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A) A skydiver drops from a hot air balloon floating 5000 meters above the ground. The skydiver's parachute now opens instantly, and the effects of air resistance return so that the skydiver floats safely to the ground. From this point, it takes another 7.0 minutes until the skydiver lands. What was the average vertical speed of the skydiver while "under canopy," in m/s?
B) A mass is on a slope at ? = 30? to the horizontal. From rest, it accelerates down the slope at 2.2 m/s2. What is its speed when its vertical height is 1.5 m lower than its starting point, and is there any friction between the mass and the slope?
When an object is moving with uniform circular motion, which of the following statements is correct for the tangential velocity? It acts towards the center, It acts away from the center, It is perpendicular to the plane of the circle, or It is per..
An aircraft weighing 959 N is accelerated at 9 m/s/s for 11 seconds, How much work was done on the aircraft
The mass of Jupiter is 300 times that of the earth, and the diameter is 11 times that of the earth, find the acceleration due to gravity on Jupiter's surface
Five equal negative point charges -q are placed symmetrically around a circle of radius R as shown. Use a rough approximation to express the magnitude of electric field E at a point on the positive x axis a distance R from the center of the circle..
A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. What impulse did the athlete receive from the platform
A disk of radius "r" and uniform surface charge density finalized_jax">\(\sigma\) spins with angular velocity %u03C9 about the y-axis
The meaning and the basic applications of Newton's 1st and 2nd laws.
A 1.90 kg ball is attached to the bottom end of a length of fishline with a breaking strength of 10 lb (44.5 N). At what angle (measured from the vertical) will the fishline break
An alpha particle is moving at a speed of 5.0 × 105 m/s in a direction perpendicular to a uniform magnetic field of strength 0.040 T. What is the radius of the path of the alpha particle
Two objects (39.0 and 23.0 kg) are connected by a massless string that passes over a massless, frictionless pulley, find the acceleration of the objects
An athlete starts at point A and runs at a constant speed of 6m/s around a round track 100 m in diameter, what is x component of this runner's average velocity between points A and B.
A train has the length of 114 m and starts from rest with a constant acceleration at time t = 0 s. At this instant, a car just reaches the end of the train.
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