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A small sphere with a mass of 1.0 g is suspended at the end of an insulating string of length 50 cm within a uniform horizontal electric eld of 12,000 N/C. The small sphere is held in static equilibrium so that it is 10 cm above the lowest vertical position. What is the value of the charge on the small sphere?
Baseball and the Washington Monument On August 25, 1894, What was the ball's direction of motion when caught? answer in degree
A 9.0-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire, compute the strength of the magnetic field
Suppose a 64.0 kg boy and a 48 kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.00 m/s2, find out the magnitude of the acceleration of the boy toward the girl.
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 30 degree angle from the horizontal, at what initial speed must he throw the ball so that it goes through the basket without striking the back..
A student walks 24 m from her math class and then turns 90° and walks 10 m to her locker, that is directly north of her class. What is her total displacement.
Find out the magnitude of the velocity of the heavier fragment relative to the ground just after explosion.
A 0.24-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, Find the tension in the stick
An elevator cable can withstand a maximum tension of 19,500N before breaking. The elevator has a mass of 480 kg and a maximum acceleration of 2.24 m/s2. Engineering safety standards require that the cable tension never exceed two-thirds of the breaki..
The excess internal energy of metabolism is exhausted through a variety of channels, such as through radiation and evaporation of perspiration. Calculate the rate at which you lose energy by exhaling humid air
If a disk rotating at 10 rad/s has a moment of inertia of 0.5 kg m^2. Then another disk with a total mass of 5 kg, What is the angular speed of the new system in units of rad/s
If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop?
A pump discharges water at a rate 100kg/s with a guage pressure of 2atms. the flow is transported by a 10 cm diameter pipe up to an elevation of 5m
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