A closed pipe is 0.60 m long. The air temperature is 20°C. What is the fundamental frequency in the pipe? What would be the frequency of the 2nd harmonic in this pipe? What would be the wavelength of the 5thing harmonic in this pipe?

Player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. what is the horizontal velocity component of the ball to the nearest tenth of a m/s?

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?