Three forces are exerted on a 3.00-kg block initially at rest on a horizontal slippery surface xy: a 100-n force directed along the positive x axis, a 50.0-n force that makes an angle of 30.0∘ with the positive x axis, and a 138-n force that makes an angle of 190∘ with the positive x axis.

what is the y component of the vector sum of the forces exerted on the block?

what is the work done on the block in 10.0 s?

An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f