Answer:
a 
b 
Explanation:
Generally the force constant is mathematically represented as
substituting values given in the question
=> 
=> 
Generally the workdone in stretching the spring 3.5 m is mathematically represented as
=> 
=>
Generally the workdone in compressing the spring 2.5 m is mathematically represented as
=> 
=>
2.27 mps repeating.
This is the last question ill ever answer here. Thanks for being the last.
When the planet is closest to the Sun, speed v and kinetic energy are the highest, and gravitational potential energy is the lowest. When the planet moves farther away, the speed and kinetic energy decrease, and the gravitational potential energy increases.
Answer:
the activity of thallium is 1.54 kBq .
Explanation:
given,
half life = 3.7 years
R₀ = 10 kBq
time = 10 years
R = 10 × (0.153667)
R = 1.5367 ≈ 1.54 kBq
hence, the activity of thallium is 1.54 kBq .
