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A 78-kg person in a moving car stops during a car collision in a distance of 0.78m. The stopping force that the air bag exerts on the person is 8000 N.
Determine the magnitude of the acceleration at which the airbag brings the person to a stop
Determine the speed of the person before the air bag opens up.
Determine the time interval for the airbag to bring the person to a stop.
On an essentially frictionless, horizontal ice rink, a skater moving at 6.0m/s encounters a rough patch, Use the work-energy theorem to find the length of this rough patch.
how fast was the car going on the table. find the vertical and horizontal components of the pendulum's displacement.
Unpolarized light with an intensity of 830 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
Compute the force of gravity between a newborn baby (mass = 4 kg) and the planet Mars (mass = 6.4 x10^23 kg), when Mars is at its position closest to Earth (distance = 8.0 x10^10 m).
a 753 kg elevator starts from rest. it moves upward for 3.04 seconds with a constant acceleration until it reaches its cruising speed of 2.07 m/s
Heather and Matthew walk eastward with the speed of 0.99 m/s east. If it takes them 37 minutes to walk to the store, how far have they walked? Reply in units of km.
In a photoelectric effect experiment, visible radiation of energy 2.68 eV is incident upon a metal of unknown work function. determine the work function of the metal
If Jessica can accelerate at a speed of 5-m/s^2, how long will it take for her to reach a speed of 30.0 m/s.
At time a grinding wheel has an angular velocity of 21.0. It has a constant angular acceleration of 26.0 until a circuit breaker trips at time = 1.6. From then on, the wheel turns through an angle of 435 as it coasts to a stop at constant angular dec..
Four copper wires of equal length are connected in series. The cross sectional areas are 1 cm2, 2 cm2, 3 cm2, and 5 cm2, What is the voltage across the 2 cm2 wire in units of volt
Two particles are fixed on x-axis. Particle 1 of charge q1 = -2×10^-7 C at x = 20 cm and particle 2 of charge q2 = +8×10^-7 C at x = 70 cm. At what x coordinate on the axis is net electric field produced by the particles equal to zero.
The barricade at the end of subway line has a large spring designed to compress 2.00 m when stopping a 1.00 x 10^5 kg train moving at 0,500 m/s. What speed would the train be going if it only compressed the spring 0.500 m?
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