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A laboratory technician drops a 0.0770-kg sample of unknown material, at a temperature of 100.0°C, into a calorimeter. The calorimeter can, initially at 23.0°C, is made of 0.150 kg of copper and contains 0.200 kg of water. The final temperature of the calorimeter can and contents is 25.6°C. Compute the specific heat capacity of the sample.
A block with a mass of 8 kg is at rest on a horizontal surface. The coefficiant of static friction between the block, What is the magnitude of the frictional force on the block
Assume the masses described in the preceding problem are 1kg and 100kg in that order. Compare the accelerations while they are interchanged.
A skydiver with his parachute has a combined mass of 79 kg and an approximate frontal area of 0.71 m^2. Calculate the terminal velocity of this skydiver in a horizontal position
a 56kg student runs at 5.0 m/s, grabs a hanging rope, and swings out over a lake (as shown). He releases the rope when his velocity is zero, draw the FBD of the student on the rope
Water is in the big beaker in the figure on the left. Scale 1 reads 96 newtons, scale 2 reads 531 newtons, and scale 3 reads 0 newtons. The hanging block has a density of 10 × 10^3 kg/m3. To nearest tenth of a newton what does scale 1 read after t..
A ball is thrown upward from the top of a building at an angle of 60.0° to the horizontal, What is the horizontal distance (in m) covered by ball before hitting the ground
A long solenoid that has 1,105 turns uniformly distributed over a length of 0.452 m produces a magnetic field of magnitude 1.00 10-4 T at its center
Explain the di?erences between the electron energy spectrum of β- decay and that from an internal conversion process. What are the di?erences of these two decay mechanisms?
A skier of mass 100 kg starts from rest and comes down a slope of constant angle 25 degrees with the horizon. What is the length of the slope
Three point charges, -6.05 10-9 C, -9.75 10-9 C, and +7.50 10-9 C, are fixed at different positions on a circle. What is the radius of the circle
The nucleus of an atom has a radius of about 6.8×10-15 m. The electron is normally at a distance of about 1.3×10-11 m from the nucleus. find the volume of the atom
A flat surface with area 1.6 m2 is in a uniform electric field of 560 N/C. What is an electric flux through the surface when it is oriented as follows.
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