An opera singer in a convertible sings a note at 700 hz while cruising down the highway at 83 km/h. the speed of sound in the air is 343 m/s. part a what is the frequency heard by a person standing beside the road in front of the car?

What property does the following elements have in common Li, C, F

a professor of height 1.8 m and 0.75 m width has a mass of 85kg and layson a densely packed bed of nails, how much pressure does the professor feelfrom the nails? Assume the professor is rectangle. a) 330 atm

According to the most widely accepted scientific explanation, how did the universe begin? A. As a collection of protons and neutrons B. As a cloud of gas and dust C. With a huge collision D. With a giant expansion

How Close to the edge of a 20kg table, can a 66kg person sit without tipping it over? The table is 2.2m long and there are two legs placed 0.5 m from each end of the table. with 1.2 meters between the two legs. the top of the table is 0.80 m tall

How long does it take for tylenol to work?

A transparent film laminated to a fabric is identified in the study material as a. stretch fabric. b. PVC. c. a skin. d. two-faced fabric

Technician A says that all friction and steel plates in a clutch pack should be replaced during and overhaul. Technician B says that the automatic transmission fluid cooler should always be flushed when a unit is rebuilt or replaced.

Cold water (cp = 4180 J/kg·K) leading to a shower enters a thinwalled double-pipe counterflow heat exchanger at 15°C at a rate of 1.25 kg/s and is heated to 60°C by hot water (cp = 4190 J/kg·K) that enters at 100°C at a rate of 4 kg/s.

Determine the magnitude of the acceleration for the speeding up phase.

The experimenter fom the video rotates on his stool, this time holding his empty hands in his lap. You stand on a desk above him and drop a long, heavy been bag straight down so that it lands across his lap, in his hands. what happens?