• A small space telescope at the end of a tether line of length L moves at linear speed v about a central space station. a. What will be the linear speed of the telescope if the length of the line is reduced to 0.33 L? b. If the initial linear speed of the telescope is 1.0 m/s, what is its speed when pulled in to one-third its initial distance from the space station?

A ball traveling from point A to point E on the surface of the Earth follows the trajectory shown in the figure. B с it is straight down What is the direction of the acceleration at point B? it is down and to the left The acceleration of the ball is zero D it is straight up it is up and to the right E

A ball is connected to a wire and swings in 4.) uniform circular motion as shown in the figure to the right. If the wire makes an angle of 0 = 27.0° with the vertical when the ball moves with a speed of 1.79 m/s, what is the length of the wire? %3D

In many new science fiction movies large space ships simulate gravity by make very large cylindrical vessels that rotate at correct speeds. If one such space ship has a radius of R = 53.1 m, how many revolutions per hour does it need to make so that the passengers feel the proper simulation of gravity as they are on the edge? R

Hello!! I need help with my physics lab homework. I notice that  it does not matter if I change the angle, or the mass, or  the radius, the object2 always takes less time to get to the bottom of the inclined plan than the other objects; the object1 always is the second fastest object, the object3 is the third fastest object, and the object4 is the slowest object to get to the bottom. my question is why ?   Please see images to understand what I mean.   Thank you a lot   first image is the worksheet with the infos I have use in the lab. ( ps: object1= solid cylinder, object2=  solid sphere, object3= thin cylindrical shell, object4= thin spherical shell)   second image is the lab that i am working on

A ball is tied to a string and whirled in a horizontal circle at a constant 4 revolutions per second. Categorize the following according to whether they are 0 in value, constant in value, or change: v: linear speed (scalar) v. linear velocity (vector) a: radial (centripetal) acceleration (scalar) a: radial (centripetal) acceleration (vector) u angular speed (scalar) w angular velocity (vector) a angular acceleration (scalar) a angular acceleration (vector constant and non-zero constant and 0 non-constant radial acceleration (scalar) radial acceleration (vector) angular velocity (vector) linear velocity angular acceleration (vector) linear speed angular speed angular acceleration (scalar)