Describe the region of the electromagnetic spectrum
A photon in the gamma ray region of the electromagnetic spectrum has an energy of 9.12 × 10-14 J, calculate the wave length in pm of the photon. Express answer in scientific notation.
Expected delivery within 24 Hours
A Li2+ ion emitts a photon with a wavelength of 5.41× 101 nm, calculate the energy difference(absolute value) in J between the initial and final state of theLi2+ ion. Express answer in scientific notation.
When a ball rolls down a incline plane it gains speed,because of gravity,when rolling up it losees speed because of gravity. Why doesn't gravity play a role when it rolls on a horizontal surface?
Design a combinational circcuit with three inputs x y and z and three outputs A B and C. When the binary input is 0 1 2 3 the binary output is one greater than the input.
Explain how this happens at an atomic level, taking into account what a current is, the opposite charges in an atom and how ionization occurs.
It was found that in a sample of 90 teenage boys, 70% of them have received speeding tickets. What is the 90% confidence interval of the true proportion of teenage boys who have received speeding tickets?
There are six 90º elbow (screwed) and two open gate valves. Assume iron fittings. Calculate the total head loss for this section.
A college believes that 24% of applicants to that school have parents who have remarried. How large a sample is needed to estimate the true proportion of students who have parents who have remarried to within 3% with 90% confidence?
A car driving along a highway at a speed of 22.9 m/s strays onto the shoulder. Evenly spaced parallel grooves called "rumble strips" are carved into the pavement of the shoulder. Rolling over the rumble strips causes the car's wheels to oscillate
1951380
Questions Asked
3,689
Active Tutors
1456419
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
You are a social worker working with foster children. You are making a home visit to Katie, age nine, and her foster family.
Suppose that a group of researchers would like to explore how we perceive objects in the real world, rather than just in a laboratory
Outline a social issue that is important to you. Describe why it is important to you, why it is important from a societal perspective and how you think
In our readings, we learn more about the nature versus nurture argument. For this discussion, I want you to go in depth a bit more and debate the importance
Think about where you were the most and least engaged when reading a classmate's draft. Think about what captured your attention
Examine historical literature to the most current period to see the growth of romanticism and EXISTENTIALISM. any major developments
The purpose is to examine the psychological factors affecting how teenagers in an impoverished urban area spend their time outside of school using: