A rubber ball of mass 149 g is thrown directly at a wall
A rubber ball of mass 149 g is thrown directly at a wall with a speed of 4.7 m/s. If it bounces directly back at 55% of the original speed, what is the magnitude of the impulse imparted by the wall on the ball?
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A 1.0-m rigid horizontal support is hung by two cables. One cable is brass and The other cable is high-density polyethylene plastic. At room temperature (21°C), the cables measure 3.50 m vertically.
The backfill soil's unit weight and angle of internal friction are 17.2 kN/cubic meter and 31 degrees respectively and the angle of wall friction friction between backfill and wall is 20 degrees. Find the total active earth pressure against the wa
A 1460-kg racecar is driving around a circular track of radius 161 m. What is the magnitude of the net force acting on the vehicle
Water flows through a horizontal pipe of cross-sectional area 10.0 cm2 at a pressure of 0.250 atm. What is the pressure at the valve
A rubber ball of mass 149 g is thrown directly at a wall with a speed of 4.7 m/s. what is the magnitude of the impulse imparted by the wall on the ball
What is the normal depth in a 4-foot wide rectangular channel that conveys a discharge of 100 CFS and has a bed slope of 2% with a Manning's roughness coefficient of 0.025
A 120 V rms voltage at 1000 Hz is applied to an inductor, a 2 uF capacitor and a 100 ohm resistor. what is the value of the inductor
What is the optimal level of production of wine decanters and what is the marginal revenue from the last wine decanter sold and what are the total revenue, total cost, and net benefit (profit) from selling the optimal number of wine decanters?
A trapezoidal channel with a bottom width of 4 feet and side slopes 2:1 (H:V) and a bed slope of 1 percent conveys a discharge of 50,000 gpm. Assume n = 0.025. Compute the normal depth
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