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A bat strikes a 0.145- baseball. Just before impact, the ball is traveling horizontally to the right at a speed of 40.0, and it leaves the bat traveling to the left at an angle of 35 above horizontal with a speed of 65.0. The ball and bat are in contact for 1.85 Find the horizontal component of the average force on the ball. Take the x-direction to be positive to the right.
A 7.7 uf capacitor and a 1250 ohm resistor are connected in series to a generator operating at 50 Hz and producing an rms voltage of 208 V
q1. a golf ball with an initial angle of 50deg lands exactly 229 m down the range on a level course.a neglecting air
When an electric circuit is being assembled, a common practice is to twist together two wires carrying equal currents in opposite direction
A cylinder with a piston is filled with ideal gas. The gas temperature is held at 500K. find the thermal conductivity of the metal in the rod
Two co-centric hollow spheres have radii of R1 and R2 and have uniform surface charge densities s1 and s2. The two charge densities are positive. Derive an expression for the electric field
A cat stands on a board of wood in a frozen frictionless pond. The mass of the cat is 4.0 kg, and the mass of the board is 3.0 kg. how far does the cat move in relation to the pond
An air conditioner connected to a 105 V rms ac line is equivalent to a 13.4 capital omega resistance and a 1.18 capital omega inductive reactance in series. What is the impedence of the air conditioner
Air at 1200 K, 500 kPa expands in a polytropic process, n = 1.7, to 100 kPa. What is the final temperature and the specific work performed by the gas
Prove that when reflected, a ray of light incident upon a plane mirror rotates through an angle of 2q if the mirror is rotated through an angle of q. The mirror rotates about an axis that is perpendicular to the plane of incidence of the ray.
An electron in the beam of a typical television picture tube is accelerated through a potential difference of 20,000 V before it strikes the face of the tube, what is the eneregy of the electron in joules
when 170 v is applied across a wire that is 7.7 m long and has a 0.25 mm radius the magnitude of the current density is
the velocity of an airplane is 50km/hr due north. the plane the plane flies into a cross wind of 50km/hr due east at a right angle
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