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You are standing on a 50m cliff and throw a ball upwards at 8.2m/s
- calculate the maximum height the ball will reach
- calculate the time it will take the ball to return where it started
- calculate the speed of the ball when it hits the ground.
A turntable 1.50m in diameter rotates at 77.0rpm. Two speakers, each giving off sound of wavelength 30.7cm , are attached to the rim of the table at opposite ends of a diameter.
A softball is hit into the air (ignore air resistance) at an angleof 35 deg at a height of 0.7m. It barely goes over a fence 2m tall which is 60maway. What is the initial velocity of the ball?
Two plastic spheres, each carrying charge uniformly distributed throughout its interior, are initially placed in contact and then released, Find the maximum acceleration achieved by the sphere of mass 55.0g
Someone steps on your toe, exerting a force of 300 N on an area of 1.1 cm2. What is the average pressure on that area in atm
A particle with a charge of q = -5.40 nC is moving in a uniform magnetic field of vec{B}=( -1.24 T ) hat{z}. The magnetic force on the particle is measured to be vec{F}= ( -7.60×10-7 N )hat{y}. find v_x, the x component of the speed of the particl..
At t=0, the displacement x(0) of a block attached to a spring is -850 cm. The block's velocity v(0) is then -.920m/s, what is the abgular frequency of this system
imagine that you fire a proton at the nucleus of a gold atom which contains 79 protons and 118 neutrons. what does the
A grinding wheel in the shape of a solid disk is 0.220 meter in diameter and has amass of 2.50 kilogram. Evaluate how far would it have to free fall to obtain the same amount of kinetic energy
A spherical capacitor is formed from two concentric spherical conducting shells separated with vacuum. The inner sphere has a radius of 12.4 cm, and the outer sphere has a radius of 15.0 cm. A potential dissimilarity of 120 V is applied to the capaci..
A floodlight with a mass of 23 kg is used to illuminate the parking lot in front of a library. the floodlight is supported at the end of a horizontal beam that is hinged to a vertical pole, as shown. a cable that makes an angel of 19 degrees with ..
Chinook salmon are able to move through water especially fast by jumping out of the water periodically. Determine the average velocity of the fish for the entire process of jumping and swimming underwater
A uniform rod of mass m and length l is kept vertical with the lower end clamped. What wil be the linear speed of the free end at this instant
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