1:) A baseball player throws a baseball at a speed of 40 meters per second at an angle of 30 degrees. The horizontal component of the baseball’s speed is?
A: 20 m/s
B: 25 m/s
C: 30 m/s
D: 35 m/s
2:) The driver of a car sounds a horn while traveling toward a stationary person. Compared to the sound of the horn heard by the driver, the sound heard by the stationary person has?
A: Lower pitch and shorter wavelength
B: Lower pitch and longer wavelength
C: Higher pitch and shorter wavelength
D: Higher pitch and longer wavelength
fastly give the answer!