Calculate the wave speed for a wave with a wavelength of 2 m and a frequency of 0.3 Hz. v=lf
a.
0.6 m/s
b. 1.67 m/s
C. 0.15 m/s
d. 2.3 m/s

Acar tire contains 0.0380 m^3 3 of air at a pressure of 2.20 ×10^{5} 5 n/m^2 2 (about 32 psi). how much more internal energy does this gas have than the same volume has at normal atmospheric pressure, 1.01x10^5 5 pa?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?