#21 was withdrawn just need 22&23 021 (part 1 of 3) 10.0 points A pulley system...
020 10.0 points A bird is flying with a speed of 14.7 m/s over water when it accidentally drops a 1.60 kg fish The acceleration of gravity is 9.81 m/s4 If the altitude of the bird is 6.40 m and air resistance is disregarded, what is the speed of the fish when it hits tho water Answer in units of m/s 021 (part 1 of 3) 10.0 points A pulley system lifts a 1493 N weight a dis- tance of...
021 (part 1 of 3) 10.0 points An electron has an initial velocity of 3.5 x 10 m/s in the r direction. It enters a uniform electric field E = (300 N/C) which is in the y direction. Find the acceleration of the electron. The fundamental charge is 1.602 x 10-19 C and the mass of the electron is 9.109 x 10-31 kg. Answer in units of m/s". 022 (part 2 of 3) 10.0 points How long does it take...
part 1 &2 021 (part 1 of 2) 10.0 points pro A student sits on a rotating stool holding twoit's 2 kg objects. When his arms are extended horizontally, the objects are 0.7 m from the mot axis of rotation, and he rotates with angular ing speed of 0.66 rad/sec. The moment of inerA tia of the student plus the stool is 2 kgm and is assumed to be constant. The student then pulls the objects horizontally to a radius...
021 (part 1 of 2) 10.0 points A student sits on a rotating stool holding two 1 kg objects. When his arms are extended horizontally, the objects are 1 m from the axis of rotation, and he rotates with angular speed of 0.79 rad/sec. The moment of inertia of the student plus the stool is 4 kgm2 and is as- sumed to be constant. The student then pulls the objects horizontally to a radius 0.36 m from the rotation axis...
021 (part 1 of 2) 10.0 points A student sits on a rotating stool holding two 4 kg objects. When his arms are extended horizontally, the objects are 0.7 m from the axis of rotation, and he rotates with angular speed of 0.69 rad/sec. The moment of iner- tia of the student plus the stool is 4 kg and is a ssumed to be constant. The student then pulls the objects horizontally to a radius 0.29 m from the rotation...
006 (part 1 of 2) 10.0 points Assume: The system shown below starts from rest and there are no frictional forces opposing the motion of the system. The dolly and its wheels have negligible mass. The acceleration of gravity is 9.8 m/s 23.8 N 281 N of If a person pulls on the rope with a constant force what is the acceleration of the system? Answer in units of m/s? 007 (part 2 of 2) 10.0 points How far will...
mitaj (dm49222)-Homework 8, torque 18-19-ma his mista 021 (part 1 of 2) 10.0 points A student sits on a rotating stool holding two 2 kg objects. When his arms are extended horizontally, the objects are 1 m from the axis of rotation, and he rotates with angular speed of 0.6 rad/sec. The moment of inertia of thee student plus the stool is 7 kg m2 and is as- sumed to be constant. The student then pulls the objects horizontally to...
021 (part 1 of 2) 10.0 points The force required to stretch a Hooke's-law spring varies from 0 N to 69.3 N as we stretch the spring by moving one end 9.11 cm from its unstressed position. Find the force constant of the spring Answer in units of N/m. 022 (part 2 of 2) 10.0 points Find the work done in stretching the spring Answer in units of J.
18 (part 1 of 8) 10.0 points the plot below describing motion A along a straight line with an initial position of t 10 m. 3 2 0 2 time (s) What is the acceleration at 1 second? Answer in units of m/s? 019 (part 2 of 8) 10.0 points What is the velocity at 2 seconds? Answer in units of m/s. 020 (part 3 of 8) 10.0 points What is the position at 2 seconds? Answer in units of...
ent 38228286 a e WITHDRAWN 027 (part 1 of 2) 10.0 points A ball thrown vertically upward is caught by the thrower after 1.93 s. Find the initial velocity of the ball. The acceleration of gravity is 9.8 m/s2 Answer in units of m/s. 028 (part 2 of 2) 10.0 points Find the maximum height it reaches. Answer in units of m. 029 10.0 points A car enters the freeway with a speed of 6.9 m/s and accelerates uniformly for...