Speed equals distance divided by time (Speed=Distance/Time).
For example if it takes someone three minutes to go three miles their speed is one mile a minute.
"Elias Howe invents the sewing machine" is the one event among the following choices given in the question that occurred first in 1846. The correct option among all the options that are given in the question is the fourth option or option "D". I hope that this is the answer that has actually come to your desired help.
Answer:
a)
, b)
, c) 
Explanation:
a) The initial potential energy is:


b) The efficiency of the bounce is:


c) The final speed of Danielle right before reaching the bottom of the hill is determined from the Principle of Energy Conservation:





Sc (21) , Y (39) , La (57) , Ce (58) , Pr (59) , Nd (60) , Pm (61) , Sm (62) , Eu (63) , Gd (64) , Tb (65) , etc (hoped that helped)
Answer:
Explanation:
(1) The surface area of the electrodes: Larger the surface area of the electrodes, less is the internal resistance.
(2) The distance between the electrodes: As the distance between the electrodes increases, the internal resistance of cell also increases.