A 0.11 kg ball is about to roll off the edge of a 12.51 m high table. What is its current PE? No unit is required for the final answer. Round your answer to 2 decimal places.
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- An adapted golf device attaches to a wheelchair to help people with mobility impairments play putt-putt. The stationary frame OD is attached to the wheelchair, and a club holder OB is attached to the pin at O. Holder OB is 6 in. long and weighs 8 oz, and the distance between O and D is x = 1 ft. The putter shaft has a length of L = 36 in. and weighs 10 oz, while the putter head at A weighs 12 oz. Knowing that the 1-lb/in. spring between D and B is unstretched when 0 = 90° and that the putter is released from rest at 0 = 0, determine the putter head speed when it hits the golf ball.The hand on a circular spinner is 2 inches long. The spinner is divided into 8 equal sections. What is the distance the hand may travel within one of the sections? Round your answer to one decimal place.A lift hangs from a steel cable. The lift is raised by winding the cable around a cylindrical axis with a diameter of 39cm. If the distance between the first and the second floor is 5m, how often does this axis have turn to make lift travel between the floors? Give y answer correct to 2 decimal places. Note Im = 100cm. Answer: 4.08
- A circular disk (D = 5.63 cm) is rotating at an angular velocity of 209 rev/min and is decelerating at a constant rate of 4.87 rad/s?. Find the total number of revolutions by the time the disk stops spinning. Round your answer to 2 decimal places. Add your answerWhat is the SI unit for angular velocity? Group of answer choices rad/s m/s cm/s mm/s6. A ceiling fan turns at a rate of 20 RPM what is its speed in radians per second, and the speed of a tip of a 50 cm fan blade in m/s?
- There is a CD-rom that's spinning a CD at 2,000 rpm. There is a bit of dirt, weighing 0.220 g, attached to the CD 3.50 cm from the centre. What must the force of friction between the CD and the dirt be so that the bit of dirt continues to rotate in a circle and doesn't fly off? Give your answers in units of mN (millinewton), to three significant figuresKg. m^2 (kilogram. meter square) is the unit of O a. moment of inertia O b. rotational kinetic energy O c. angular acceleration O d. angular momentumA wheel of radius 10 inches is rotating 0.6 rad/s. What is the linear speed v, the angular speed in RPM, and the angular speed in deg/s? (Round your answers to four decimal places.) linear speed in/s angular speed RPM angular speed deg/s
- 1. A 0.5 kg ball is attached to a 0.75 m long string and is being rotated in a horizontal circle with a tangential velocity of 7 m/s. Find its angular momentum.A three-blade wind turbine, which spins perpendicularly to the ground, is set on a pole that is 38 m tall and completes 5 revolutions in one minute. The length of one blade is approximately 4 m long. One particular blade lies parallel to the ground before the turbine started to spin. a) What is the equation that models the height of tip of this blade as a function of time (in seconds)?A lift hangs from a steel cable. The lift is raised by winding the cable around a cylindrical axis with a diameter of 52cm. If the distance between the first and the second floor is 4m, how often does this axis have turn to make lift travel between the floors? Give your answer correct to 2 decimal places. Note 1m = 100cm. Answer: 72