How many joules are in 6,458 cal? Express you answer in scientific notation with correct number of significant figures

When reporting the mass of weighed solid, one should write all numbers in the digital scale estimate to the nearest 0.1 g (tenth place) estimate to the nearest 1 g (unit place)

Rewrite the following statement using a number in scientific notation.   The diameter of a certain atom is about 0.67 nanometers

Express the sum of the following equation to the correct amount of significant figures. 16 + 789.036 + 83.87 = ??

Convert the following into correct scientific notation:(a) 14.31X10¹(b) 851X10⁻²(c) 7500X10⁻³

What is the temperature in Kelvin if it is 84.2 °F outside?

QUESTION 2 Perform the following calculation and report the answer to the appropriate number of significant figures. 2.2 +21.94

A brand new, unopened gallon container strawberry "-Flavored" milk , when weighed in its plastic container with the , weighs 9.575 pounds After someone drinks all the milk from the container , they weigh the empty container and the lid and determine that the combined weight of the empty container and lid is 0.175 pounds What is the density of the strawberry milk , expressed as grams per ml? Express your answer using the correct number of significant figures

American football is played on a 100 yard long field, excluding the end zones. How long is the field in meters?