A dentist causes the bit of a high-speed drill to accelerate from an angular speed of...
3a. A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.00×1041.00×104 rad/s to an angular speed of 3.30×1043.30×104 rad/s. In the process, the bit turns through 1.86×1041.86×104 rad. Assuming a constant angular acceleration, how long would it take the bit to reach its maximum speed of 7.80×1047.80×104 rad/s, starting from rest? ________s 3b. During a tennis serve, a racket is given an angular acceleration of magnitude 120 rad/s2. At the top of the...
A dentist's drill starts from rest and undergoes uniform angular acceleration for a period of 0.115 s until it turns at a rate of 2.15 ✕ 104 rev/min. A dentist's drill starts from rest and undergoes uniform angular acceleration for a period of 0.115 s until it turns at a rate of 2.15 x 104 rev/min. (a) What is the drill's angular acceleration (in rad/s2)? (Enter the magnitude.) rad/s2 (b) What is the angle (in radians) through which the drill...
1. A dentist’s drill can accelerate with a constant angular acceleration of 750 s^-2. (a) How long does it take to accelerate from rest to an angular speed of 2.0 x 10^5 rpm? (b) How many revolutions does the drill make at this time? 2. A 240 kg father sits on a seesaw at a distance of 4 m from the fulcrum. Where must his daughter sit to balance the seesaw if she has a mass of 60 kg?
A high speed drill bit rotating counter clockwise at 1200 rpm slows to a stop in 3.0 seconds A.) what is the drills angular acceleration in rad/sec^2? B.)How many revolutions does the drill bit make before it stops?
1)A dentist's drill starts from rest. After 4.00 s of constant angular acceleration it turns at a rate of 2.00 ✕ 104 rev/min. a)Find the drills angular acceleration ____rad/s^2 b) Determine the angle (in radians) through which the drill rotates during this period____rad 2)The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 5.0 rev/s in 10.0 s. At this point, the person doing the laundry opens the lid, and a...
A dentist's drill starts from rest. After 3.10 s of constant angular acceleration it turns at a rate of 2.80 ✕ 104 rev/min. (a) Find the drill's angular acceleration. _______ rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. ________ rad
A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.70 ✕ 104 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. rad
A dentist's drill starts from rest. After 2.50 s of constant angular acceleration it turns at a rate of 2.55 ✕ 104 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. rad
A dentist's drill starts from rest. After 4.60 s of constant angular acceleration it turns at a rate of 2.55 ✕ 104 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. rad
15. A dentist's drill starts from rest. After 3.10 s of constant angular acceleration, it turns at a rate of 25.4 rad/s. Find the drills angular acceleration.