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A rectangle has an area of 28.14 cm2. When both the length and width of the rectangle are increased by 1.80 cm, the area of the rectangle becomes 51.00 cm2. Calculate the length of the longer of the two sides of the initial rectangle.
10 A of current flows through a wire oriented perpendicular to a magnetic field strength of .2T, What is the magnetic force per unit length on the wire?
Newton's apple was a sphere with a 5cm radius and density of 850kg/m^3. Its drag coefficient is 0.60 and the density of air is 1.2kg/m^3. Find the apple' terminal velocity
A square conducting loop has side a and carries clockwise current I as shown in the diagram. calculate the magnitude and direction of the magnetic field at the center of the square
The position of a particle in cm is given by x = (7) cos 9?t, where t is in seconds, What is the frequency, What is the period, What is the amplitude of the particle's motion
The aurora is caused when electrons and protons, moving in the earth's magnetic field of ?5×10?5 T, collide with molecules of the atmosphere, find Radius of the electron and proton in m
Four solid plastic cylinders all have radius 2.75 cm and length 6.42 cm. Find the charge of each cylinder given the following additional information about each one.
A high-speed flywheel in a motor is spinning at 450 when a power failure suddenly occurs. The flywheel has mass 38.0 and diameter 78 . The power is off for 25 and during this time the flywheel slows due to friction in its axle bearings.
A student holds a laser that emits light of wavelength 633nm. The beam passes through a pair of slits separated by 0.3mm, Find the speed of the first-order maxima on the screen
A blue car of length 4.41 m is moving north on a roadway that intersects another perpendicular roadway (see figure below). The width of the intersection from near edge to far edge is 30.0 m.
Find the difference in decibel levels β1 & β2 of a sound source is related to the ratio of its distances r1 & r2 and find the average power generated by the horn.
Two parallel wires of length 17 m are separated by a distance of a = 0.13 cm, What is the magnetic force on each wire
A paperweight, when weighed in air, has a weight of W = 6.6 N. When completely immersed in water, Find the volume of the paperweight
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