Hi, Can someone please help me with this question: In a physics lab, a rope is observed to make 240 complete vibrational cycles in 15s. the length of the rope is 2.8m and the measurements are made for the 6th harmonic (with six equal length sections). Determine the speed of the waves in the rope. V = 0.0625 x 2.8 = 0.175 m/s This is what I did- my teacher said to find the wavelength of one wave- which wouldn't be 2.8

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.

What property of an object determines its inertia?