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Question 2 Answer saved Points out of 100 P acquestion The angular position of objects as...
Question 1 The angular position of a point on a rotating wheel is given by 0...
Question 1 The angular position of a point on a rotating wheel is given by 0 = 1.65 + 4.93t2 + 3.95t, where is in radians and t is in seconds. At t = 0, what are (a) the point's angular position and (b) its angular velocity? (c) What is its angular velocity at t = 6.25 s? (d) Calculate its angular acceleration at t = 2.23 s. (e) Is its angular acceleration constant? (a) Number Units (b) Number Units...
Question 1 points Save Answer The disk starts from rest and is given an angular acceleration...
Question 1 points Save Answer The disk starts from rest and is given an angular acceleration g 9 radswhere t is in seconds and n is a constant 2. Detemine the magnitude of the angular velocity (in rad/s) of the disk when t 3 s. 0.4 m
Question 19 Tries remaining: 4 Points out of 1.00 P Flag question The position of a...
Question 19 Tries remaining: 4 Points out of 1.00 P Flag question The position of a 0.30-kg object attached to a spring is described by x(0.21 m) cos[(0.7n rad/s) q. (Assume tis in seconds.) X= (a) Find the amplitude of the motion. Answer: Check Question 20 Tries remaining: 4 Points out of 1.00 P Flag question (b) Find the spring constant. Answer: Check Question 21 Tries remaining 4 Points out of 1.00 P Flag question (c) Find the position of...
QUESTION 1 10 points S. A wheel, with radius 0.3 m and moment of inertial 54...
QUESTION 1 10 points S. A wheel, with radius 0.3 m and moment of inertial 54 kg m 2 about its center, rotates about a frictionless axle with angular velocity 10 radians per second. A brake is applied which supplies a constant force to a point on the perimeter of the wheel of 13 N tangent to the wheel and opposing the motion. How many degrees (in radians) will the wheel turn before coming to rest?
QUESTION 3 5 points Save Answer A solid disk is initially rotating at 25 rad/s and...
QUESTION 3 5 points Save Answer A solid disk is initially rotating at 25 rad/s and has a constant angular acceleration. After 7.0 s it has rotated through 960 rad. Its angular acceleration in rad/s is:
Question 5 Tries remaining: 3 Points out of 1.00 P Flag question To measure their mass...
Question 5 Tries remaining: 3 Points out of 1.00 P Flag question To measure their mass while staying in zero-g environments, astronauts use a body-mass measuring device (BMMD). This consist of them grabbing a big spring, and oscillating on it in simple harmonic motion, and measuring the period. The spring constant of the BMMD is 3100 N/m. A) If the astronaut has a period of 1.07 s, what is their mass? Answer: Check Question 6 Points out of 1.00 Tries...
rnellas - 6BD 25F) Question 4 Answer saved Marked out of 1.00 P Flag question Tech...
rnellas - 6BD 25F) Question 4 Answer saved Marked out of 1.00 P Flag question Tech A says that the vacuum booster increases the vacuum in the brake system. Tech B says that the vacuum booster uses vacuum and atmospheric pressure to multiply the driver's foot pressure applied to the master cylinder push rod. Who is correct? Select one: A. Tech A B.Tech B C. Both A and B D. Neither Anor B Ornellas - 6BD 25F) Question 3 Answer...
QUESTION 1 Determine the angular velocity of the second hand, in degree/second, of a mechanical clock...
QUESTION 1 Determine the angular velocity of the second hand, in degree/second, of a mechanical clock QUESTION 2 What is the angular velocity in Sl units of the hour hand of a mechanical clock? 1.74 x 10-3 radis 727 x 10-5 radis 0.105 radis 1 45 x 10-radis QUESTION 3 At its peak a tornado is 549 m in diameter and carries 253 MPH winds. What is its angular velocity in Sl units? Express your answer with 3 or more...
QUESTION 5 A figure skater is spinning with an angular velocity of Il rad/s. She then...
QUESTION 5 A figure skater is spinning with an angular velocity of Il rad/s. She then comes to a stop over a brief period of time. During this time, her angular displacement is 5.9 rad. Determine her average angular acceleration, in SI units, with 3 or more significant figures QUESTION 6 Suppose you exert a force of 171 N tangential to a 0.26 m radius 83 kg grindstone (a solid disk). What is the angular acceleration if there is an...
