A mover pushes a 30 kg crate across a level florr with a force of 250 N, but the crate accelerates at a rate of only 5.83 m/s squared because a friction force opposes the crate's motio. What is the magnitude of the force of friction?

Which types of securities has the lowest priority in a bankruptcy proceeding?

Positive and negative charges are attracted to one another. The phenomenon of static electricity requires a separation of positive and negative charges. Laundry in a clothes dryer often becomes charged with static electricity while drying.

With some manipulation, the rydberg equation can be rewritten in the form e=constant * (1nf2-1ni2) which allows you to calculate the energy of the emitted light.

Which substances resist pH changes? Acids Hydrogen ions Buffers Bases

Which is not a part of a lever? fulcrum mechanical efficiency effort load Clear answer Back Next

A taxi hurries for 1 3/4 hours with a constant speed of 84 mph and then for another 1 hour 45 minutes with a constant speed of 24 mph. what is its average speed for the total trip?

A carbon atom has how many valence electrons?

X-rays UV light waves Sound waves Earthquake waves. All of these have which characteristic in common?

V=345m/s, 7210Hz, X=?

As a mercury atom absorbs a photon of energy, an electron in the atom changes from energy level d to energy level e. Determine the energy of the absorbed photon in electronvolts.