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Some planetary scientists have suggested that the planet mars has an electric somewhat similar to that of the earth, producing a net electric flux of 3.63X10^16 N*m/C at the planet's surface. Calculate: a) the total electric charge on the planet; b) the electric field at the planet's surface ( refer to the astronomical data inside the back cover);c) the charge density on Mars, assuming all the charge is uniformly distributed over the planet's surface. please walk me steps and detail.
Stan accelerates from a standing start at 2 m/s^2 and one second later Kathy accelerates from a standing start at the same position at 4 m/s^2. how long does it take Kathy to catch Stan
A ball of mass 0.45 kg is traveling with a velocity of 1.2 m/s north, 2.4 m/s east and 0.6 m/s up. What is the angular momentum of the ball with respect to the point at which the rope is attached to the post
A projectile is fired vertically from Earth's surface with an initial speed of 8.9 km/s. Neglecting atmospheric friction, how far above the surface of Earth will it go
Two point charges are separated by 10.0 cm and have charges of +2.00 uC, What is the electric field at a point midway between the two charges
A piano string with mass density 7700 kg/m3 and diameter 0.3 mm is stretched over a pulley such that its vibrating length is 45 cm. A hanging mass of 35 kg is attached to the end of the string that passes over the pulley.
Although the evidence is weak, there has been concern in recent years over possible health effects from the magnetic fields generated by transmission lines. Estimate the magnetic field strength on the ground
A pressure as low as P = 8 ? 10-11 Pa has been obtained. Suppose a chamber contains helium at this pressure and at room temperature, Estimate the mean free path
A block of silver, mass ms = 2.05 kg, is heated in a furnace to temperature Ts, but remains solid. It is now dropped on a block of ice, mass mi = 550 g and temperature Ti = 0o C. The combination reaches equilibrium at temperature Tf = 35.4 o C. Find ..
Density-Gravity Problem: a) Planet Vulcan has twice the mass of Earth and the same radius. What are its volume, density and surface gravity compared to Earth?
A car with energy absorbing bumper hits a tree. The mass of the car is 1500kg, the initial velocity was 10 m/s. What was the energy absorbed
Two blocks are connected by a string. The smooth inclined surface makes the angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.7 kg.
When you take your 1400-{\rm kg} car out for a spin, you go around a corner of radius 52 m with a speed of 11 m/s. what is the force exerted on it by static friction
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