Observation: it is mid-summer and i go away for a holiday for two weeks. before i go, i water my vegetable garden
one last time and notice that everything is green and healthy. when i get back from my holiday, i notice that all the
vegetables have gone brown and are dead.
inferences: you havent watered it in awhile.
problem #6
observation: i am in the lab timing how long it takes to boil 100 ml of water in a beaker over a bunsen burner. i
observe it takes 5: 15 mins to boil the water. i want to get the most accurate answer possible so i repeat the test
again making sure everything is the same. this time it takes 7: 05 mins to boil the water. i think this is unusual so i
repeat the experiment a third time and it takes 5: 20 mins.
what could we infer about the differences in the times observed?
problem #7
someone hurry up and answer quickly plz? ?

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

i don't understand. explain it clearly

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft