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A car drives on a road which begins flat, then goes up and over the top of a hill and then goes down into a dip and back up to level ground. 11) Compare the magnitude of the normal force acting on the car at each point: Nflat > Ntop of hill > Nbottom of dip Nflat > Nbottom of dip > Ntop of hill Nbottom of dip > Ntop of hill > Nflat Nbottom of dip > Nflat > Ntop of hill Ntop of hill > Nbottom of dip > Nflat Ntop of hill > Nflat > Nbottom of dip 13) What is the acceleration of the car at the bottom of the dip? 0 m/s2 9.8 m/s2 35.2 m/s2 45.0 m/s2 54.8 m/s2 14) What is the minimum speed at the top of the hill (assuming R = 20 m here, too) for the car to leave the road? 10 m/s 12 m/s 14 m/s 16 m/s 18 m/s 15) What is the acceleration of the car if it just begins to leave the road? 0 m/s2 4.9 m/s2 9.8 m/s2 14.7 m/s2 19.6 m/s2
A bumper car with mass m1 = 115kg is moving to the right with a velocity of v1 = 4 m/s. A second bumper car with mass m2 = 95 kg is moving to the left with a velocity of v2 = -3.7 m/s. The two cars have an elastic collision. Suppose the surface is fr..
An Oscilloscope grid is calibrated so that one square represents 1-V vertically and 1 msec horizontally. If the height of a square wave pulse display is 6 squares, the width of the pulse is 7 squares, and the cycle of the wave is 16 squares, the a..
A lake is 28.3 meters deep at its deepest point. The density of water in the lake is 1000 kg/m^3. what is the absolute pressure at the bottom of the lake
Calculate the mass flow rate (in grams per second) of blood (Ï = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 47 cm/s
Dan is gliding on his skateboard at 4. He suddenly jumps backward off the skateboard, kicking skateboard forward at 8.00 (as measured by an observer on the ground). Dan's mass is 60 and skateboard's mass is 5.00 .How fast is Dan going as his fee..
A camera's flash uses the energy stored in a 260?F capacitor charged to 190V . The current in the charging circuit is not to exceed 21mA, What's the resistance in the charging circuit
A solid, uniform ball rolls without slipping up a hill, How far from the foot of the cliff does the ball land
What is the magnitude of the force applied throughout this time? What is the direction of the force applied throughout this time?
The acceleration of a bus is given by ax(t)=?t, where ? = 1.26m/s3 is a constant, If the bus's position at time t1 = 1.12s is 6.01m , what is its position at time t2 = 2.13s
A 12.5 gram bullet is fired into a board. The board is subjected to a force of 3.50x104 Newtons when it hits the board. If the bullet travels 3.50 cm before coming to a stop, what was the initial speed of the bullet
A charge of -2.85 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.105 m. The charges on the circle are -3.8 µC at the position due north and +4.55 µC at the position du..
A 668-kg elevator starts from rest and moves upward for 4.30 s with constant acceleration until it reaches its cruising speed, 1.65m/s. What is the average power of the elevator motor
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