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A 2 kg projectile is shot straight up with initial velocity v0= 50 m/s. (g=9.8 m/s2) find:
a. initial kinetic energy
b. Maximum value of the gravitational potential energy
c. peak height of its trajectory
A child slides across a floor in a pair of rubber-soled shoes. The friction force acting on each foot is 20 N, what is the horizontal distance traveled by the sheared face of the sole
When the temperature of a metal cylinder is raised from 0.0°C to 113°C, its length increases by 0.26%. Find the percent change in density
A 4.4-g bullet leaves the muzzle of a rifle with a speed of 314 m/s. What force (assumed constant) is exerted on the bullet
A conducting rod is moved in a magnetic field of 0.5T as shown. The bar is 0.4m long and has a velocity of 12 m/s. What is the induced voltage across the bar
A hairpin configuration is formed of two semiinfinite straight wires that are 3.42 cm apart and joined by a semicircular piece of wire (whose radius must be 1.71 cm, Find the magnetic field at the origin of the coordinate system
The speed of an ion in a particle accelerator is doubled from 0.400c to 0.800c. Determine the final relativistic momentum of the ion
you throw a stone upward with an intial speed of 5.8m/s from a third-story office window. Find the speed of the stone just before it hits the ground
A 0.51 kg mass at the end of a spring vibrates 9.0 times per second with an amplitude of 0.18 m. Determine the total energy of the system
A car moves in a flat, circular path of radius R on a surface with a coefficient of kinetic friction of 0.25 and a coefficient of static friction of 0.35. How long does it take the car to complete one orbit
If n=10, what is the largest value of the angular momentum l in this shell, How many electrons can be placed in this shell
High-speed stroboscopic photographs show that the head of a 280-g golf club is travelling at 58 m/s just before it strikes a 46-g golf ball at rest on a tee. After the impact, the club head travels (in the similar direction) at 52-m/s. determine t..
In an experiment on the transport of nutrients in a plant's root structure, two radioactive nuclides X and Y are used. What is the half-life of isotope X
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