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A child pulls a 5kg. toboggan with a 150N force 35 degrees above the horizontal 5m. How much work was done in moving the toboggan.
object o1 is 15.2 cm to the left of a converging lens with a 11.8-cm focal length. a second lens is positioned 10.0 cm
At a certain instant, the earth, moon, and a stationary 1500-kg spacecraft are at the vertices of an equilateral triangle of length 3.84 × 108 m. What is the magnitude of the net gravitational force acting on the spacecraft
At a certain instant a ball passes location m. In the next 4 seconds, the ball's average velocity is m/s. At the end of this 4 second time interval, what is the height y of the ball?
Two 4.0 cm × 4.0 cm electrodes spaced 2.0 mm apart form aparallel-plate capacitor. Inside the capacitor the electric fieldstrength is 6.2 X106 N/C. What is the charge on each electrode
An electron that has velocity = (3.1 106 m/s) + (2.3 106 m/s) moves through a magnetic field = (0.03 T) - (0.15 T) . (a) Find the force on the electron. N (b) Repeat your calculation for a proton having the same velocity. N
You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a 12.6 force, What would it weigh on earth
A uniform solid sphere of radius 0.503 m and mass 15.7 kg turns counter clockwise (when viewed from above) about the vertical axis through its center. Find its vector angular momentum when its angular speed is 3.08 rad/s. Wouldn't you use the formula..
A 3.00- length of copper wire at 20 has a 1.20--long section with diameter 1.8 and a 1.80--long section with diameter 0.90 . There is a current of 2.5 in the 1.8 -diameter section. What is the current in the 0.90 -diameter section? What is the magnit..
In a classic clip on America's Funniest Home Videos, a sleeping cat rolls gently off the top of a warm TV set. (Ignore air resistance and consider upward motion to be positive with zero at the top of the TV).
When the sum of all forces acting on a system is zero, the system is said to exist in a state of equillibrium. What is the mass corresponding to this force
A 9.5 kg mess kit sliding on a frictionless surface explodes into two 4.75 kg parts, one moving at 1.5 m/s, What was the original speed of the mess kit
Scientist calls a theory that unites many ideas in a simple way "beautiful." Are unity and simplicity among the criteria of beauty outside of science? Help support the answer.
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