Apiece of chocolate cake contains about 400 calories. a nutritional calorie is equal to 1000 calories (thermochemical calories), which is equal to 4.184 kj. how many 8-in. high steps must a 180-lb. man climb to expend the 400 cal from the piece of cake

The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.

What quantity do units represent in value

As microwave light travels through a liquid, it moves at a speed of 2.2 x 108 m/s. if the frequency of this light wave is 1.1 x 108 hz, what is the wavelength of this microwave?