When there is no number in front of a chemical formula in a chemical equation, what number is understood?

A sky driver has a mass of 65kg. Calculate the weight of the sky drive. Air resistance on the falling object is 520 N. What is the net force on the sky driver.

A box of mass 14 kg sits on an inclined surface with an angle of 52degrees. What is the component of the weight of the box along the surface?

Which type of radioactive decay results in no change in mass number and atomic number for the starting nucleus?

A hiker walks 9.4 miles at an angle of 60° south of west. Find the west and south components of the walk. Round your answers to the nearest tenth. Ax = miles

True or False: Less power is required while lifting a box up quickly than while slowly lifting it. A source of energy is required to do work.

Which compound is composed of oppositely charged ions

Sara, who weighs 66 kg, is on a guilt trip after eating a 788-Calorie (788 kcal) breakfast of pancakes loaded with fruits, cream, and syrup. She decides to work out before going to her weekly weight-watchers' meeting.

Can you get sunburned through glass?

Which statement about a signal transduction pathway is true? a. A signal transduction pathway provides a means for a signal molecule to pass through the cell membrane and initiate a chain of events inside the cell. b.

If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be A. greater than the force of friction exerted upon the car. B. less than the force of friction exerted upon the car. C.