1. A wire of resistance 4.5 22 and length 150 cm, has area of cross-section of 0.04 cm2. Calculate specific resistance of wire in SI units.
[0.000012 12 m)​

Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

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.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?