Worksheet #30 Temperature Leader: Wesley and Thermal Expansion Course: PHYS 221 Instructor: Whisnant Supplemental Instruction 04/14/2014 Date: Review Questions (56.2%) Which one of the following statements is true? The vector sum of the tangential acceleration and the centripetal acceleration can be zero for a point on a rotating disk. All points on a rotating disk have the same angular velocity. All points on a rotating disk have the same linear speed. All points on a rotating car tire have zero acceleration if the car is moving with constant linear velocity. All points on a rotating disk experience the same radial acceleration (52.2%) Vector A lies in the x-y plane, has a magnitude of 2.00, and makes angle of 60.0° with the positive x-axis, and vector B = 3.00i 5.00j. What is the value of X A)? – A•(B (Hint: Will the answer be a vector or a scalar?) (36.3%) A ball is thrown directly upward off the roof of a tall building at = 0. The ball t reaches its maximum height at = 1.5 s, and hits the ground at the bottom of the building t at = 4.2 s. How tall is the building, in m? Assume there is no air resistance. t Extra: How can you use the dot product to determine a vector that is perpendicular to another vector of known quantities?
Worksheet #30 Temperature and Thermal Expansion Supplemental Instruction Leader: Wesley Course: PHYS 221 Instructor: Whisnant Date: 04/14/2014 Review Questions (56.2%) Which one of the following statements is true? The vector sum of the tangential acceleration and the centripetal acceleration can be zero for a point on a rotating disk. All points on a rotating disk have the same angular velocity. All points on a rotating disk have the same linear speed. All points on a rotating car tire have zero acceleration if the car is moving with constant linear velocity. All points on a rotating disk experience the same radial acceleration (52.2%) Vector A lies in the x-y plane, has a magnitude of 2.00, and makes angle of 60.0° with the positive x-axis, and vector B = 3.00i – 5.00j. What is the value of A•(B X A)? (Hint: Will the answer be a vector or a scalar?) (36.3%) A ball is thrown directly upward off the roof of a tall building at t = 0. The ball reaches its maximum height at t = 1.5 s, and hits the ground at the bottom of the building at t = 4.2 s. How tall is the building, in m? Assume there is no air resistance. Extra: How can you use the dot product to determine a vector that is perpendicular to another vector of known quantities?
PHYS_221__20-29__Whisnant_wmhutter_Worksheet_30_-_Temperature_and_Thermal_Expansion__Review_Vectors_and_1D_Kinematics_.docx