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What is the natural frequency in (a) rad/ sec and (b) hertz of a spring- mass system if the spring constant id 25 N/m and a 100g mass is abruptly added to one end and allowed to oscillate freely?
The mass of the moon os 7.3*10^22 kg and its radius is 1.74*10^6m. What is the acceleration due to gravity on the surface of the moon? What is the weight of an astronaut if his mass is 75kg?
A locomotive is pulling 13 freight cars, each of which is loaded by roughly the same weight. The mass of each can be taken to be 37, 000 kg. If the train is accelerating at 0.42 m/s2 on a level track, what is the tension in the coupling among the sec..
A hydrogen atom initially in its ground state absorbs a photon and ends up in the n=6 state. Calculate the energy of the incident photon
A particle is located at the vector position rarrowbold = (9.00i hat bold + 10.00j hat bold) m and a force exerted on it is given by Farrowbold = (8.00i hat bold + 7.00j hat bold) N
An 8.40 gram bullet has a speed of 1.13 km/s. Find the bullet kinetic energy if its speed is doubled
A wire cable is rated to have a maximum power of 308 W. If the potential difference is 110 V, what maximum current can the wire handle
) If the pressure of the 2.2-cm3 volume is reduced to 1.2 10-11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
After fixing a flat tire on a bicycle you give the wheel a spin. If its initial angular speed was 4.92 rad/s and it rotated 13.2 revolutions before coming to rest, For what length of time did the wheel rotate
The positioin of a particle moving along the x-axis is given by x =( 21+22t-6t^2)m, where t is in s. What is the average velocity during the time interval t= 1.0 s to t = 3.0s
A mass m = 8.0 kg is attached to a spring and allowed tohang in the Earth's gravitational field. what would be its frequency
A 205-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp isinclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is0.900, and the log has..
a race car is approaching a jump ramp with the ramp angle at 10 degrees and 20 meters long and is 3.47 meters off the ground, what is the minimum velocity the car can go to make the jump
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