Question 1 of 11
The graph shows a car's velocity over time.
Velocity versus Time
60
40
Velocity, in mph forward
2 3 45
Time, in seconds (s)
What is the car's acceleration from 0 to 1 second?
A. 10 mph/s
B. 8 mph/s
0 C, 60 mph/s
D. 20 mph/s
What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers
Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.