 seconds. What le the acceleration the car
Calculate the amount of electric potential energy possessed by
2.52x10^-10C at a point where the electric potential is 4.70V.
