Compare the sounds produce by wave a and wave b. the human ear would hear
a) wave a as a louder sound than wave b.
b) wave a as a higher pitched sound than wave b.
c) wave a and b with the same pitch, but wave a as louder.
d) wave b has a louder and higher pitched sound than wave a.

Modify the equation fδt=δ (mv) to find the force of friction.

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?