Apiano emits frequencies that range from a low of about 28 hz to a high of about 4200 hz. find the maximum wavelength in air attained by this instrument when the speed of sound in air is 335 m/s. answer in units of m.

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

What is the relationship between the direction of motion of the balloon and the wind currents

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?