4. How does the list of potential explanations for
altruism contribute to our understanding of
psychologists' views on the subject?
A
B
O
C
The list of explanations emphasizes the variety
of ways psychologists explain this behavior.
The list of explanations suggests that the cause
of altruistic behavior is more likely biological
than social.
The list of explanations supports the notion
that the reason for altruistic behavior is
unimportant as long as people are helping
others.
The list of explanations proves that
psychologists are getting close to discovering
the one true cause for altruism.
O
D

we need to see the paragraphs in order to answer this.

your answer is c) experiments with water vapor showed that elements combine in specific proportions.

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: