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An object of mass m = 4.4 g and charge Q = 32 µC is attached to a string and placed in a uniform electric field that is inclined at an angle of 30.0° with the horizontal. The object is in static equilibrium when the string is horizontal.(a) Find the magnitude of the electric field.__ N/C(b) Find the tension in the string.__ N
The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 2.7 x 105 N/C. What is the total charge in coulombs on the drum
Two charged plates create a potential difference of 190 V. At a point halfway between the plates an electron is released from rest. What was the initial speed and direction of the proton
An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.260 T. estimate the radius of the circular path
Calculate the acceleration of the arrow in the bow.
Calculate the number of coulombs of positive charge in 285 cm3 of (neutral) water. (Hint: A hydrogen atom contains one proton; an oxygen atom contains eight protons.)
If 15 g of radon gas with a half-life of 4 days is present in a balloon at t = 0, what is the mass of radon gas present
Positive point charges q and 2q are located at x = 0 and x = 3d, respectively. What is the electric field at x = d (point P)? (Use any variable or symbol stated above along with the following as necessary: k for Coulomb constant.) magnitude E = di..
What is the angular velocity in rad/s . What is the least pressure obtained inside the bottle? What will happen when this pressure is reached.
Two trains on separate tracks move toward each other. Train 1 has a speed of 129 km/h; train 2 a speed of 75.0 km/h. What is the frequency heard by the engineer on train 1
Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex
A farm truck moves due north with a constant velocity of 9.5 m/s on a limitless horizontal stretch of road. A boy riding on the back of the truck throws a can of soda upward and catches the projectile at same location on the truck bed, but 16 m fa..
Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0, What is her average speed on the return trip
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