A scale with a 2 kilogram weight on the left side and a watermelon on the right. The watermelon is lower on the scale than the weight. Compare the mass of the two objects.

Which statement accurately describes the mass of the watermelon?

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?

The velocity of sound wave in air at 35°c is 353m/s, calculate the velocity of sound at 46°c