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Your airplane is caught in a brief, violent downdraft. To your amazement the pretzels on your seat-back tray rise vertically, and you estimate their upward acceleration relative to the plane at 2m/s2. Evaluate the downward acceleration of the plane?
find the force exerted by the rope on the bucket. A metallic object is given the negative charge by the process of induction. What happens to object's mass.
A hockey puck is sliding across the ice at 10.0 m/s. A player’s stick momentarily comes in contact with the puck and accelerates it to 24.0 m/s (without changing its direction). The mass of the puck is 0.170 kg. How much work is done on the puck by t..
A hollow metal sphere carries a charge of 5.0 μC. A second hollow sphere with a radius that is 4 times the size of the first carries a charge of 15.0 μC. How much charge is on the smaller sphere
A small bulb is rated at 7.5 W when operated at 125 V. The tungsten filament has a temperature coefficient of resistivity a = 4.5 ? 10-3 / °C. What is the resistance of the filament (in ohms) at room temperature
A three-step cycle is undergone by n moles of an ideal diatomic gas: (1) the temperature of the gas is increased from T_1 to T_2 at constant volume, compute the efficiency of the cycle in terms of T_1 and T_2
A 282 kg log is pulled up a ramp by means of the rope that is parallel to the surface of the ramp. The ramp is inclined at 23.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.87, and the log has..
A 4.60 kg block of ice at 0°C is added to an insulated container partially filled with 11.6 kg of water at 15.0°C. Find the mass of the ice that was melted
A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
A uniform thin rod of length 0.7 m and mass 3.0 kg can rotate in a horizontal plane about a vertical axis through its center. what is the bullet's speed just before impact
A new spaceship that can travel at a speed of 0.900c. Mary, the astronaut,boards the spaceship to travel to Barnard's star, which is the second nearest star to our solar system after Alpha Centauri and is5.98 ly away.
A patient is going to be prescribed bifocals which will be 2.90 cm from the eye. Without the bifocals, what is the patient's far point
a steel wire of length 1.6 m and diameter 1.10 mm is joined to an aluminum wire of identical dimensions to make a
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