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A spring stretches 5.0cm when a 0.20kg block is hung from it.
Part A. If a 0.60kg block replaces the 0.20kg block, how far does the spring stretch?
Express your answer using two significant figures. in cm.
Assume light with a wavelength of 850nm in a vacuum is incident upon fused quartz, which has an index of refraction of 1.46. What will the wavelength of this light be inside the quartz?
The equilibrium length of a certain spring with a force of constant k=250 N/m is 0.18 meter. Find the magnitude of the force that is required to hold this spring at twice the equilibrium length
during a process 10j o work are performed on a system while the system itself gives off 5j of heat. the internal energy
An object made of a single atomic element weighs 2.0000 N in air and 1.8965 N when completely submerged in water. What is the chemical symbol of the atomic element
A boy is standing on a frozen lake (i.e. no friction) holding a rope that is attached to his sled. He pulls on the rope and exerts a horizontal force of 5.2 N, What is the acceleration of the boy
A curve in a road has a banking angle calculated and posted for 80km/h The road is covered with ice so you drive slower than this limit What may happen to your car? why
For red light (lamda = 0.64um), ni in pure water is approx 1.3 x 10^-8; for blue light (lamda = 0.48um), ni is approx 1.0x10^-9. The deep end of a typical home swimming pool is approx 2.5m deep.
A narrow but solid spool of thread has a radius R and mass M. compute what force must you exert on the thread
An ant travels in a perfectly straight line in the –x direction some distance. It turns, and then travels some new displacement, 30.0 degrees above the +x axis, again, in a straight line, for some distance. The final leg of its little ant journey is ..
A light spring-gun projectile launcher is mounted on an 0.493 kg air track glider. What is the speed of the air-track glider after the gun is fired
If friction (rolling friction and air drag) results in a retarding force of 321 N at a speed of 50 km/h, what is the minimum energy needed to move the car a distance of 283 m at a constant speed of 50 km/h? (kJ)
A hydraulic lift is lifting a car that weighs 13 kN. The area of the piston supporting the car is A, How far must the small piston be pushed down to raise the car a distance of 1.3 cm
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