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Q1. A race car has a mass of 718 kg. It starts from rest and travels 45.0 m in 3.0 s. The car is uniformly accelerated throughout the entire time. What net force is exerted on it?
Q2. A flight attendant pulls her 60 N flight bag a distance of 278 m along a level airport floor at a constant velocity.
Find out the coefficient of kinetic friction between flight bag and floor.
A child on a sled reaches the bottom of a hill with a velocity of 11.0, what is the magnitude of the average retarding force on the sled on the horizontal straightaway
A water pipe having a 2.60 cm inside diameter carries water into the basement of a house at a speed of 0.827 m/s, find water pressure (in kPa) at the second floor
A 10 nC point charge is at the center of a 2.0m x 2.0m x 2.0 mcube. What is the electric flux through the top surface of the cube
Coherent light from a sodium-vapor lamp is passed through a filter that blocks everything except for light of a single wavelength. compute the wavelength of the light that falls on the slits
A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to ?(t)=?t+?t3, What is the initial value of the angular velocity
A 6.00 V lantern battery is connected to a 10.5 (ohm) lightbulb, What is the internal resistance of the battery
Two masses 3kg and 5kg are held around a pulley as shown in the figure. When the two masses released, what will be the acceleration of the 5kg mass
A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North. 27.3 seconds after it is released, What is the ratio of the magnitude of E2 to the magnitude of E1
A sailboat runs before the wind with a constant speed of 3.7 m/s in a direction 32 degrees north of west. How far north has the sailboat traveled in 21 min
What would be the equilibrium temperature when a 253-g block of copper at 281^circ C is placed in a 137g aluminium calorimeter cup containing 817-g of water at 14.5^circ C.
q1. a child is sliding on a sled at 1.6 rm ms to the right. you stop the sled by pushing on it for 0.80 rm s in a
What is the magnitude of the electric field at this point?
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