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The Earth has an angular speed of 7.272·10-5 rad/s in its rotation. Find the new angular speed if an asteroid (m = 4.97·1022 kg) hits the Earth while traveling at a speed of 5.79·
The speed of sound in air is 343 m/s. (a) What is the integer n that describes the harmonic whose frequency is 715 Hz? (b) What is the length of the tube?
The musical notes and corresponding fundamental frequencies of two of these strings are G (196.0 Hz) and E (659.3 Hz). The linear density of the E string is 7.06 x 10-4 kg/m. What is the linear dens
A clean room is kept at a positive gauge pressure of 0.025 kPa with respect to the outside to minimize contamination from the outside. Assume that the door to the room has dimensions 0.7 m x 2 m. Wh
A certain defibrillator sends 0.12 C of charge through the heart. The capacitor responsible for holding this charge before it is released has a capacitance of 95 oF. How much energy is released when
What is the rotational inertia of the merry-go-round if a constant tangential force of magnitude 200 N, applied 1 m from the axis of rotation, was required to accelerate it? What was the angular spe
A 950kg compact car is moving with the velocity v1=32x +17ym/s. It skids on an icy, frictionless patch and collides with a 450kg hay wagon moving with velocity v2=12x + 14ym/s. If the final velocity
The International Space Station orbits the Earth at an average altitude of 362 km. Assume that its orbit is circular, and calculate its orbital speed. The Earth's mass is 5.97×1024 kg and its
An object is placed 15 cm from first converging lens of focal length 10 cm. A.) A second converging lens with focal length 5 cm is placed 10 cm to the right of the first converging lens.
Find the direction for each two-slit interference maximum on the screen as an angle away from the bisector of the line joining the slits.
Consider a series RLC circuit with R=15 OHms L = 200 mH, C = 75 75 µF and maximum voltage of 150. What is the rms current in the circuit at a frequency of 60 Hz?
A 0.50-µF capacitor is being charged in a circuit. An ammeter in the circuit reads 1.5 A. What is the displacement current through the capacitor?
What is the rotational inertiaof the merry go around starts from rest and accelerates at 0.010 rad/ s^2 for 14 s if a constant tangential force of magnitude 200 N applied 1m from the axis of rotatio
The rotational inertia of the system consisting of the man, bricks, and platform about the central vertical axis of the platform is 5.0 kg·m2. By moving the bricks the man decreases the rotat
A 1.5 kg particle-like object moves in a plane with velocity components vx = 30 m/s and vy = 30 m/s as it passes through the point with (x, y) coordinates of (3.0, -4.0) m. (a) What is its angular m
Two objects are orbiting each other under the influence of the force of the gravitation force between them. Object 1 has a mass of 200 kg and is twice as massive as Object 2. The distance between th
An m1 = 8.0 kg box lies on a friconless table, and is attached to a m2 = 5.0 kg box by a light cord passing over a rotating pully. The pulley has a mass of 3.6 kg and a radius of .40 m. Just as the
Assuming that this star is essentially at the edge of the galaxy, each of the stars in the galaxy has a mass equal to that of this star, and the stars are distributed uniformly in a sphere about the
Now all but on jump off, in a radial direction away from the center. What is the new angular velocity?
FOur people stand at the edge, must off the carousel, each with a mass of 65 kg. The four suddenly sltep onto the carousel all at once. I) What is the new angular velocity of the carousel after th p
A metal rod of length 48 cm falls toward the earth. The rod is horizontal and oriented east-west. At a moment when the rod's speed is 8m/s, approximately how many excess electrons are at the negativ
A series RLC circuit has a source of time-varying emf providing 15 V at a frequency f0, with L = 7.90 mH, R = 130 Ω, and C = 0.0510 mF. a) What is the resonant frequency of this circuit?
By what factor would the tension in a violin string have to change to tune it from Baroque pitch of 415 Hz to the modern pitch of 440 Hz?
A ray of light in the coating is incident on the plastic-glass boundary at an angle of 13.0° with respect to the normal. At what angle with respect to the normal is the ray transmitted into the