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Q1. A person stands between two speakers connected to the same source. Each speaker produces a tone with a frequency of 200 Hz on a day when the speed of sound is 330 m/s. The person is 1.65 m from one speaker and 4.95 m from the other. What sort of interference does the person sense?
Q2. Julie drives 80 to Grandmother's house. On the way to Grandmother's, Julie drives half distance at 45 and half the distance at 45. On her return trip, she drives half the time at 35 and half the time at 55.
A 1.07 µF capacitor is connected in series with a 1.90 µF capacitor. Find the equivalent capacitance of the two capacitors
State the condition that is necessary for a charge to move in a wire. Relate the definition of electric current to the units of current. Explain the cause of resistance and how the resistance of a wire can be determined.
A 2.00 kg. frictionless block is attached to an ideal spring with force constant 300 n/m. At t=0 the block has velocity -4.0 m/s, what is the position of the block when its speed is 2.5 m/s
The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 58 . To the crew's great surprise, a Klingon ship is 120 directly ahead, traveling in the same direction at a mere 30 .
The frequency of sound wave from an ambulance is 2,400 Hz. The velocity of sound is 345.0 m/s. find the frequency of the siren heard by the observer
A student wants to find out the speed of a high-speed projectile, but doesn't have a high-speed measuring device. what is the speed of the projectile just before the collision
Point charges q1=+2.00?C and q2=?2.00?C are placed at adjacent corners of a square for which the length of each side is 4.50cm, What is the electric potential at point b
An object of heat capacity 100 cal/°C is initially at 30°C. Estimate the resulting entropy change of the universe
A prosthetic leg has a mass of 3 kg and a center of mass of 20 cm from the knee joint. What is the moment of inertia about the knee joint
A spacecraft flies towards the Earth at a speed of 0.8c and shines a laser at an observer on Earth. At what speed would the laser light be moving
Compute the final equilibrium temperature.
A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 3.30 m/s. find the distance the sled moves before it stops
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