If the velocity of the stopper were doubled, but other things remained the same, the hanging mass would need to bea) doubledb) halvedc) tripledd) quadrupled

the closer the planet is to the sun, the larger the gravity

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it