What is the definition of binary star system

A man wishes to pull a crate 15m across a rough floor by exerting a force of 100 N. The coefficient of kinetic friction is 0.25. For the man to do the least work, the angle between the force and the horizontal should be: A. 0 B. 14? C. 43? D. 66? E.

An a. m. station has a frequency of 967 MHz what is the corresponding wavelength to this radio station

A person pulls a toboggan for a distance of 13.2m along the snow with a rope directed 31 degree above the snow then tension in the rope is 95N how much work is done on the toboggan by the tension force

Prior to determining the experimental design, a scientist typically? A. makes observations. B. forms a hypothesis. C. performs an experiment. D. predicts the result of an experiment.

People often live on barrier island even though there not permanent why aren't they permanent

A large balloon is initially filled to a volume of 1.96 l at 318.44 k and a pressure of 2.89 atm. what volume of gas will the balloon contain at 1.77 atm and 336.33 k?

How to calculate kinetic energy? (physics/physical science)

What's the difference between the offspring of an asexual organism and a sexual organism

The contamination that results from the spread of bacteria from meat to vegetables is called

A rock has a mass of 5 kg on the moon. What is the mass of the rock on the earth