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A 0.2kg ball is dropped from a height of 2.20 meters. Determine the ball's kinetic energy as contacts the ground travelling at its maximum possible velocity
The aorta has an inside diameter of approximately 2.1 cm, compared to that of a capillary, which is about 1.0 × 10^?5 m (10µm). how many capillaries does the circulatory system have
Orange light of wavelength 0.61 µm in air enters a block of glass with er = 1.44. What color would it appear to a sensor embedded in the glass?
A 54 kg ice skater is moving at 39 m/s when she grabs theloose end of a rope, the opposite end of which is tied to apole. What is the ratio of this force to her weight
1) A projectile is launched with an initial velocity of v=4i+3j(m/s). What is the velocity of the projectile when it reaches its highest point? Explain.
A horizontal spring-mass system oscillates on a frictionless table. If the mass is 3.8 kg, the spring constant is 100 N/m, find the maximum extension of the spring
Before opening her parachute, an 800-N skydiver reaches a terminal velocity of 120mph. At this point, what will her acceleration be
A 2.10kg snowball is fired from a cliff 8.55 m high with an initial velocity of 11.90 m/s, directed 47.0° above the horizontal. (a) Using energy techniques, find speed of the snowball as it reaches the ground below the cliff. What is that speed (b) i..
A computer monitor accelerates electrons and directs them to the screen in order to create an image. find the change in electric potential energy for an electron that moves from one accelerating plate to the other
The angular momentum of Earth is constant
In diving to a depth of 346 m, an elephant seal also moves 422 m due east of his starting point. What is the magnitude of the seal's displacement
When an automobile moves with constant speed down a highway, estimate the total frictional force acting on the car
You are looking straight down on a magnetic compass that is lying flat on a table. A wire is stretched horizontally under the table, parallel to and a short distance below the compass needle.
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