Science

A snowboarder starts from rest at the top of a double black diamond hill, As she rides down the slope, GPs coordinates are used to deter mine her displacement as a function of time: x = 0.5t^3 + t^2 + 2t, where r and i are expressed in feet and seconds, respectively. Determine the position, velocity, and acceleration of the boarder t = 5 seconds. The motion of a particle is defined by the relation x = 2t^3 – 9t^2 + 12t + 10 where x and t are expressed in feet and seconds, respectively, Determine the time, the position, and the acceleration of the particle when v = 0 The motion of particle by the x = 6t^4 – 2t^3 – 123t^2 + 3t + 3. where and t are expressed in meters and seconds, respectively. Determine the time, the position and the velocity when a = 0 The motion of a defined by the relation x = t^3 – 9t^2 + 24t – 8 where x and t are expressed in inches and seconds, respectively, Determine when velocity is zero, position and the total distance traveled when the acceleration is zero. A girl operates a radio controlled model car in a vacant parking lot. girl’s position is at the origin of the xy coordinate axes, and the surface of the parking lot lies in the drives the a A(n line that the Ax coordinate is defined by the relation x(t) = 0.5t^3 – 3t^2 + 2, where x and t are in meters A and seconds, Determine when the zero, the position and total distance the acceleration is zero.

EXPERT ANSWER

4. What is the difference in composition between a sample of distilled water and one of the tap water? Specify what impurities are known to be involved. 5. What is the purpose of the boiling chip? How does a boiling chip produce the desired effect? 6. Explain why a packed fractional distillation column is more effective in separating two closely boiling liquids than an empty one. 7. Why is it dangerous to heat a compound in a distilling assembly that is closed tightly at every point and has no opening to the atmosphere?

EXPERT ANSWER

4. What is the difference in composition between a sample of distilled water and one of the tap water? Specify what impurities are known to be involved. 5. What is the purpose of the boiling chip? How does a boiling chip produce the desired effect? 6. Explain why a packed fractional distillation column is more effective in separating two closely boiling liquids than an empty one. 7. Why is it dangerous to heat a compound in a distilling assembly that is closed tightly at every point and has no opening to the atmosphere?

EXPERT ANSWER 4)Solution- The water which has no impurities or pure H2O is distilled water.Distilled water has very high electrical resistance. also various materials dissolvs in it and, they form ions as they dissolve,and ions conduct electricity. example if we add sugar to water, the conductivity increases very little, because it doesn’t ionize. and if …

4. What is the difference in composition between a sample of distilled water and one of the tap water? Specify what impurities are known to be involved. 5. What is the purpose of the boiling chip? How does a boiling chip produce the desired effect? 6. Explain why a packed fractional distillation column is more effective in separating two closely boiling liquids than an empty one. 7. Why is it dangerous to heat a compound in a distilling assembly that is closed tightly at every point and has no opening to the atmosphere? Read More »

The figure shows a rectangular loop of wire, 31 by 23 cm. It carries a curent of 2A and is hinged at one side.What is the magnitude of the torque that acts on the loop, if it is mounted with its plane at an angle of 44oto the direction of B, which is uniform and equal to 1.8T?

The figure shows a rectangular loop of wire, 31 by 23 cm. It carries a curent of 2A and is hinged at one side.What is the magnitude of the torque that acts on the loop, if it is mounted with its plane at an angle of 44oto the direction of B, which is uniform and …

The figure shows a rectangular loop of wire, 31 by 23 cm. It carries a curent of 2A and is hinged at one side.What is the magnitude of the torque that acts on the loop, if it is mounted with its plane at an angle of 44oto the direction of B, which is uniform and equal to 1.8T? Read More »

The figure shows a rectangular loop of wire of 50 turns, 18.0 cm by 26.0 cm. It carries a current of 1.69 A and is hinged at one side. What is the magnitude of the torque that acts on the loop, if it is mounted with its plane at an angle of 18.0 degrees to the direction of B, which is uniform and equal to 0.40 T?

The figure shows a rectangular loop of wire of 50 turns, 18.0 cm by 26.0 cm. It carries a current of 1.69 A and is hinged at one side. What is the magnitude of the torque that acts on the loop, if it is mounted with its plane at an angle of 18.0 degrees to …

The figure shows a rectangular loop of wire of 50 turns, 18.0 cm by 26.0 cm. It carries a current of 1.69 A and is hinged at one side. What is the magnitude of the torque that acts on the loop, if it is mounted with its plane at an angle of 18.0 degrees to the direction of B, which is uniform and equal to 0.40 T? Read More »

The figure shows a rectangular loop of wire of 50 turns, 14.0 by 44.0 cm. It carries a curent of 1.50 A and is hinged at one side. What is the magnitude of the torque that acts on the loop, if it is mounted with its plane at an angle of 27.0° to the direction of B, which is uniform and equal to 1.80 T?

The figure shows a rectangular loop of wire of 50 turns, 14.0 by 44.0 cm. It carries a curent of 1.50 A and is hinged at one side. What is the magnitude of the torque that acts on the loop, if it is mounted with its plane at an angle of 27.0° to the direction …

The figure shows a rectangular loop of wire of 50 turns, 14.0 by 44.0 cm. It carries a curent of 1.50 A and is hinged at one side. What is the magnitude of the torque that acts on the loop, if it is mounted with its plane at an angle of 27.0° to the direction of B, which is uniform and equal to 1.80 T? Read More »

A 80.0 cm wire carries a current of 0.60 A. The wire is formed into a circular loop and placed in a B field of intensity 1.79 T. Find the maximum torque that can act on the loop.

A 80.0 cm wire carries a current of 0.60 A. The wire is formed into a circular loop and placed in a B field of intensity 1.79 T. Find the maximum torque that can act on the loop. EXPERT ANSWER Torque = B I A 2 pi r = 80 * 10^-2 r = ( …

A 80.0 cm wire carries a current of 0.60 A. The wire is formed into a circular loop and placed in a B field of intensity 1.79 T. Find the maximum torque that can act on the loop. Read More »