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Q. A 40-cm length of wire has a mass of 6.0 g. It is stretched between two fixed supports and is under a tension of 175 N. What is the fundamental frequency of this wire?
Q. Two cars are traveling along a straight road. Car A maintains a constant speed of 110 km/h and car B maintains a constant speed of 110 km/h. At t= 0, car B is 45 km behind car A. How far will car A travel from t = 0, before it is overtaken by car B?
A 52kg ballet dancer stands on her toes during a performance with four square inches (26cm2) in contact with the floor. What is the pressure exerted by floor over the area of contact in some cases.
A point charge q1 = -8.9 μC is located at the center of the thick conducting shell of inner radius a = 2.2 cm and outer radius b = 4.5 cm, the conducting shell has a net charge of q2 = 1.1 μC.
Find out the magnitude and direction of the displacement
A 1000 {rm kg} wrecking ball hangs from a 15 {rm m}-long cable. The ball is pulled back until cable makes an angle of 25.0^circle with the vertical. By how much has the gravitational potential energy of the ball changed .
W hat least energy an incident alpha particle must have to penetrate the gold nucleus. What is the direction of the carbon atom after the collision.
What is the advantage of the new crumple zone design in new car's today when they are in a car crash, explain answer from a physics standpoint?
An electron with initial velocity v0 = 1.20 × 10^5 m/s enters a region 1cm long where it is electrically accelerated. It emerges with velocity v = 5.87 × 10^5 m/s. What is its acceleration, assumed constant? (Such a process occurs in conventional ..
The dummy in a crash test has a head of mass 3 kg. The dummy is strapped in firmly so that the body does not move. The car's forward speed changes from 24 m/s to zero in 0.23 s.
A certain superconducting magnet in the form of a solenoid of length 0.30 m can produce a magnetic field of 13.0 T in its core when its coils carry a current of 105 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find o..
A wooden block weighing 7 N is at rest on top of a wooden desk. The coefficient of static friction between the block and the desk is 0.41. Find out the minimum horizontal force required to move the block if the following occurs.
assuming the acceleration is constant throughout each time interval (but not necessarily the same in both intervals), what distance does the shuttle travel during the interval from 7.00 s to 1.00 min.
Find an expression for work done by the gas
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