StraighterLine PHY 250 General Physics All Graded Exams

StraighterLine PHY 250 General Physics All Graded Exams Question 1 Correct 6.00 points out of 6.00 Flag question Question text John Wilkins hits a baseball with an initial velocity of 110 mph at an angle of 35° from the horizontal. The backfield fence is 403 ft from home plate. Did “The Big J” hit a home run? (Assume there is no drag force and that there is no wind.) Select one: a. yes b. no Feedback The correct answer is: yes Question 2 Incorrect 0.00 points out of 6.00 Flag question Question text The normal force exerted on a book placed upright on a table is 47 N. If the book is then placed in its side on the table, what is the mass of the book? Select one: a. 7.4 kg b. 3.5 kg onlystudents c. 9.8 kg d. 4.8 kg e. None of the above Feedback The correct answer is: 4.8 kg Question 3 Correct 6.00 points out of 6.00 Flag question Question text Which of the following is a correct statement concerning the velocity of a particle in uniform circular motion? Select one: a. The velocity is in the same direction as the angular velocity. b. The velocity is directed radially inward. c. The velocity is in the same direction as the centripetal acceleration. d. The velocity is constantly changing directions.