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You are riding a bicycle at 15.0 m/s toward a woman who is holdinga screaming baby. You note that you hear the scream at a perfect middle A (440 Hz)
Part a) Find the actual frequency of the baby's scream. Assume Vsound=340 m/s
Part b) You sound a tuning fork and hear a beat frequency of 6 hertz. What are the possible frequencies of the sound coming from the tuning fork?
Two tiny conducting spheres are identical and carry charges of -21.4C and +51.0C. They are separated by a distance of 3.30 cm. (a) What is the magnitude of the force that each sphere experiences?
The gravitational force exerted on a baseball is 2.11 N down. A pitcher throws the ball horizontally with velocity 15.0 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 174 ms. The ball starts from rest.
what is the maximum weight of the crate that the system can support? What is the angle needed for equilibrium.
If his arms are capable of exerting a force of 1400 on the vine, what is the maximum speed he can tolerate at the lowest point of his swing? His mass is 82, and the vine is 6.00 long.
A uniformly charged plastic disk has a radius of 0.440 m. At what distance from the center along the central perpendicular axis is the magnitude of the electricfield equal to one-half the magnitude of the field at the center ofthe surface of the disk..
A 460 kg piano is being lowered into position by a crane while two people steady it with ropes pulling to the sides. Bob's rope pulls to the left, What is the tension in the main cable supporting the piano
assume you carry a bag of groceries weighing 127 N from your car to your kitchen, a distance of 57 m, without raising or lowering the bag.
A nail with a diameter of 1.00 mm projects 25.0 mm horizontally outward from a wall. how much does the nail deflect downward
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of1.70 mm. What is the surface charge density? What is the capacitance?
A 255 kg piano slides 4.2 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (Fig. 6-36). The effective coefficient of kinetic friction is 0.40 Figure 6-36
18 g of helium gas are placed in a cylinder with a movable piston. The gas is compressed very slowly from a state of ( p1 = 5.5atm, v1 = 32.7 × 10^3 m3) to a state of (p2 = 17atm, v2 = 11 × 10^3 m3 )
In radiofrequency (RF) ablation, a small needle is inserted into a cancerous tumor. When radiofrequency oscillating currents are sent into the needle, ions in the neighboring tissue respond by vibrating rapidly, causing local heating to temperatur..
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