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A solid cylindrical disk has a radius of 0.15 m. It is mountedto an axle that is perperndicular to the circular end of the diskat its center. When a 45 N force is applied tangentially to thedisk, perpendicular to the radius, the disk acquires an angularacceleration of 120 rad/s2. What is the mass of the disk?
A mercury thermometer is free of all markings. The thermometer is placed in an ice bath. When the thermometer is in equilibrium with the ice bath the position of the mercury column is marked on the glass.
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 20.0 m/s at an angle 54.0 degrees; What is the distance between the two girls
A piece of iron isheated with a torch to a temperature of 6000 K. How much moreenergy does it emit as blackbody radiation at 6000K than it does atroom temperature, 300 K?
Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 14.9 m/s toward the east, What was the initial speed of the northward-moving vehicle
The human eardrum has an area of 5.0×10-5 m2. What is the sound power at the threshold of pain
A 4.10g lead bullet traveling at300m/s is stopped by a large tree. what is the increase in temperature of the bullet
A small button placed on a horizontal rotating platform with diameter 0.316 m will revolve with the platform when it is brought up to a rotational speed of 39.0 rev/min, How far from the axis can the button be placed
q1. a parallel-plate capacitor has a plate area of 1cm1 and a plate separation of 2.5 mm. to obtain an electric field
A 1.94-cm-high object is placed 23.8 cm in front of a concave mirror with a 5.84-cm focal length. What is the position of the image
A cyclist is moving down a steep hill that has a grade of 20%. The rider is traveling at 3.5 m/s. The combined weight of the rider and cycle is 800N and the dynamic coefficient of friction between the tires and the road is 0.7. If the rider sudden..
The microwave radiation left over from the Big Bang explosion of the universe has an average energy density of 3.87 Ã- 10â€"14 J/m3
A car's starter motor draws 55 A from the car's battery when starting up. If the start-up time is 2.4 s, how many electrons pass a location in the circuit during that time
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