•• Predict/Calculate Four waves are described by the following equations, in which all distances are measured in centimeters and all times are measured in seconds: YA (y(x, t) = Acos (2²/8/2-²1 = 10 cos (3x - 4t) ✔ YB = 10 cos (5x + 4t) yc = 20 cos (-10x + 60t) = 20 cos (-4x20t) YD y₁ = 20 cos (101-60t) (a) Which of these waves travel in the x direction? (b) Which of these waves travel i the direction? (c) Which wave has the highest frequency? (d) Which wave has the greatest wavelength? (e) Which wave has the greatest speed?

8 Please help thank you

•30 The source of a sound wave has a power of 1.00 µW. If it is a point source, (a) what is the intensity 3.00 m away and (b) what is the sound level in decibels at that distance?

Midterm Assignme X T General P X C | Chegg.c X 4/assigned/content/910569:391b7947-dbc9-46e6-93e0-a0d7324b1096 and Wave Motion ● Q Midterm 03 Practice Questions Review PDF b Join: 507164 a C d e Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. Question 06. Review An x-y coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the table as follows: a m1 = 1.1-kg object at the origin of the coordinate system, a m2 = 2.5-kg object at (x = 1.2, y = 2.0), and a m3 = 3.6-kg object at (x = 4.0, y = -1.2). Find the magnitude of the net gravitational force exerted by the other two objects on the object at the origin. 4.02 x 10-¹1 N 6.04 x 10-¹1 N 4.88 x 10-11 N 5.23 x 10-¹1 N Show Submitted Answer Midterm X 08. Rotati X Question 07. Review Show Correct Answer - 0 X 72 0 DELL Rotation XQ Anx-y co X X Confusing چرا + Carlos ✓ Check My Answer K 7 C Open in ^