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A block starts from rest at the top of a 30 degree inclined frictionless plane and after travelling 1 meter encounters a spring of constant 3.0 kN/m, rigidly attached to the plane. If the block's mass is 35 kilogram, find how much would the block compress the spring?
Two resistors when connected in series to a 110 line use one-fourth the power that is used when they are connected in parallel. calculate what is the resistance of the other
a Hydrogen atom is in the gound state. it absorbs some energy, leaving the atom in an excited state, calculate the wavelength of the second photon
A model rocket blasts off and moves upward with an acceleration of 13 m/s^2 until it reaches a height of 27 m, What is the speed of the rocket just before it hits the ground
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 96.3 m. How tall is the antenna
A 10.00kg box on a smooth, frictionless, horizontal surface experiences a downward force of 30n at an angle of 40 degrees to the horizontal. The box moves 1.50 m to the right. What was the work done by gravity.
A football punter accelerates a football from rest to a speed of 7 m/s during the time in which his toe is in contact with the ball, find what average force does the punter exert on the ball
A spaceship is measured to be 158 m long while at rest relative to the observer. what length does the observer measure
Three air carts have masses, 4m,2m and m. the most massive cart hasan initial speed of Vo; the other two carts are at restinitially. All carts are equipped with spring bumpers that giveelastic collisions.
a swimming pool measures 10 meters wide by 50 meters long by 4 meters deep. what is the water pressure at this point
A candle of height 2.0 cm is placed 10.0 cm in front of a diverging (concave) lens of focal length -6.0 cm. Where is the image of the candle
Determine the binding energy of the last neutron in a 2311Na nucleus. The masses of the neutral atoms of 2311Na and 2211Na are 22.989770 u and 21.994437 u
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. obtain How long is the arm of the centrifuge
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