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A skateboarder, starting from rest, rolls down a 13.7-m ramp. When she arrives at the bottom of the ramp her speed is 6.28 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 33.3 ° with respect to the ground, what is the component of her acceleration that is parallel to the ground?
During a snowball fight, two snowballs travelling towards each other collide head-on. The first is moving east at a speed of 15.3 m/s and has a mass of 0.450 kg, What is the mass of the second snowball
Calculate the specific gravity of a liquid given the following information: m = 51.50 ± 0.05 grams, mA = 32.00 ± 0.05 grams,mL = 42.50 ± 0.05 grams
The south pole of a bar magnet sits inside a rectangular, closed Gaussian surface, while the north pole sits outside. What is the magnetic flux through the closed surface
q.nbspa trent had the strong belief against cigarette smoking as his dad died from lung cancer. trent has recently
A small sculpture made of brass (rbrass = 8470 kg/m^3) is believed to have a secret central cavity. What is the volume of the secret cavity
An electrical heating coil is immersed in 4.0kg of water at 21 degrees C. What is the potential difference at which the coil operates
A point charge q = 1.45 nC is placed in the center of a spherical cavity of an isolated spherical conductor of inner radius 4 cm and outter radius 12cm
A bungee cord is stretched between two poles with a force of 443 N. What is the velocity of a wave on this bungee cord
An alpha particle (a He nucleus, containing two protons and two neutrons and having a mass of 6.48×10^-27 kg) traveling horizontally at 36.4 km/s enters a uniform, What is the diameter of the path followed by this alpha particle
What torque must the fireman exert on the hose? That is, what is the rate of change of angular momentum of water.
What is a typical neutron star density
The specifications associated with a commercial spectrophotometer are: Diffraction grating with 600 groves per mm. What is the reciprocal of the linear dispersion
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