What is the acceleration (in m/s2) of a car going around a 500 m radius turn at a speed of 25 m/s?
a) 1.25
b) 5.33
c) 0.333
d) 0.45

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.

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.