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Q1. A skier moving at 4.50 m/s encounters a long, rough horizontal patch of snow having coefficient of kinetic friction 0.230 with her skis. How far does she travel on this patch before stopping?
Q2. A college student produces about 100 kcal of heat per hour on the average. What is the rate of energy production in watts?
Q3. If the electric motor draws 9.3 kW as the car moves at a steady speed of 37.0 m/s, how far would the car travel before it is "out of juice"?
A 2.0-C charge moves with a velocity of (2.0i + 4.0j + 6.0k) m/s and experiences a magnetic force of (4.0i - 20j + 12k) N. The x component of the magnetic field is equal to zero. Find out the y component of the magnetic field.
when the field is vertical to the plane of loop, when the field makes a 90.0 angle with the normal to plane.
What are the total displacement and angle of displacement
An average force of 201 N is exerted to draw the string back 1.3 m. unless otherwise directed, imagine that air resistance is negligible. Illustrate energy bar graphs to solve the difficulty .
What is the gravitational energy of stone-Earth System
Find out the minimum sound intensity
A 12 kg weather rocket generates a thrust of 250 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 560 N/m, is anchored to the ground. What is the rocket's speed while the s..
Which vector has the largest x component and y component
Eight identical, non-interacting particles are placed in a cubical box of sides L = 0.2 nm. Find the lowest energy of the system (in electron volts) and list the quantum numbers of all occupied states if (a) particles are electrons and (b) particles..
A 260 wooden raft floats on a lake. When an 80 man stands on the raft, it sinks 5.0 deeper into the water. When he steps off, the raft vibrates for a while. What is the frequency of vibration.
And if the plane could fly without this pilot, how much force would the plane require to maintain the equal acceleration?
The coefficient of kinetic friction between block and ramp
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