Write the answer down. Then, round off to the correct number of significant figures. # of SF Correct SF 8.268 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16 17. 21.00 cm 3.00 feet 34.5 lbs 55 Joules 78 kg 23 grams 70.0 N 12.5 hp 234 cm³ 45 minutes 2.000 years 4.0 days 55.0 mph 100 km/h 78 m/s 397 KWatt*hr 67 Ft*lbs 8.2677 0.9144 153.4636 13.1453 5.3447 0.023 15.7366 9321.248 0.000234 2700 730 96 80.6667 27.77 174.481 1429200000 1.35582 4 3 3 2 2 2 3 3 3 2 4 2 3 3 2 3 2 0.914 153 13 5.3 0.023 15.7 9320 0.000234 2700 730.0 96 80.7 27.8 170 143 1.4 inches meters Newtons calories slugs kg lbs watts 3 m seconds days hours ft/s m/s mph Joules Joules

The figure shows three vectors. Vector A has a length of 31.0, vector B has a length of 64.0, and vector Ć has a length of 22.0. Find each magnitude and direction. 70° 20° 70° direction: 71.112 |ä x B = Incorrect into screen direction: 67.676 |C x | = Incorrect out of screen At what angles above and below the horizontal line could vector A be at so that A × B = 0? 110° above or 70° below 0° above or 180° below 20° above or 160° below 90° above or 70° below Incorrect

The normalized 1s wavefunction (n = 1, l = 0) of any one-electron atom or ion can be written as 100 (r, 0, 0) = R₁0(r)Y(0,0) = Z3 παρ 3 where Z is the nuclear charge (number of protons) and a = πmpe2 €0h² (a) Construct an integral expression, in r, 0, and that can be used to determine the expectation value for the hydrogen atom potential energy, (V), and evaluate the integrals over and p. Be mindful of the integration volume element. En == e (b) Define x = Zr/ao and use this form to simplify the integral over r and evaluate it (using the tabulated integral provided above) to obtain an expression for (V). Your result should include a factor of V(a). Use the potential energy operator V(r) = where e represents the electron charge and is the permittivity of a vacuum. Express your result in terms of V(a) (that is, express it as something times V(a)). (c) The energy levels of one-electron atoms and ions can be written in terms of a as Z Z²e² (2²72²2) V (ao) = (E) 8περαon2 Using this and your…

Find the x and y components of the following vectors

A particle starts from the origin at t = 0 with an initial velocity of 4.7 m/s along the positive a axis. If the acceleration is (-3.4 i + 4.2 ) m/s², determine (a)the velocity and (b)position of the particle at the moment it reaches its maximum a coordinate.

Solve the equation x =at? + vt for the variable a.

Given: n1 = 1.33 θ1 = 37° θ2 = 24.91° Find n2 using Snell's Law.  Round your answer to the first decimal place. There are NO units for n2.

can't find correct direction of R