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An object is solid throughout. When the object is completely submerged in ethyl alcohol, its apparent weight is 15.8 N. When completely submerged in water, its apparent weight is 12.6 N. What is the volume of the object? m3
An ideal gas occupies 0.14 m3 at an absolute pressure of 1.2×105 Pa and temperature 280 K, How many moles of gas are there
An astronaut on the Mars attaches a small brass ball to a 1.00- length of string and makes a simple pendulum. She times 13 complete swings in a time of 35.4 seconds. From this measurement she calculates the acceleration due to gravity on the Mars.
A star is about 6.00 light years from Earth. How long would the trip take according to an Earth based observer
As a person walks, the femur (upper leg bone) slides in a socket in the hip, Find the frictional force on the bone in the hip joint
A wooden block with mass 0.33kg rests on a horizontal table, connected to a string that hangs vertically over a friction-less pulley on the table's edge, Find the block's acceleration if k =0.18.
A car is stopped for a traffic signal. When the light turns green, the car accelerates, increasing its speed from 0 to 5.80 m/s, What is the magnitude of the linear impulse experienced by a 74.0-kg passenger in the car during the time the car acceler..
A 3.2-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. What is the elastic potential energy of the system when the 3.2-kg block is replaced by a 4.1-kg block
A force F = 4.2 Ni + 3.7 Nj + 1.2 Nk acts on a particle located at x = 3.3 m. What is the torque on the particle around the origin
Rumor has it that a photographic camera on a spy satellite can read the license plate of an automobile on the ground. what must be the diameter of the aperture of the camera
A cube of ice is taken from the freezer at -8.0°C and placed in a 97 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of the ice cube.
What is the relationship between the change in Kinetic Energy and the change in Gravitational Potential Energy of a system
A 4.90-kg ball, moving to the right at a velocity of +2.14 m/s on a frictionless table, Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
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