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A cart is propelled over an xy plane with acceleration components ax = 5.5 m/s2 and ay = -2.0 m/s2. Its initial velocity has components v0x = 8.0 m/s and v0y = 12 m/s. In unit-vector notation, what is the velocity of the cart when it reaches its greatest y coordinate?
A retired bank president can easily read the fine print of thefinancial page when the newspaper is held no closer than at arm'slength, What should be the focal length of an eye glass lens
You are standing on a canyon edge and you give a shout. After 4.9 s have passed, you hear your echo. Determine how far away the cliff wall is that your voice bounced off of
I just got this wrong for the third time. A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure.
A 15.0 mW laser puts out a narrow beam 2.00 mm indiameter. What is the average (rms) value of the electricfield
the position of a particle is given by the expression x=4cos(3pt+p), where x is in meters and t is in seconds. estimate the frequency and the period of the motion
A Young's double-slit interference experiment is performed with blue-green argon laser light. The separation between the slits is 0.525 mm, What is the wavelength of argon laser light
A dielectric-filled parallel-plate capacitor has plate area of 30cm^2 and plate separation of 5mm. The capacitor is connected to a battery that creates a constant voltage of 10V. The dielectric constant is 3. All through the problem, use epsilon_0..
imagine that you have a 100 w incandescent light bulb shame on you and it is shining uniformly into 4 steradians
In a crystal an electron is confined to a cubical region of length 0.5nm on a side. estimate the minimum allowed KE of the electron
A ball of mass 0.3 kg at the end of a rigid rod is undergoing circular motion in a circle of radius 0.5 m. Find the angular speed as a function of time
football player kicks a ball with a speed of 22.1 m/s at an angle of 46° above the horizontal from a distance of 38 m from the goal line. What is the vertical velocity of the ball at the time it reaches the goalpost
A 42 kg pole vaulter running at 11 m/s vaults over the bar. Her speed while she is above the bar is 0.7 m/s. Avoid air resistance, as well as any energy absorbed by pole, and determine her altitude as she crosses the bar.
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