What is the concentration of H + ions at a pH = 2

What is the magnitude of B? speed=2.64*10^7 radius. 160m R=mv/|q|B,

A 2 kg block rests on a 34o incline. If the coefficient of static friction is 0.2, how much additional force, F, must be applied to keep the block from sliding down the incline?

For adults, the RDA of the amino acid lysine is 12 mg per kg of body weight. How many grams per say should a 71.0 kg adult receive

Que clase de enegia produce la mezcla de bicarbonato y vinagr

Bob and John are pulling in different directions. If Bob is pulling to the right with a force of 10N, and John is pulling to the left with a force of 12N A) What is the net force acting on the box?

Estimate the smallest possible period of a satellite in a circular orbit around earth. (mass and radius of earth is 5.98 x 1024 kg and 6.37 x 106 m. the universal gravitational constant g = 6.67 x 10-11 n. m2/kg2.)

What happens along a stationary front? a. Cold air rises over warm air. b. The flow of air is neither toward the warm air mass nor toward the cold air mass. c. Air moves so rapidly upward that hurricanes form. d. Wind stops completely.

Which of the following is a vector quantity (a) mass (b) speed (c) time (d) acceleration

A 85-kg astronaut (including spacesuit and equipment) is floating at rest a distance of 11 m from the spaceship when she runs out of oxygen and fuel to power her back to the spaceship. She removes her oxygen tank (3.

Find the specific gravity of the rose quartz. Specific gravity = density of of water. What are the units for specific gravity?