Ga trough is 32 feet long and a cross section has the shape of an isosceles trapezoid that is 44 feet wide at the top and 40 feet wide at the bottom. the trough is 16 feet deep. if the trough is filled wih water at the rate of 40 feet3/hour, how fast is the water level rising when the water is 12 feet deep?

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2

According to research, which of the following statements reflecting the relationship between emotion and the prefrontal cortex is false? select the best answer from the choices provided the prefrontal cortex to regulate one's emotional response. the prefrontal cortex is activated when processing information associated with stress. sensory input indicating emotion first enters the prefrontal cortex before traveling to the amygdala. the prefrontal cortex processes information associated with emotional pleasure.