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Q1. You are driving home from school steadily at 80 for 150. It then begins to rain and you slow to 50. You arrive home after driving 3 hours and 20 minutes.
Q2. An ocean liner leaves New York City and travels 47.0° north of east for 123 km. How far east and how far north has it left? In other words, what are magnitudes of the components of the ship's displacement vector in the directions?
An air bubble has a volume of 1.25 cm3 when it is released by a submarine 100 m below the surface of a lake. What is the volume of the bubble when it reaches the surface
A car is traveling with a constant speed 80 miles per hour a road that makes half a circle. What is the velocity of the car
Three electric charges QA= q, QB = -q, and QC = -2q are located at the points, what is the value of the electric potential at the origin
A charge of - 0.580uC exerts an upward force of magnitude 0.170N on an unknown charge which is a distance of 0.300m directly below it. What is the unknown charge
A 950-kg car traveling west at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together. Find the speed of the wreckage just after the collision
suppose that a projectile which is subject to a linear resistive force is thrown down with a speed of Vyo which is greater than the terminal speed Vterm. Describe and explain how the velocity varies with time, and make a plot of Vy against t for t..
The maximum characteristic x-ray photon energy comes from the capture of a free electron into a K shell vacancy. What is this photon energy in keV
While a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring
An electron and a positron, each moving at 3.0*10^5 m/s, collide head on, disappear, Determine the momentum of each photon
A rescue helicopter lifts a 90-kg person straight up by means of a cable, What is the tension in the cable and How much work is done by the tension in the cable
Severe stresses can be produced in the joints by jogging on hard surfaces or with insufficiently padded shoes, Calculate the force on the ankle joint. The mass of the joggers leg is 8.6 kg.
A 71kg student runs at 6.0m/s , grabs a hanging rope, and swings out over a lake. He releases the rope when his velocity is zero, What is the angle when he releases the rope
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