The x-component of the electric field of an electromagnetic wave traveling in the +y-direction through vacuum is described by the equation Ex=(871 N/C) cos. What is the angular frequency of this wave? Give your answer in units of 1015 rad/s and round to `t` decimal places. c=3.00 x 108 m/s

A square coil of wire with side `s`.0 cm and `N` turns sits in a uniform magnetic field that is perpendicular to the plane of the coil. The coil is pulled quickly out of the magnetic field in `t` s. If the resistance of the coil is `R` Ω and a current of `i` mA is induced in the coil, calculate the value of the magnetic field in units of T and round to two decimal places. (1 mA = 10-3 A)

The point charge at the bottom of the figure is Q = + `Q` nC, and the curve is a circular arc. What is the magnitude of the force on the charge Q due to the other point charges shown? (k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2 and 1 nC = 1 × 10-9 C) Hint: First draw the force vectors on Q due to the 3 charges (opposites attract, like repel). Then calculate the magnitude of the force between Q and each of the three charges. Then break them into x- and y- components and make sure you have the correct sign for each component (positive for components pointing to the right or up, and negative for components pointing to the left or down). For example F12x = |F12|cos(angle) and choose the correct sign for that component. Finally, add all the x’s together and all the y’s together. Those are the components of the total force on Q. Then find the magnitude of that vector.   Give your answer in units of N (1 N = 10-6 N) and round to the nearest whole number.

What day is the Live Lecture for MGT 101 Small Business Management?

A compound with a molecular formula C8H15ClO3 has the 1H NMR spectrum given. The IR spectrum shows a strong absorption at 1800 cm-1. Which of the structures shown is consistent with this spectrum?

Choose the correct table for the polynomial function   .

What event is often credited as the catalyst for the end of the Cold War under President Reagan’s administration?

For the reaction given below, 1.00 moles of A and 3.00 moles of B are placed in a 6.00-L container.           A(g) + 2B(g)  ⇌ C(g) At equilibrium, the concentration of A is 0.123 mol/L. What is the value of Kc? a. 1.41 b. 2.08 c. 6.34 d. 0.223 e. 0.495

Assuming the following reaction proceeds in the forward direction,         Fe3+(aq) + Co(s) -> Fe2+(aq) + Co2+(aq) a. Fe3+(aq) is oxidized and Co(s) is reduced. b. Fe3+(aq) is oxidized and Co2+(aq) is reduced. c. Co(s) is oxidized and Fe3+(aq) is reduced. d. Co(s) is oxidized and Co2+(aq) is reduced. e. Fe2+(aq) is oxidized and Co(s) is reduced.

The standard free energy change for a chemical reaction is +13.3 kJ/mol. What is the equilibrium constant for the reaction at 125 °C?  a. 2.8 x 10–6 b. 2.0 x 10–5 c. 4.7 x 10–3 d. 3.8 x 10–2 e. 1.8 x 10-2