Awave pulse travels along a string at a speed of 230 cm/s . note that parts a - d are independent and refer to changes made to the original string.(a) what will be the speed if the string's tension is doubled? (b) what will be the speed if the string's mass is quadrupled (but its length is ) what will be the speed if the string's length is quadrupled (but its mass is unchanged)?

What is a costume plot? why is it important to a film or theater production?

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance

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