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1) A 170g wood block is firmly attached to a very light horizontal spring, as shown in the figure. The block can slide along a table where the coefficient of friction is 0.23. A force of 29N compresses the spring 12cm.
- If the spring is released from this position, how far beyond its equilibrium position will it stretch on its first cycle?
2) Determine the escape velocity from the Sun for an object at the Sun's surface (r=7.0×105km, M=2.0×1030kg).
Determine the escape velocity from the Sun for an object at the average distance of the Earth (1.50×108km).
a calculate the resistance per unit length of a nichrome wire which has a radius of 0.321 mm. b if a potential
A cloud mass moving across the ocean at an altitude of 2000 m encounters a coastal mountain range. As it rises to a height of 3500 m to pass over the mountains, it undergoes an adiabatic expansion.
Spaceman notices that his landing gear have compressed 8.7centimeter on earth when his rocket ship is at rest. Find the period of that pendulum in this planet
the springs of a 495 kg motorcycle have an effective force constant of 9130 nm. by what percent and in what direction
a patient is going to be prescribed bifocals which will be 2.00 cm from the eye. the prescribed powers in diopters for
Each of the plates of a parallel plate capacitor has an area of 10.6cm^2 and a plate separaton difference of 2mm. Calculate the charge on the capacator
At a certain instant a ball passes location m. In the next 4 seconds, the ball's average velocity is m/s. At the end of this 4 second time interval, what is the height y of the ball?
A skier starts from rest at the top of a hill that is inclined at9.5°with the horizontal. The hillside is 150 m long, and the coefficient of frictionbetween snow and skis is 0.0750.
He has a mass of 74.0 kg and his center of gravity is located at a horizontal distance of d1 = 0.730 m from his palms and d2 = 1.10 m from his feet. calculate the forces exerted by the floor on his feet
A person wants to push an 80-kg box across the floor. The coefficient of friction between the box and the floor is 0.5. What is the normal force experienced by the box as it sits on the floor
Consider a loop with 50 square turns that is 12 cm on a side and is in a uniform 0.6 T magnetic field. Find the current through a loop needed to create a maximum torque of 9.00 N · m
A laser beam shines onto a slit of width 0.1 mm and the diffraction pattern is projected onto a screen 2 m from the slit. what is the wavelength of the laser beam
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