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Q. A 61.0 kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12 m. If the skier's speed at point A is 7.5 m/s (before entering dip), what is the normal force exerted by the snow on skier at point B (at bottom of the dip)? Ignore frictional forces.
Q. Answers for an elevator are moving down with an acceleration of 3.360 m/s. what would be the apparent weight of a 64.20 kg man in the elevator?
A 25kg solid door is 220cm tall, 91cm wide. What is the door's moment of inertia for rotation about a vertical axis inside the door, 15cm from one edge.
A particle has initial velocity 5 m/s due east and acceleration 2 m/s^2 due west. Find the distance traveled during 3rd second of the motion.
An 11g bullet is fired into an 11kg wood block that is at rest on the wood table. The block, with the bullet embedded, slides 5.11 across the table. The coefficient of kinetic friction for wood sliding on wood is 0.25.
A tuning fork vibrating at 516 Hz falls from rest and accelerates at 9.80 m/s2. How far below the point of release is the tuning fork while waves with a frequency of 489 Hz reach the release point? Take the speed of sound in air to be 340 m/s.
The drawing shows an equilateral triangle, each side of that has a length of 2.00 cm. Point charges are fixed to each corner, as shown. The +4.0 C charge experiences a net force due to the charges qA and qB. This net force points vertically downwa..
Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
A horizontal board weighing 198 N is supported at points A and B. The plank serves as a platform for a painter, who weighs 558.5 N. Find out the maximum distance D, such that the plank would not tip, no matter where the painter stands.
If the height of the candies in the container increases at the rate of 0.29cm/s, at what rate (kilograms per minute) does the mass of the candies in container increase.
Magnitude your response differs from the accurate answer by more than 10%. Double check the calculations. N direction.what is the maximum speed car can have without losing contact with road as it passes this highest point.
How far does the object compress the spring if same experiment is performed on the moon, where g = 1.63 m/s2 and air resistance is neglected.
Water flows at a speed of 1.7 m/s throughout a horizontal pipe having a circular cross section 5 cm in diameter. The pipe widens to a diameter of 14 cm. Treat the water as an idea fluid.
A plot of pressure as a function of volume is known as a pV diagram. pV diagrams are often used in analyzing thermodynamic processes. Consider an ideal gas that starts in state O, as indicated in the diagram. Your task is to explain how the gas proce..
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