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Question: A ball is thrown upward from a platform 4.0 m high with a speed of 23 m/s at an angle of 37o from the horizontal. What is the magnitude of its velocity when it hits the ground?
Compute the voltage drop along a 23 length of household no. 14 copper wire (used in 15- circuits). The wire has diameter 1.628 and carries a 12 current.
Find the resultant magnetic force exerted by the long wire on the square current loop in the figure below if I1 = 8.72 A and I2 = 4.12 A
Draw a free body diagram for each block in the system. Find the acceleration of the system and the tensions in the ropes. Coefficient of kinetic friction of 0.3 exists between the two blocks with no other frictional surfaces.
An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. compute the mass of the aluminum cup
An object is placed 13.1 cm to the left of a diverging lens of focal length -6.04 cm. Find the distance d that places the final image at infinity
In a non-uniform gas, the equation of state is valid locally, as long as the density does not change too rapidly with position. Consider a column of ideal gas under gravity at constant temperature. Find the density as a function of height, by bala..
Steel train rails are laid in 12.6m -long segments placed end to end. The rails are laid on a winter day when their temperature is -2.00C, How much space must be left between adjacent rails
A solid cylider of mass 9.8 kg and radius 28 cm is yoked to a spring as shown. What is the angular frquency of the cylinder rolling back
A small 1.85-GBq 198Au source (maximum beta-particle energy0.961 MeV, average 0.315 MeV) is enclosed in a lead shield justthick enough to absorb all the beta particles. a) Estimate the energy ?uence rate due to bremsstrahlung ata point 50 cm away.
There are two identical, positively charged conducting spheres fixed in space. The spheres are 36.2 cm apart, find the initial charge on each sphere
A car with fuzzy dice hanging from the rear view mirror by a single string drives along at a constant 25.0 m/s. If the dice have a mass of 0.030 kg, what is the angle of the string (relative to vertical)
If a person of mass M simply moved forward with speed V , his kinetic energy would be (1/2 MV^2) . However, in addition to possessing a forward motion, What is the average angular velocity of his arms and legs
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