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A skier starts from rest at the top of a hill that is inclined at9.5°with the horizontal. The hillside is 150 m long, and the coefficient of frictionbetween snow and skis is 0.0750. At the bottom of the hill, thesnow is level and the coefficient of friction is unchanged. How fardoes the skier glide along the horizontal portion of the snowbefore coming to rest?
What fractional increase in tension of one wire will lead to the occurrence of 2 beats/s when both wires oscillate simultaneously.
An elevator releases 11200J of gravitational potential energy as descending 4m between floors. How much does elevator weigh.
A certain diatomic molecule has a vibrational frequency of 1.35 × 1014 Hz and is in the third vibrational state and the L = 9 rotational state (I = 3.0x10-46 kg*m2. what is the maximum frequency radiation that is emitted
A proton (mass 1.67 x 10^27kg) is moving at 1.55 x 10^6m/s directly toward a stationary helium nucleus (mass 6.64 x 10^27kg). what is the helium's velocity
Which kinetic energy equals to rotational motion
A deep-space vehicle moves away from the Earth with a speed of 0.735c. An astronaut on the vehicle measures a time interval of 3.05 s to rotate her body through 1.00 rev as she floats in the vehicle. What time interval is required for this rotation a..
A Carnot engine with a hot-reservoir temperature of 360 has the same thermal efficiency. What is the cold-reservoir temperature in C?
A car travelling at 25.0 m/s runs out of gas while travelling up a 33.0 degree slope. How far up the hill would it coast before starting to roll back down.
Consider a spring handing vertically from a ceiling, attached to a mass m of 2 kg. The spring constant, k, is 30 N/m. How far does the spring travel downwards before it reverses direction
q1. chuck norriss razor blade has an output force of 2500 lbs is used to shear his burley face. the shaving blade has
a 2.1103 kg car starts from rest at the top of a driveway that is sloped at an angle of 20 degrees with the horizontal.
Electrons are accelerated from rest through an electric potential difference of 250kV, then the potential difference is changed to 60kV. What is the ratio of the two de Broglie wavelengths produced by the electron
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