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The drawing shows a skateboarder moving at 5.98 m/s along ahorizontal section of a track that is slanted upward by 43.8 °above the horizontal at its end, which is 0.696 m above the ground.When she leaves the track, she follows the characteristic path ofprojectile motion. Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track.
The missle traveling at 15 m/s exploded into parts with mass 6and 14 kg. The velocity of the big part increased to 24 m/sin the direction of motion. Find velocity of the second part
In an experiment like you are going to do in Investigation 1 of lab this week, you count the number of beta rays from a 137Cs source. What is the average number of counts
The sound a string guitar can be varied by changing the tension in each string. what are the wave's natural frequencies
A model rocket rises with a constant acceleration to a height of 3.2m, at which point its speed is 26m/s. How much time does it take to reach this height
A violin string vibrates at 264 Hz when unfingered. At what frequency will it vibrate if it is fingered one fourth of the way down from the end
The mass of a certain planet is 6.15×1023 kg, and its radius is 2535 km. What is the acceleration due to gravity on the planet's surface
A sonar echo returns to a submarine 1.40 s after being emitted. What is the distance to the object creating the echo
Three moles of a monatomic ideal gas are heated at a constant volume of 2.23 m3. What is the change in the temperature of the gas
discuss the function of a washing machinedryer in terms of circular motions centripetal force and pseudo centrifugal
If half the potential energy of this water were converted into electric energy, explain how much electric power would be produced by these falls?
A uniform electric field of magnitude 600 N/C exists between two parallel plates that are 4.24 cm apart. Determine the distance from the positive plate at which the two pass each other. Ignore the electrical attraction between the proton and electr..
A string wrapped around a peg (diameter=2.00 cm) along the axis of a top is pulled with a constant tension of 5.92 N. what is the moment of inertia of the top
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