How old is the peruvian corn
The 14C activity of some ancient Peruvian corn was foundto be 10 disintergrations per minute per gram of carbon. If present day plant life shows 15 dpm/g, how old is the Peruvian corn? Thehalf life of 14C is 5730 years.
Expected delivery within 24 Hours
The current density in a copper wire of radius 0.750 mm is uniform. The wire's length is 6.00 m, the end-to-end potential difference is 0.200 V, and the density of conduction electrons is 8.10 × 10^28 m-3. How long does an electron take (on
In the complex ion [ML6]n+, Mn+has seven d electrons and L is a strong field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?
The rope will break if the tension in it exceeds 2.10×104 , and our hero's mass is 80.5 . 1) If the angle between the rope and the horizontal is = 11.7, find the tension in the rope.
Find the center, foci, vertices, and lengths of the major and minor axes. If it is a parabola, find the vertex, focus, and directrix. If it is a hyperbola, find the center, foci, vertices, and asymptotes.
If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball?
Consider an electrochemical cell constructed from the followinghalf cells, linked by an external circuit and by a KCl salt bridge.1. an Al(s) electrode in 1.0 M Al(NO3)3solution 2. an Pb(s) electrode in 1.0MPb(NO3)2 solution.
The tangential acceleration at and the centripetal acceleration ac of a point at the edge of the disk.
Determine the amount of heat emitted when each of the following completely reacts (assume that there is more than enough of the other reactant):
1935956
Questions Asked
3,689
Active Tutors
1429287
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
How do you usually help parents shift their perspective when they expect more academic style activities at this age?
Childhood trauma, such as witnessing domestic violence or personally experiencing abuse, has significant neurobiological effects for both physical and psycholog
Question: The emotional impact of trauma and other stresses from infancy to adolescence is called:
When measuring participant self-esteem, we might want to have participants complete the measure twice, about a week apart,
The contributions of early theorists such as Atkinson, Shiffrin, and Tulving shaped the evolution of cognitive psychology.
Which behavior is a sign of GAD? Sleeping more than usual Excessive exercising Feelings of worthlessness Having difficulty staying focused on daily tasks.
Question: Which trait is a characteristic of individuals with positive mental health?