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An 68.0-m-long brass rod is struck at one end. A person at the other end hears two sounds as a result of two longitudinal waves, one traveling in the metal rod and the other traveling in the air.
What is the time interval between the two sounds? Take the speed of sound in air to be 344m/s.
The distance from the Sun to Jupiter is 5.2 times longer than the Earth-Sun distance. Take the intensity of sunlight at the Earth to be 1383 W/m2. Find the intensity of sunlight at Jupiter
The masses of the earth and moon are 5.98 × 1024 and 7.35 × 1022 kg, respectively. find the magnitude of the charge placed on each body
A 4.35-g bullet is moving horizontally with a velocity of +342 m/s, where the sign + indicates that it is moving to the right, What is the velocity of the second block after the bullet imbeds itself
What mass (in grams) of steam at 100°C must be mixed with 377 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 58.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, ..
A proton, q=1.60 x 10^19C moves 10.0 cm on a path parallel to the direction of a uniform electric field of strength 3.0 N/C What is the change in electric potential energy
A laser used in a holography experiment has an average output power of 4.93 mW. Calculate the energy (in joules) radiated with each pulse
The center of mass of a proton with mass 1.673·10-27 kg and alpha particle with mass 6.645·10-27 kg is moving with a speed of 6.993×105 m/s
What is the final speed of the crate after being pulled. On a very muddy football field, a 100 linebacker tackles an 80 halfback. Immediately before the collision, linebacker is slipping with a velocity of 8.5 north and the halfback is sliding with..
The combined mass of the professor and the chair is 90-kg. He is pushed 2.60-m along the incline by a group of students who together exert a constant horizontal force of 600-N. The professor speed at the bottom of the ramp is 1.75m/s. use the work..
A box is sliding up an incline that makes an angle of 13.4° with respect to the horizontal. How far does the box travel along the incline before coming to rest
You hold a spherical salad bowl 90 in front of your face with the bottom of the bowl facing you. The salad bowl is made of polished metal with the 30 radius of curvature. Where is the image of your 2.0 tall noses located.
M1 is five times more massive than M2. One force acts on the hanging mass, but the net force acts on both masses. Once you have the acceleration, you can compute the distance.
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