Questions and answers by

rggg

Questions (11)

At what point in a waterfall, do the drops of water contain the most gravitational potential energy?a at the top before they
1. 1 answer
2. 170 views
A machine uses an input force of 400 N to produce an output force of 800 N. What is the mechanical advantage of this machine?a
1. 1 answer
2. 271 views
Considering the law of conservation of energy, we believe that a super-duper bouncy ball should keep bouncing - forever. Yet, we
1. 1 answer
2. 227 views
Which best describes the law of conservation of energy?a Energy exists in these forms: mechanical, chemical, thermal,
1. 1 answer
2. 241 views
What is true about the energy in the system below?a the potential energy is lowest at point B because the distance between the
1. 1 answer
2. 182 views
Which falling object has the least kinetic energy when it collides on the ground?a 120 Kg of sand falling 12 m/s b 120 Kg of
1. 1 answer
2. 319 views
In particle accelerators such as the one shown, fields are employed to separate different subatomic particles. What type or
1. 1 answer
2. 421 views
Atoms bond to form molecules. Which structures or regions of the atoms interact in these bonds?(1 point)Responses A- electric
1. 1 answer
2. 203 views
When is the kinetic energy of an electron transformed into potential energy?(1 point)Responses A- when it interacts with other
1. 1 answer
2. 123 views
Which of the following has kinetic energy?(1 point)Responses A- a stretched spring B- a spring traveling down a flight of stairs
1. 1 answer
2. 143 views
Why do two electrons repel when they interact?(1 point)Responses A- because they both are subatomic particles B- because they
1. 2 answers
2. 254 views