From the relationship between speed, torque, and power produced by an electric motor, determine the torque (in units of Nm) that can be produced by an electric motor with a power of 200 HP and rotation speed of 3000 RPM!
Q: A torque of 170 N.m does 4715 J of work on a rotating flywheel. If the flywheels initial kinetic…
A: Given : τ = 170 N.m W = 4715 J Ki = 1320 J
Q: The puck in the figure below has a mass of 0.120 kg. The distance of the puck from the center of…
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Q: If a car engine has a power, P. Write an expression for the time it will take to accelerate from w…
A: We know, power is the rate of change of work for a given time interval. Using the given equation…
Q: An automobile engine develops a torque of 600 N*m at 4000 r/min. What is the horsepower of the…
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Q: The turntable in a microwave oven has a moment of inertia of 0.038 kg⋅m2 and is rotating once every…
A: Given, moment of inertia =0.038 kg.m2time period T =5.0 secwe have to calculate the kinetic energy.
Q: , assuming that th
A: Given as, Length (L) = 1 m Acceleration due to gravity (g) = 9.8 m/s2
Q: A disk of mass 3.3 kg and radius 0.25 m is initially spinning at 510 rpm. A brake is applied until…
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Q: The figure shows a rigid assembly of a thin hoop (of mass m = 0.30 kg and radius R = 0.17 m) and a…
A: Given :Mass of hoop, mh=0.30 kgRadius of hoop, R=0.17 mMass of rod, mr=0.30 kgLength of the rod,…
Q: The puck in the figure below has a mass of 0.120 kg. The distance of the puck from the center of…
A: The objective of the question is to determine the work done on the puck. This can be done by…
Q: A marble rolls down the track and around a loop-the-loop of radius 0.2 m. The marble has mass 59 g…
A: Given, mass of the marble, m=59 g radius of the marble, r=1.5 cm Radius of the loop, R=0.2 m
Q: Consider a 150g puck on a string moving in a 1m radius circle on an air hockey table (no friction)…
A: Solution:
Q: Two wheels of moment of inertia 3.6 kg m and 7.6 kg.m2 are set in rotation with angular speed 9.6…
A: Given information: Here, I1 and I2 are the MOI of the two wheels with initial angular speed ω1 and…
Q: A wrench is used to tighten a nut. A 100-N force is applied 0.10 m from the axis of rotation. what…
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Q: The puck in the figure below has a mass of 0.224 kg. Its original distance from the center of…
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Q: Find the total kinetic energy of a rolling bowling ball that has a mass of 4 kg and a radius of 0.17…
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Q: What is the kinetic energy of a 123 cm long thin uniform rod with a mass of 458 g that is rotating…
A: The rod is rotating about its center of mass so it has only rotational kinetic energy. Kinetic…
Q: While spinning down from 500.0 rpm to rest, a solid uniform disk does 51 KJ of work. If the radius…
A: Given, Flywheel spinning down from N = 500 rpm. Kinetic energy = 51 kJ Radius = 400mm We need to…
Q: A stick with a mass of 0.164 kg and a length of 1.00 m is pivoted about one end so it can rotate…
A: Given: A stick with a mass of 0.164 kg and a length of 1.00 mis pivoted about one end so it can…
Q: A uniform rod of mass 0.7 kg and length 2.1 m is free to rotate about one end. If the rod is…
A: The center of mass of the rod (H) is located above the horizontal. The equation of center of mass of…
Q: MULTIPLE CHOICE Question 3 Convert 260° to radians. A 4.5 rad B 260 rad C 1.4 rad D 820 rad
A: The value of the angle θ=260°
Q: Determine the kinetic energy of a circular disc rotating with a speed of 60 r.p.m- about an axis…
A: To find-Kinetic energy=?Given-n=60 rpm=6060=1 rpsM=5 kgR=1 m
Q: The puck in the figure below has a mass of 0.186 kg. Its original distance from the center of…
A: Given: mass of puck, m=0.186 kg Initial radius, ri = 40 cm Initial speed of rotation, v=85 cm/s…
Q: When the kinetic energy due to rotation is zero?
A: The kinetic energy due to rotation is given by, K=12Iω2 Here, I is the moment of inertia of the…
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- A disk of radius = 2.02 mm is attached to a high-speed drill at a dentist’s office and is turning at 96,185 rad/sec. Determine the tangential speed of a point on the outer edge of this disk. Use g=9.8A 10 kg, 0.5 m radius wheel running at 1800 rpm develops a torque of 50 KNm. Find the power ( KW ) transmitted by the wheel. O 6 783 8 216 O 9 425 10 062The puck in the figure below has a mass of 0.260 kg. Its original distance from the center of rotation is 40.0 cm, and it moves with a speed of 90.0 cm/s. The string is pulled downward 15.0 cm through the hole in the frictionless table. Determine the work done on the puck. (Hint: Consider the change of kinetic energy of the puck.)
- A hollow sphere rolls without slipping down a ramp that is 3.5 m long. the ramp is inclined at an angle of 20˚ with the horizontal. Use the conservation of energy to find the speed of the sphere at the bottom of the slope if it starts from rest. ( I= 2/3 m R2 )The SI unitfor rotational kinetic energy J kg ^2 none WWhat is the kinetic energy of a 123 cm long thin uniform rod with a mass of 458 g that is rotating about its center at 4.0 rad/s? Give your answer in Joules.
- The turntable in a microwave oven has a moment of inertia of 0.040 kg⋅m2 and is rotating once every 4.4 s . What is its kinetic energy?Express your answer with the appropriate units.A hollow cylinder (hoop), a solid cylinder (disk), and a solid sphere, each of mass M and radius R, roll down a hill of height h. Rank the objects based on their total kinetic energy at the bottom of the hill. Rank the one with the most energy 1, etc. If two are equal, give them the same ranking. hoop___________ disk_______________sphere_______________Justify your rankingDiscuss why the differences in peak torque and average power between the two speeds 60 and 180°/sec during extension. Can you relate these differences to the measurements of strength and power? Why? Use the force-velocity curve to answer this question Extension Peak Torque (N/M) Peak Torque (N/M) 60•/sec Flexion 60°/sec 180°/sec 180•/sec s1 160.7 119.2 s1 78.3 75.3 S2 90.8 57.2 S2 49.3 36.7 S3 132 104.9 S3 89.3 68.2 S4 127.1 88.4 S4 58.8 48.1 S5 213.3 151 S5 98.9 72.3 S6 138.2 104.2 S6 61.8 55.7 S7 115.4 84.1 S7 49.2 40.8 S8 117.5 82.1 S8 59.7 40.2 S9 119.5 80 S9 62.3 43.2 s10 113.7 79.9 S10 53.6 38 s11 122.5 89.2 S11 57.6 33.8 Average 132 95 Average 65 50 Extension Average Power (W) Flexion Average Power (W) 60°/sec 180•/sec 60•/sec 180•/sec s1 120.2 202.5 s1 66.9 113.4 S2 80.9 134.8 S2 45.7 77.1 S3 117.5 272.6 S3 74.7 147.3 S4 116.2 192.2 S4 55.1 105.1 S5 130 255 S5 67.3 108.5 S6 118.9 164.2 S6 59.6 114.7 S7 94.1 187.4 S7 47.7 98.9 S8 94.7 128.9 S8 44 55.2 S9 97.3 130.4 S9 48.1 60.6…