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A skier is gliding along at 3.09 m/s on horizontal, frictionless snow. He suddenly starts down an 11.9 degree incline. His speed at the bottom is 26.5 m/s.
a) Compute the length of the incline?
b) Compute how long does it take him to reach the bottom?
A 75 kg solid sphere with a 19 cm radius is suspended by a vertical wire attached to the ceiling of a room. A torque of 0.35 N m is required to twist the sphere through an angle of 0.75 rad. What is the period of oscillation when the sphere is releas..
At a height of 1500m, a dive bomber in a vertical dive at 300 km/h shoots a cannon at a target on the ground. What will be the impact speed of the projectile on the ground
A 11.9-m-long wire of mass 132g is stretched under a tension of 250N . A pulse is generated at one end, Where will the two pulses first meet
A physicist\'s left eye is myopic (i.e., nearsighted). This eye can see clearly only out to a distance of 21 cm. what is the power in Diopters
An athlete training for an event does 6.53 104 J of work during a workout and gives off 6.17 105 J of heat, Determine the magnitude of the change in internal energy of the athlete
A mass-spring system oscillates on a horizontal frictionless surface with an amplitude of 3.06 cm. If the spring constant is 260 N/m and the mass is 0.470 kg, determine the mechanical energy of the system
Two protons are separated by a distance of 0.06 cm. What is the magnitude of the electric force for the protons
Consider a 0.200kg pendulum bob that is in an upright circular cylinder with a 0.0193 diameter, Draw a free body diagram and calculate the tension and the centripital acceleration at the bottom of the pendulum's swing
The uncertainty of the position of an electronis 0.46nm. Calculate the minimal uncertainty of its momentum
in a classical harmonic oscillator a particle with energy e moves oscillates in the classically allowed regionnbspx lt
The displacement amplitude of a sound wave of frequency 300 Hertz is 10-7 m. Determine the pressure amplitude of this wave
the planet mars requires 2.35 years to orbit the sun which has a mass of 2 times 1030 kg in an almost circular
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