Answer:
(C) Independent variable
Explanation:
Independent is the variable used by the experimenter to vary a condition of interest in the experiment (temperature in this case). This measure is varied over a sensible range to induce changes in other aspects (dependent variables; level of aggression in this case) which are measured during the experiment.
Answer:
Synaptic pruning is an essential part of brain development. By getting rid of the synapses that are no longer used, the brain becomes more efficient as you age.
Answer:
W = 3.73 eV
Explanation:
Given data:
wavelength of photons 240 nm
kinetic energy 1.45 eV
B y using photoelectric equation
Kinetic Energy = Photon Energy - work friction


= 5.179 eV
= 5.18 eV
= (5.18 - 1.45) eV
W = 3.73 eV
B, do earthworms prefer bright light or darkness!
Answer:
L = I α t
Explanation:
given,
rotational inertia = I
initial velocity = ω₀
magnitude of acceleration = α
angular momentum = L
time = t
angular acceleration



ω = α t..............(1)
angular momentum
L = I ω
putting value from equation (1)
L = I α t