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A snow skier, starting from rest, goes downhill for 5.00s and reaches a level spot of smooth snow. A student notices that the skier covers the level horizontal distance of 7.00m in 1.75s.
A: What is average velocity on level spot?
B: What is skier's velocity at bottom of hill?
C: What is the skier's velocity at end of the 7.00m?
D: What is skier's average acceleration down the hill?
An air-track glider attached to a spring oscillates with a period of 1.50s . At t=0s the glider is 5.10cm, What is the phase constant
A solid disk rotates in the horizontal plane at an angular velocity of 0.036 rad/s with respect to an axis perpendicular to the disk at its center, what is the angular velocity of the disk
What intensity level of the horn's sound is observed by somebody waiting at an intersection 58m from the train.
A uniform upward directed electric field of magnitude 1.4*10^-6 N/C has been setup between tow horizontal plates by charging the lower plate positively abnd the lower plate negatively, what is the vertical deflectio of the mass when it exits the pl..
The position of a particle as it moves along a y axis is given by y = (2.0 cm) sin (?t/4), What is the instantaneous acceleration of the particle at t = 0, 1.0, and 2.0 s
A 1500 -kg automobile travels at a speed of 75 -km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop.
While John is travelling along a straight interstate highway he notices that the mile marker reads 243 km john travels until he reaches his path to the 178 km marker what is john's resultant displacement from the 243 km marker.
A relief airplane is delivering a food package to a group of people stranded on a very small island. What is the speed of the package when it hits the ground in mph
Two lightbulbs operate on the same potential difference. Bulb A has four times the power output of bulb B. What is the ratio of the current in bulb A to the current in bulb B?
If a metric ton is 1 x10^3 kg, how many 88 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton.
Assume the freezer operates for 5 hours each day, how much power does it require while operating
In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016kg and a radius of 9.90km, What is the escape speed from the asteroid
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