Answer:
Explanation:
30 rev/min (2π rad/rev) / (60 s/min) = π rad/s
α = Δω/t = (0 - π)/3 = π/3 rad/s²
θ = ½αt² = ½(π/3)3² = 1.5π radians
θ = 1.5π rad/2π rad/rev = 0.75 rev
Answer:
Explanation:
The faster particles move, the more kinetic energy they have. Within a given substance, such as water, particles in the solid state have the least amount of kinetic energy. This is because they only vibrate in place. Particles in the liquid state move faster than particles in the solid state.
<span>Keplers second law, that gravitational potential energy is lost when planets get near the sun and it becomes kinetic energy, best describes the reason why a planets speed will increase as it becomes closer to the sun.</span>
Yes, i believe they absolutely should make radon testing mandatory.
Being exposeed to radon substance for a certain period of time will dramatically increase children's chance in developing lung cancer.
The thing is, Radon is a type of substance that does not have a visual form, taste, or smell which make proper testing is the only way to detect them.
Change in KE = K_initial - K_final
= (½)m(v_final)² - (½)m(v_initial)²
= (½)(95)(0.47)² - (½)(95)(8.25)²
= -3222.476