6. (25 points) The following question examines the motion of two children on a merry-go- round. You may treat the child...
6. (25 points) The following question examines the motion of two children on a merry-go- round. You may treat the children as point particles with mass m and the merry-go-round as a disk with mass M and radius R. The moment of inertia of a disk is Idisk MR2 0wn o r Ve n e r (a) Calculate the total energy of the system if the two children are at the edge of the merry- go-round and the merry-go-round is...
Question 1 The angular position of a point on a rotating wheel is given by 0 = 1.65 + 4.93t2 + 3.95t, where is in radians and t is in seconds. At t = 0, what are (a) the point's angular position and (b) its angular velocity? (c) What is its angular velocity at t = 6.25 s? (d) Calculate its angular acceleration at t = 2.23 s. (e) Is its angular acceleration constant? (a) Number Units (b) Number Units...
Question 1 points Save Answer The disk starts from rest and is given an angular acceleration g 9 radswhere t is in seconds and n is a constant 2. Detemine the magnitude of the angular velocity (in rad/s) of the disk when t 3 s. 0.4 m
Question 19 Tries remaining: 4 Points out of 1.00 P Flag question The position of a 0.30-kg object attached to a spring is described by x(0.21 m) cos[(0.7n rad/s) q. (Assume tis in seconds.) X= (a) Find the amplitude of the motion. Answer: Check Question 20 Tries remaining: 4 Points out of 1.00 P Flag question (b) Find the spring constant. Answer: Check Question 21 Tries remaining 4 Points out of 1.00 P Flag question (c) Find the position of...
QUESTION 1 10 points S. A wheel, with radius 0.3 m and moment of inertial 54 kg m 2 about its center, rotates about a frictionless axle with angular velocity 10 radians per second. A brake is applied which supplies a constant force to a point on the perimeter of the wheel of 13 N tangent to the wheel and opposing the motion. How many degrees (in radians) will the wheel turn before coming to rest?
QUESTION 3 5 points Save Answer A solid disk is initially rotating at 25 rad/s and has a constant angular acceleration. After 7.0 s it has rotated through 960 rad. Its angular acceleration in rad/s is:
Question 5 Tries remaining: 3 Points out of 1.00 P Flag question To measure their mass while staying in zero-g environments, astronauts use a body-mass measuring device (BMMD). This consist of them grabbing a big spring, and oscillating on it in simple harmonic motion, and measuring the period. The spring constant of the BMMD is 3100 N/m. A) If the astronaut has a period of 1.07 s, what is their mass? Answer: Check Question 6 Points out of 1.00 Tries...
rnellas - 6BD 25F) Question 4 Answer saved Marked out of 1.00 P Flag question Tech A says that the vacuum booster increases the vacuum in the brake system. Tech B says that the vacuum booster uses vacuum and atmospheric pressure to multiply the driver's foot pressure applied to the master cylinder push rod. Who is correct? Select one: A. Tech A B.Tech B C. Both A and B D. Neither Anor B Ornellas - 6BD 25F) Question 3 Answer...
QUESTION 1 Determine the angular velocity of the second hand, in degree/second, of a mechanical clock QUESTION 2 What is the angular velocity in Sl units of the hour hand of a mechanical clock? 1.74 x 10-3 radis 727 x 10-5 radis 0.105 radis 1 45 x 10-radis QUESTION 3 At its peak a tornado is 549 m in diameter and carries 253 MPH winds. What is its angular velocity in Sl units? Express your answer with 3 or more...
QUESTION 5 A figure skater is spinning with an angular velocity of Il rad/s. She then comes to a stop over a brief period of time. During this time, her angular displacement is 5.9 rad. Determine her average angular acceleration, in SI units, with 3 or more significant figures QUESTION 6 Suppose you exert a force of 171 N tangential to a 0.26 m radius 83 kg grindstone (a solid disk). What is the angular acceleration if there is an...
6. (25 points) The following question examines the motion of two children on a merry-go- round. You may treat the children as point particles with mass m and the merry-go-round as a disk with mass M and radius R. The moment of inertia of a disk is Idisk MR2 0wn o r Ve n e r (a) Calculate the total energy of the system if the two children are at the edge of the merry- go-round and the merry-go-round is...
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