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Q1. A wheel 38 cm in diameter accelerates uniformly from 240 rpm to 360 rpm in 6.5 s. How far will a point on the edge of the wheel have travelled in this time?
Q2. A 63 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.8 m/s.
If the trampoline behaves like a spring of spring constant 6.2×104 N/m, how far does he depress it?
Q3. A water pipe is inclined 32.0° below the horizontal. The radius of the pipe at the upper end is 3.00 cm. If the gauge pressure at a point at the upper end is 0.117 atm, what is the gauge pressure at a point 2.65 m downstream, where the pipe has narrowed to a 1.00 cm radius? The flow rate is 20.0π cm3/s
A diver 40 m deep in 10 degree Celcius fresh water exhales a 0.50-cm-diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 degrees Celcius? Assume that the air bubble is always in..
A string of 13 identical Christmas tree lights are connected in series to a 127 V source. The string dissipates 63 W. What is the comparable resistance of light string.
The angular momentum of the electron as it moves around the center of the circle is 1.40 × 10-25J•s.Find the radius of the circular path.
How much work is completed by the system in this process. Determine the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C. How much work is completed by the system in this process.
Which state is best illustrates kinetic friction
What is closing equilibrium temperature of the tin-water
What is the coefficient of static friction
Phonology: All the data for this problem come from a conservative dialect of Vèneto, a Romance language spoken in northern Italy near the city of Padua.
How much energy is given to the cell during this pulse. How many years would it take the earth to move 1.0 mm at this speed.
Determine the greatest vertical displacement of the pendulum (height). The mass lost by the rocket during these 30.0 is negligible. What impulse does an engine impart to the rocket?
Determine the new planets mass density to earth mass density
Compute direction of Sparkys net displacement
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