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A dog running in an open field has components of velocity vx = 2.6 m/s and vy = -1.8 m/s at time t1 = 10.7 s . For the time interval from t1 = 10.7 s to t2 = 21.6 s , the average acceleration of the dog has magnitude 0.45 m/s2 and direction 29.0o measured from the +x-axis toward the +y-axis.
At time t2 = 21.6 s , what is the y-component of the dog's velocity?
What is the magnitude of the dog's velocity?
What is the direction of the dog's velocity (measured from the +x-axis toward the +y-axis)?
A curved mirror has a focal point. Images form at the focal point, right? But I've seen problems where this is not true. I am really confused. Can you help clear me up? What is the point of the focal point and where is the image if I am wrong??
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a proton is located at the origin and a second proton is located on the x-axis at x 6.82 fm 1 fm 10-15 m.a calculate
Determine the wave speed on the string and determine the speed of sound from the data given.
A tungsten wire has a radius of 0.070 mm and is heated from 20.0 to 1330 oC. The temperature coefficient of resistivity is ? = 4.5 x 10-3 (Co)-1, How long is the wire
Two forces are the only forces acting on a 3.0 kg object whichmoves with an acceleration of 3.0 m/s2 in the positive y direction.If one of the forces acts in the positive x direction and hasmagnitude of 8.0 Newtons, what is the magnitude of the other..
Two narrow slits are .025 mm apart. When a laser (λ = 633nm) shines on them, bright fringes form on a screen that is a meter away. These fringes are 3.0cm apart. What is the separation among the second order the central fringe and bright fringe?
question spring stretches by 0.0186 m when a 3.24-kg object is suspended from its end. how much mass should be attached
A wind turbine is initially spinning at fix angular speed. As the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.162 rad/s2. Evaluate the initial angular velocity of the turbine
jordan is building a compound microscope using an eyepiece with a focal length of 7.50 cm and an objective with a focal
calculate the ratio of the rates of stimulated emission to spontaneous emission for a hene laser operating at 632.8nm.
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