Click on the boxes below to indicate the number of electrons or protons in each labeled position for a zinc atom (z=30, a=65). P
lease carefully note the specific information requested for the nucleus by the letter designation.
1 answer:
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Answer:
100 J, 225 J
Explanation:
The kinetic energy of an object is given by:
where
m is the mass of the object
v is the velocity of the object
In this problem, the initial kinetic energy of the object is
K = 25 J
Then, the velocity is doubled, which means
v' = 2v
Therefore, the new kinetic energy will be
Therefore, the kinetic energy has quadrupled:
Later, the velocity is tripled, which means
v'' = 3v
Therefore, the new kinetic energy will be
Therefore, the kinetic energy has increased by a factor of 9:
Answer:x=23.4 cm
Explanation:
Given
mass of block
inclination
coefficient of static friction
coefficient of kinetic friction
distance traveled
spring constant
work done by gravity+work done by friction=Energy stored in Spring