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A bullet is fired with a certain velocity at an angle above the horizontal at a location where g=10.0m/s^2. The initial x and y components of its velocity are 86.6 m/s and 50.0 m/s respectively. How long does it take before the bullet hits the ground? Assume that the bullet lands at the same height it was launched?
A 9.14-m ladder with a mass of 24.2 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 254 N. What is the net torque acting on the ladder
An object with mass m1 = 4.90 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley, Find the magnitude of the acceleration of each object
What are the x-component and y-component of the velocity.
The origin of the coordinate system and with a label at their heads. Two of these vectors are given in terms of the unit-vectors I and j as
The output voltage of an AC generator is given by ?v = (120 V) sin (50?t). The generator is connected across a 25.0-? resistor. Find the power delivered to the resistor
A rod is measured to be exactly 19.80 cm long using a steel ruler at a temperature of 21.1°C. What is the coefficient of thermal expansion for the material of which the rod is made
As measured in Earth rest frame, a spaceship traveling at 0.964c takes 10.0 years to travel between planets. How long does the trip appear to take for someone on the spaceship
The allowed energies of a simple atom are 0.0 eV, 3.0 eV, and 4.0 eV. What is the minimum speed the electron could have after the collision
A 72.4 man steps off a platform 3.02 above the ground. He keeps his legs straight as he falls, What is the magnitude of the reaction force to the force
A car is stopped for a traffic signal. When the light turns green, the car accelerates, increasing its speed from 0 to 4.50 m/s in 0.852 s. What are the magnitudes of the linear impulse and the average total force experienced by a 65.0 kg passenger i..
Two closely spaced circular disks form a parallel-plate capacitor. What are the diameters of the disks
The top of Mt. Everest is 8750 m above sea level. Assume that sea level is at an average Earth radius of 6.38×10^6 m. What is the magnitude of gravitational acceleration at the top of Mt. Everest? Mass of the Earth is 5.97×10^24 kg.
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