Water drives a waterwheel (or turbine) of radius R = 3.0 m as shown in Fig. 11–47. The water enters at a speed υ 1 = 7.0 m/s and exits from the waterwheel at a speed υ 2 = 3.8m/s. ( a ) If 85 kg of water passes through per second, what is the rate at which the water delivers angular momentum to the waterwheel? ( b ) What is the torque the water applies to the waterwheel? ( c ) If the water causes the waterwheel to make one revolution every 5.5 s, how much power is delivered to the wheel? FIGURE 11-47 Problem 73.
Water drives a waterwheel (or turbine) of radius R = 3.0 m as shown in Fig. 11–47. The water enters at a speed υ 1 = 7.0 m/s and exits from the waterwheel at a speed υ 2 = 3.8m/s. ( a ) If 85 kg of water passes through per second, what is the rate at which the water delivers angular momentum to the waterwheel? ( b ) What is the torque the water applies to the waterwheel? ( c ) If the water causes the waterwheel to make one revolution every 5.5 s, how much power is delivered to the wheel? FIGURE 11-47 Problem 73.
Water drives a waterwheel (or turbine) of radius R = 3.0 m as shown in Fig. 11–47. The water enters at a speed υ1 = 7.0 m/s and exits from the waterwheel at a speed υ2 = 3.8m/s. (a) If 85 kg of water passes through per second, what is the rate at which the water delivers angular momentum to the waterwheel? (b) What is the torque the water applies to the waterwheel? (c) If the water causes the waterwheel to make one revolution every 5.5 s, how much power is delivered to the wheel?
FIGURE 11-47
Problem 73.
Study of body parts and their functions. In this combined field of study, anatomy refers to studying the body structure of organisms, whereas physiology refers to their function.
You're on an interplanetary mission, in an orbit around the Sun. Suppose you make a maneuver that brings your perihelion in closer to the Sun but leaves your aphelion unchanged. Then you must have
Question 2 options:
sped up at perihelion
sped up at aphelion
slowed down at perihelion
slowed down at aphelion
The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE DO NOT USE LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
Chapter 11 Solutions
Physics for Scientists and Engineers with Modern Physics
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