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An object of mass 10.0 kg is released from the top of an inclined plane which makes an angle of inclination of 30.0? with the horizontal. The object slides along the inclined plane. The questions refer to the instant when the object has traveled through a distance of 2.00 m measured along the slope. The coefficient of kinetic friction between the mass and the surface is 0.200. Use g = 10.0 m/s2. How much work is done by gravity?
The component of the external magnetic field along the central axis of a 50-turn coil of radius 5.6 cm increases from 0 T to 1.8 T in 3.6 s, what is the magnitude of the induced current in the coil
If a ball has a net positive charge of 57 ?C, how many electrons must be added to make the ball neutral
Michael and Misty are standing motionless together on the ice at the center of a very slippery frozen pond. what is Michael's acceleration
A very distant galaxy has an apparent bolometric magnitude of +23.5. Determine the measured flux of photons
Calculate the probability of an electron in the ground state of the hydrogen atom being inside the region of the proton. (For purposes of calculation, use a proton radius r = 0.990e-15 m. Hint: Note that r
A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (26°C) at the ocean's surface, What is the maximum possible efficiency of the system
We are told that 3 non-interacting particles of mass m bounce back and forth in one dimension between two rigid walls separated by a distance L.
A parachute dropped from a 30 meter-high cliff falls with a constant velocity of 1.5 meters per second. How long does it take for the parachute to hit the ground
A uniformly charged conducting sphere of 1.6 m diameter has a surface charge density of 9.9 µC/m2. What is the total electric flux leaving the surface of the sphere
The bunchberry flower has the fastest moving parts ever seenin a plant. Initially the stamens are held by the petals in abent position storing elastic energy liked a coiled spring. find the speed of the anther sac as it relases itspollen
Ray of light leaves point A and reflects from mirror and travels to point B. Point B is level with bottom of mirror and distance between the two is 30 cm, How far from bottom does the light ray hit the mirror
A wire whose resistance is R = 140 is cut into 9 equally long pieces, which are then connected in parallel. What is the resistance of the parallel combination
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