Which of the following is(are) true about the environment when the first bacteria originated?
The coil of a large electromagnet has an internal resistance of R = 9.50 Ω. It is in series with a source of EMF of 80.75 V and a switch. The switch is initially open. At t = 0 s, the switch is closed. The graph shows the electric current flowing through the coil as a […]
You need 100.00 mL of H2O and 5.00 mL ofliquid plant food to make a solution for yourplants. You forgot to bring a measuring cupout to the greenhouse, but you do have a scaleand know that the density of H2O is 1.00g/cm3, the density of liquid plant food is 1.21g/cm3 and 1 cm3 = 1 […]
Suppose a plant of this type grows 3.6 m in 14 days. What is its growth rate in micrometers per second?
Speed differs from velocity in the same way that __________ differs from displacement.
A. It is linked to morphogenesis. B. It involves cell division. C. It involves differentiation. D. It involves programmed cell death. E. All of the above are true; none is false.
A placekicker is about to kick a field goal. The ball is 27.0 m from the goal post. The ball is kicked with an initial velocity of 19.4 m/s at an angle above the ground. Between what two angles, 1 and 2, will the ball clear the 3.0-m-high crossbar? (Hint: The following trigonometric identities may […]
What is the density of human muscle in relation so water?
A person suffers from myopia requiring a correction of 4.50 D. The maximum accommodation possible is +6.0 D. Without correction, can this myope read the a book held 40cm from the eye?
3The laboratory synthesis of ethyl nalidixate is a linear 3 step process using 2-aminopicoline as the starting material. This reacts with diethyl ethoxymethylenemalonate to give an enamine via an addition/elimination mechanism. The product then undergoes a Jacobs-Gould cyclisation at high temperature to produce a hydroxypyridine. N-alkylation then affords ethyl nalidixate. Give the mechanisms of formation […]
