Determine the magnitude of the force that you need to exert on the end of the stick (perpendicular to it) so that the cylinder moves with a constant speed. Determine the work done by your hand on the stick while your hand makes one full turn around the axis. Determine the work done by the stick on the cylinder during the one full term around the axis.

Item 11 The pulley in (Figure 1) has radius 0.160 m and moment of inertia 0.380 kg - m². The rope does not slip on the pulley rim. Figure 4.00 kg 5.00 m 2.00 kg 1 of 1 Part A V = Use energy methods to calculate the speed of the 4.00 kg block just before it strikes the floor. Express your answer with the appropriate units. μÀ Value Submit Request Answer

Two solid spheres of radius R and mass m are initially separated by a distance d such that the two centres of mass are separated by d+3R as shown below. The spheres are initially at rest, but the gravitational force  accelerates them towards each other until they collide.a) Calculate the initial mechanical energy of the system.b) Calculate the gravitational potential energy of the system at the moment they collide.c) Derive an expression for v. State carefully what physical law you are applying.d) Show that, in the limit d >> R, the velocity v is independent of d.

A thin cylindrical ring starts from rest at a height h1 = 98 m. The ring has a radius R = 34 cm and a mass M = 4 kg. Part (a)  Write an expression for the ring's initial energy at point 1, assuming that the gravitational potential energy at point 3 is zero.  Part (b)  If the ring rolls (without slipping) all the way to point 2, what is the ring's energy at point 2 in terms of h2 and v2?  Part (c)  Given h2 = 32 m, what is the velocity of the ring at point 2 in m/s? Part (d)  What is the ring's rotational velocity in rad/s? Part (e)  After passing point 2 the hill becomes frictionless and the ring's rotational velocity remains constant. What is the linear velocity of the ring at point 3 in m/s?

Jerry's great grandmother's vitrola plays records at 78 roatations per minute (rpm). Describe what will happen if Jerry starts the vitrola on a friction free table. Justify your answer.

The turntable in a microwave oven has a moment of inertia of 0.040 kg⋅m2 and is rotating once every 4.4 s . What is its kinetic energy?Express your answer with the appropriate units.

A hollow cylinder (hoop), a solid cylinder (disk), and a solid sphere, each of mass M and radius R, roll down a hill of height h. Rank the objects based on their total kinetic energy at the bottom of the hill. Rank the one with the most energy 1, etc. If two are equal, give them the same ranking. hoop___________ disk_______________sphere_______________Justify your ranking

Discuss why the differences in peak torque and average power between the two speeds 60 and 180°/sec during extension. Can you relate these differences to the measurements of strength and power? Why? Use the force-velocity curve to answer this question Extension Peak Torque (N/M) Peak Torque (N/M) 60•/sec Flexion 60°/sec 180°/sec 180•/sec s1 160.7 119.2 s1 78.3 75.3 S2 90.8 57.2 S2 49.3 36.7 S3 132 104.9 S3 89.3 68.2 S4 127.1 88.4 S4 58.8 48.1 S5 213.3 151 S5 98.9 72.3 S6 138.2 104.2 S6 61.8 55.7 S7 115.4 84.1 S7 49.2 40.8 S8 117.5 82.1 S8 59.7 40.2 S9 119.5 80 S9 62.3 43.2 s10 113.7 79.9 S10 53.6 38 s11 122.5 89.2 S11 57.6 33.8 Average 132 95 Average 65 50 Extension Average Power (W) Flexion Average Power (W) 60°/sec 180•/sec 60•/sec 180•/sec s1 120.2 202.5 s1 66.9 113.4 S2 80.9 134.8 S2 45.7 77.1 S3 117.5 272.6 S3 74.7 147.3 S4 116.2 192.2 S4 55.1 105.1 S5 130 255 S5 67.3 108.5 S6 118.9 164.2 S6 59.6 114.7 S7 94.1 187.4 S7 47.7 98.9 S8 94.7 128.9 S8 44 55.2 S9 97.3 130.4 S9 48.1 60.6…

A diver makes 2.0 revolutions on the way from a 8.8-m-high platform to the water. Assuming zero initial vertical velocity, find the diver's average angular velocity during a dive. Number i Units