Apiece of wood with a density of 706 kg/m3 is tied with a string to the bottom of a water-filled flask. the wood is completely immersed. suppose the flask with the wood tied to the bottom is placed on a scale. at some point the string breaks and the wood rises to the surface where it floats.

part a

when the wood is floating, is the reading on the scale greater than, less than, or equal to its previous reading?

part b

choose the best explanation from among the following:

when the block is floating it no longer pulls upward on the flask; therefore, the reading on the scale increases.
the same mass is supported by the scale before and after the string breaks, and therefore the reading on the scale remains the same.

What is the magnitude of the resultant vector round your answer to the nearest tenth

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.

Time remainin52: 42the chart shows data for a moving object.which conclusion is best supported by the information inthe chart? time (s)velocity (m/s