The two speakers in the drawing are vibrating in phase with the same frequency, and a listener is standing at point p. the distance d = 2.552 m.

a. what is the distance d1 from speaker 1 to the listener? keep 3 decimal places.

3.13 m (already solved)

b. what is the distance d2 from speaker 3 to the listener? keep 3 decimal places.

2.81 m (already solved)

c. what is the |d1−d2| ? report positive value. keep 4 decimal places.

0.32 m (already solved)

need d-g solved

d. if the listener wants to hear a loud sound at p, what is the longest wavelength of the sound waves? keep 4 decimal places.

e. the speed of sound in air is 343 m/s. what is the minimum frequency of the speakers if the listener wants to hear a loud sound at p? keep 2 decimal places.

f. if the listener wants to hear no sound at p, what is the longest wavelength of the sound waves? keep 4 decimal places.

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600