A radioactive isotope has a half-life of ten days. how much of a 100 gram sample will be left after 20 days

The temp of equal masses of three different liquids A, BandC are 12°C, 19°Cand 28°Crespectively. The temp when A and B are mixed is 16°C, and when Band C are mixed is 23°C. The temp when A and C are mixed is

When you like a food and you put something on it that makes it taste diffrent and you dont like it, why does it still taste like the nasty one when you eat the regular one?

What factor determines the primary differences among living things? A) whether or not their bodies contain nucleic acids B) the type of complex carbohydrates in their diet C) the order of nucleotides in their DNA D) the variety of proteins in their

You do work on a body when you lift it against gravity. How does this work relate to gravitational potential energy? If the lifted body is dropped, what becomes of this energy?

How can the rate of the reaction be increased?

A 100 N box is placed on an inclined plane that makes a 30° angle with the horizontal. Calculate the component of gravitational force that acts down the inclined plane. A. 25 N B. 50 N C. 87 N D. 100 N

Approximately how many kelvins are equal to 60 c? a. 289k b. 323k c. 333k d. 413k

What are two ways to change velocity?

What is the main optical element of a refracting telescope?

Two water manometers are connected to a tank of air. One leg of the manometer is open to 100kPa pressure (absolute) while the other leg is subjected to 90kPa. Find the difference in deflection between both manometers, Delta h_a - Delta h_b.