A particle moving at 10 ms-1 West has a momentum of 1000 kg. ms-1 West, calculate the mass of the particle.

What do radio waves and microwaves have in common? both are at the side of the spectrum that has the shortest wavelengths. both are at the side of the spectrum that has the lowest radiant energy. both are at the side of the spectrum that has the lowest frequency. both are found next to visible light on the electromagnetic spectrum.

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2