Somoeone made a copy of an analog wave and a digital wave. Compare the copies with the original waves. Then, explain which type of wave is more reliable way to encode and transmit information.

Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

The electric field direction is defined by the direction of the force felt by (select one of the following answers): 1. a negative charge. 2. a positive charge. 3. both positive and negative charges.