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A proton is projected in the positive x direction into a region of uniform electric field = (-6.80 105) N/C at t = 0. The proton travels 6.70 cm as it comes to rest. (a) Determine the acceleration o
After falling from rest from a height of 33 m, a 0.55-kg ball rebounds upward, reaching a height of 23 m. If the contact between ball and ground lasted 2.1 ms, what average force was exerted on the
Almost all video compression schemes are lossy, so compressed video sources are not preferred for high quality editing. An early application of SONET private networks was in California to link the m
Speedboat A negotiates a curve whose radius is 142 m. Speedboat B negotiates a curve whose radius is 220 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the s
The squadron commander has a mandate that the database update must be complete in less than one minute. If the topo database is 10 GB, and the link is SONET, what is the minimum standard rate requir
Testing has shown that the consortium can expect a 20:1 concentration factor for data. What is minimum bearer service to Düsseldorf the group must purchase?
A person can jump a maximum horizontal distance (by using a 45 degree projectile angle) of 5 m on Earth. The acceleration of gravity is 9.8 m/s2. What would be his maximum range on the Moon, where
A converging lens of focal length 8 cm is 20 cm to the left of a diverging lens of focal length - 6 cm. a coin is placed 12 cm to the left of the converging lens. Find (a) the location and (b) the
Assume your ability to resolve the lines is limited only by the Rayleigh criterion, the pupils of your eyes are 4.80 mm in diameter, and the average wavelength of the light coming from the screen is
Points A and B have electric potentials of 245 and 129 , respectively. When an electron released from rest at point A arrives at point C, its kinetic energy is.
The force exerted by the wind on the sails of a sailboat is Fsail = 355 N north. The water exerts a force of Fkeel = 245 N east. If the boat (including its crew) has a mass of 295 kg, what are the
A 7.50-nC charge is located 1.80 m from a 4.20-nC charge. (a) Find the magnitude of the electrostatic force that one particle exerts on the other. (b) Is the force attractive or repulsive?
What is the average distance traveled in Si by a 50 keV gamma before it has an interaction? What is the corresponding distance in Ge?
Assume that the net horizontal force is due to rolling friction only and take the free-fall acceleration to be g = 9.80 m/s^2. What is the coefficient of rolling friction mu_r for the tire under low
The coefficients of friction for plastic on wood are μs = 0.50 and μk = 0.40. How much horizontal force would you need to apply to a 3.0-lb plastic calculator to start it moving from rest.
This particular capacitor is made from two strips of aluminum foil separated by a strip of paraffin-coated paper. Each strip of foil and paper is 6.60 cm wide. The foil is 0.005 00 mm thick, and the
According to its design specification, the timer circuit delaying the closing of an elevator door is to have a capacitance of 29.0 µF between two points A and B. When one circuit is being cons
A 1300 kg car starts from rest at A , coasts 170m through a dip and comes to stop at B after coasting a distance d on level ground . if the rolling resistance is a constant force of 220N , determin
A certain metal with atomic mass 2.9 × 10-25kg has an interatomic bond with length 1.8 × 10-10 m and stiffness 47 N/m. What is the speed of sound in a rod made of this metal?
A spherical cavity is excised from the inside of the sphere. The cavity has radius and is centered at position , where , so that the entire cavity is contained within the larger sphere. Find the ele
A positive charge is at the center of a spherical Gaussian surface. The strength of the field due to the charge is the same everywhere on the surface of the sphere, and the flux through the sphere e
A chair of mass 14.0 kg lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 40.0 N directed at an angle of 42.0 degrees below the horizontal and t
If this speed is based on what would be safe in wet weather, estimate the radius of curvature for a curve marked 35 km/h. The coefficient of static friction of rubber on wet concrete is mu_{rm s}=0
A stone is thrown vertically upward with a speed of 11.0 {rm m/s} from the edge of a cliff 75.0 {rm m} high. How much later does it reach the bottom of the cliff? What is its speed just before hitt
What would happen to an organism that ran out of oxygen as a final electron acceptor in the ETC of respiration?