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A circular loop of radius 2 cm carries a current of 10 A. Using exact and approximate expressions, find the magnetic flux density at
(a) the center of the loop,
(b) 10 cm on the axis of the loop, and
(c) 10 m on the axis of the loop.
What is the magnetic dipole moment of the loop?
Standing waves on a 1.7m long string that is fixed at both ends are seen at successive frequencies of 36 Hz and 54Hz A) What is the fundamental frequency B) What is the wave speed
An advertisement claims that a particular automobile can "stop on a dime." What net force would actually be necessary to stop an automobile of mass 920kg traveling initially at a speed of 56.0km/h in a distance equal to the diameter of a dime, whi..
A 10.0 kg cylinder rolls withoutslipping on a rough surface. At an instant when its center ofgravity has a speed of 12.0 m/s. find the rotational kinetic energy about its center of gravity
An automobile club plans to race a 780 kg car at the local racetrack. The car needs to be able to travel around several 170 m radius curves at 85 km/h. What must the banking angle of the curves be so that the force of the pavement on the tires of the..
Two objects are connected by a string passing over a light frictionless pulley.Compute the speed of each object just as they pass each other
a block of mass 2.10 kg is pushed 2.24 m along a frictionless horizontal table by a constant 19.0 n force directed
1. a pulley of radius 0.3 m is rotating counter-clockwise and is pulling a weight upward. the weight slows the spinning
A 1 centimeter diameter pipe widens to 3 centimeter, then narrows to 6.8 millimeter. Liquid flows through the first segment at a speed of 3 meter per second. Find the speed in the second and third segments
What is the angular momentum of a 0.270 kg ball rotating on the end of a thin string in a circle of radius 1.40 m at an angular speed of 7.30 rad/s
The graph shows how the force component F cos along the displacement varies with the magnitude s of the displacement. Find the work done by theforce. (Hint: Recall how the area of a triangle is related tothe triangle's base and height.)
A car and a truck are both travelling at the speed limit of 60 km/h but in opposite directions. Calculate the speed of the combined wreck immediately after the collision
johnny throws a shotput at an angle of 45.deg and it travels a horizontal distance of 30. meters. if he releases the
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