S s) An object has a velocity vo(t) = (300 m/s) ² + (1.00mlola
at time t= 0.004. The accelerations of the object is
a (t) = 42.00 m/s) ti + (1.00 m/sh) tag. If the object
is located at ro(t) = (1.00mle + (-1.00m) at time t = 0.002
?
What is the position of the object at time t= 1.00h?

Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm