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A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.5 m/s . Two seconds later the bicyclist hops on his bike and accelerates at 2.4m/s2 until he catches his friend. How much timedoes it take until he catches his friend (after his friend passeshim)? What is his speed when he catches up? How far has he traveled in this time?
A waiter holds two plates of food in one hand. Hiss forearm has a mass of 2.2 kg and the center of mass of his forearm is located 13 cm from his elbow joint. find the torque produced by the mass of the two plates
Your teacher tosses a basketball. The ball gets through the hoop (lucky shot). How long does it take the ball to reach the hoop
A uniform magnetic field (0.20 T) is directed 35 degrees above the horizontal, penetrating a horizontal circular coil (radius 6.0 cm)
A criminal is escaping across a rooftop and runs off the roof horizontally at a speed of 5.4 m/s, hoping to land on the roof of an adjacent building. Air resistance is negligible. The horizontal distance between the two buildings isD, and the roof of..
An airplane pilot sets a compass course due west and maintains an airspeed of 213km/h. Find the magnitude of the wind velocity
A skier is gliding along at 3.6 m/s on horizontal, frictionless snow. He suddenly starts down a 10 degree incline. His speed at the bottom is 17 m/s. What is the length of the incline
A hockey stick delivers an impulse of 4.0{\rm kg \cdot m/s} causing the puck to move off in the opposite direction with the same speed. what is the mass of the puck
A quarterback claims that he can throw the football a horizontaldistance of 196.6 m (215 yd). Furthermore,he claims that he can do this by launching the ball at therelatively low angle of 25° above the horizontal. To evaluate his claim, determine ..
make use of the force equation of equilibrium with torques to compute around the second pivot pt, fine the women's position when the beam is about to tip.
A compass needle initially points 19.7o E of N due to the Earth's magnetic field. What is the magnitude of the current in the wire
At what point the electric potential zero. A sphere of mass 1.9 × 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a constant angle of 17° with the vertical. Find (a) the magnitude of that push a..
Consider a system of 12 particles with two energy levels. Plot the number of microstates corresponding to each value of the total energy if (a) the particles are indistinguishable and (b) if the particles are distinguishable.
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