Which of these actions would increase heat transfer between two objects

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

For the below questions, consider a consumer that consumes two goods, x and z with the following utility function. u with bar on top space equals space x to the power of 1 third end exponent z to the power of 2 over 3 end exponent suppose initial values for income and the prices of goods x and z are y equals 90, p subscript x equals space 10, and p subscript z equals 15 respectively, then the price of good x falls to syntax error from line 1 column 89 to line 1 column 100. unexpected '\'.. what is the magnitude of the total effect

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth