The diagram shows three vectors. Three vectors drawn on the x y plane. The first vector is 8 blocks long drawn in the positive x direction along the x axis and labeled P Subscript x Baseline. The second is drawn tail to tip method, is 6 blocks high, drawn north and labeled P Subscript y Baseline. The last is drawn from the tail of the first to the head of the second and labeled P. The angle between P and P Subscript x Baseline is labeled theta. Which best describes a relationship among the vectors? Vectors P and Py are components of vector Px. Vectors Px and Py are components of vector P.

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom