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A girl throws a tennis ball upward with an initial velocity of 4 m/s. What is the maximum displacement of the ball?
How much work is done by the horizontal force F_p = 150 N on the 18 kg block of the figure when the force pushes the block 5.5 m up along the 32 degree frictionless incline
Your pet bats, Joe, Bob and Curly love coffee. unfortunately, after their Saturday morning cups of coffee, you are horrified to learn that the coffee is laced with radioactive isotope Y. Opening the window to let in some air 1 day later, two of your ..
A long, narrow rectangular loop of wire is moving toward the bottom of the page with a speed of 0.023 m/s (seethe drawing). The loop is leaving a region in which a 2.0 T magnetic field exists;
A child goes down a playground slide with an acceleration of 1.40. Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 31.0 below the horizontal.
An electron moves with a speed of 8.0x10^6 m/s along the +x axis. Calculate the magnitude of the magnectic force on the electron
During a hard sneeze, your eyes might shut for 0.47 s. If you are driving a car at 95 km/h during such a sneeze, how far does the car move during that time
two metal balls of mass m1 3 g diameter 3 mm and m2 4 g diameter 4 mm have positive charges of q1 4 nc and q2 5
Your telescope has a 700mm-focal-length objective and a 26-mm-focal-length eyepeice, You position film so that it caputures the image produced by the objective lens. What is the diameter of that image
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
Helium is used to fill a balloon of diameter 31 cm at 23C and 1.5 atm. The mass of a helium atom is 4.0026 u, the conversion factor from u to kg is 1.66 × 10?27 kg/u, What is the average kinetic energy of each Helium atom
A boy kicks a soccer ball to the right. A graph of Force on the y axis and time on the x axis shows the force on the ball reaches 100N from time 0 - .1 s, What is its final speed of the ball before it hits the ground
In the lab you place a beaker that is half full of water (density ρw) on a scale. You now use a light string to suspend a piece of metal of volume V in the water. The metal is completely submerged, and none of the water spills out of the beake..
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