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Calculate the electric field at one corner of a square 1.10 m on a side if the other three corners are occupied by 4.30 multiplied by 10-6 C charges.
Two blocks, one 0.8 kg and the other 2.0 kg are connected by a massless string over a frictionless pulley. The coefficient of kinetic friction is 0.14, and the downward ramp angle is 60 degrees. De
The confused dog keeps running and passes the bone. How long after the merry-go-round starts to turn do the dog and the bone draw even with each other for the second time?
Calculate the tension required to obtain the proper frequency, Calculate the wavelength of the string's vibration, What is the wavelength of the sound produced in air?
The net force on the wire is measured using a balance and found to be zero. What is the magnitude of the magnetic field?
A swimmer heads directly across a river, swimming at 1.9 m/s relative to the water. She arrives at a point 34 m downstream from the point directly across the river, which is 80 m wide. What is the s
A 10-cm long thin glass rod is uniformly charged to 50 nC. A small plastic bead, charged to - 5.2 nC, is 4.5 cm from the center of the rod. What is the magnitude of the force on the bead?
An electric field of intensity 3.4 kN/C is applied along the x-axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true:
Two 10-cm-diameter charged thin rings face each other, 18 cm apart. The left ring is charged to +10 nC and the right ring is charged to +20 nC. a. What is the electric field at the center of the le
A man drops a baseball off of the top of the Empire State Building. If the action force is the pull of the Earth on the ball, then what is the reaction force?
A grinding wheel is initially at rest. A constant external torque of 45.8 N· m is applied to the wheel for 18.8 s, giving the wheel an angular speed of 596 rev/min. The external torque is th
Water (η = 1.00 10-3 Pa·s) is flowing through a horizontal pipe with a volume flow rate of 0.050 m3/s. As the drawing shows, there are two vertical tubes that project from the pipe. From
The distance from the Earth to Polaris is approximately 5.35 10^18 m. How long would it take to disappear from our vision if it were to burn out today?
He holds a flashlight between his feet and manages to point it at the mirror. At what angle of incidence must the light strike the mirror so the light will reach his eyes?
What speed do you predict for the block at the top of the track? (c) Does the block actually reach the top of the track, or does it fall off before reaching the top?
Using the concepts of convection currents and Coriolis effect, explain how moisture from the Gulf of Mexico falls as rain over Kentucky
A 30 g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. What is the momentum of the car?
The sound of a mosquito is produced when it beats its wings at an average of 600 beats per second. What is the frequency of the sound waves?
The final temperature is less that 70C? B. the final temperature is greater than 80C? C. the final temperature is between 70 C and 80C? Or D. the water temperature will fluctuate?
A 2.30-m-long string is under 24.0 of tension. A pulse travels the length of the string in 60.0 ms what is the mass of the string
A string of 22 identical Christmas tree lights are connected in series to a 120 V source. The string dissipates 76 W. What is the equivalent resistance of the light string?
What changes in your analysis will make it apply to this situation? What if? Next assume the magnet is strong so that it noticeably attracts the screw over a distance of a few centimeters.
Light with a wavelength of 618 nm passes through a slit 7.52 wide and falls on a screen 1.88 m away. Calculate the linear distance on the screen from the central bright fringe to the first bright f
A 40-kg shell is fired from a gun with a muzzle velocity 60 m/s at 39o above the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose s
An astronaut on Venus drops a rock straight downward from a height of 1.10 m. If the acceleration of gravity on Venus is 8.93 m/s2, what is the speed of the rock just before it lands?