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Problem: A speed skater moving across frictionless ice at 8.3 m/s hits a 5.1 m-wide patch of rough ice. She slows steadily, and then continues on at 6.5 m/s.
Part A: What is her acceleration on the rough ice?
I need help to find her acceleration on the rough ice.
A vertical spring with a spring constant of 2.16 N/m has a 0.31-kg mass attached to it, and the mass moves in a medium with a damping constant of 0.025 kg/s. The mass is released from rest at a position 4.5 cm from the equilibrium position. How long ..
a cube of wood floating in water supports a 200g mass at the centre of its top face. when the mass is removed, the cube rises by 2cm. determine the volume of the cube
In a certain time, light travels 4.78 km in a vacuum. During the same time, light travels only 2.37 km in a liquid. What is the refractive index of the liquid
A meter stick is found to balance at the 49.7 cm mark whenplaced on a fulcrum. What is the mass of the meter stick
115 g of glass beads, originally at a temperature of 75.0 oC, are added to 85.0 g of ethyl alcohol which is at a temperature of -50.0 oC. find the temperature of the mixture when thermal equilibrium is reached
Consider a piece of an n-type semiconductor 15 cm long. 0.7 cm wide, and 1.5 mm (hick. If we apply a 0.35 V voltage across the length, we find that the material conducts a current of 15 mA. If we then put it in a magnetic Held of 1.2 Tesla paralle..
Two boxes A and B are connected by a lightweight cord (disregard the mass of the cord). Box A is to the right of Box B. The mass of Box A is 10.0 kg. What is the acceleration of each box
A juggler on stilts throws a ball straight up, from a height of 2.5cm. It reaches a height of 3.5m, and then falls back to the ground. What is the impact velocity when it hits the ground
What greatest height above the break free point does it rise? How high is the break free point above ground.
Consider a charge of +1 nC (nanocoulombs, or Coulombs ×10?9) at (-3, -4) m, and a charge of -2 nC at (12, -5). Calculate the electric field strength at the origin
A charge of 2.19 µC is held fixed at the origin. A second charge of 2.19 µC is released from rest at the position (1.15 m, 0.470 m) . If the mass of the second charge is 2.10 g, what is its speed when it moves infinitely far from the origin?
The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1335 W/m2. What is the average energy density
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