A Skier Is Pulled Up A Slope At Constant Speed. The

A 5.0 × 10 2-N object is hung from the end of a wire of cross-sectional area 0.010 cm 2.The wire stretches from its original length of 200.00 cm to 200.50 cm. What is the elongation strain on the wire? 4.0 × 10 2 1.0 × 10 -2 2.5 × 10 -3 5.0 × 10 2 Which one of the following statements concerning Hooke's law is false? Hooke's law can be applied to a wide range of materials.Wind blowing N/NW at 20 mph. A temperature of 90º Fahrenheit. A mass of 200 kg. A block moving with a speed of 3 m/s at 30º above the floor. 1 and 2. 1 and 3. 2 and 4. 1 and 4. None of them. Velocity (v) is related to acceleration (a) and distance (d) by the following expression: v2= 2axp. What is the power p that makes this equationThe speed of a wave pulse traveling along a string or wire is determined by knowing its mass per unit length and its tension. In this formula, the ratio mass / length is read "mass per unit length" and represents the linear mass density of the string.4. A model airplane having a mass of 0.750kg is tethered by a wire so that it flies in a circle of radius 30m. The airplane engine provides a net thrust of 0.80 N perpendicular to the tethering wire. a. What is the torque that the net thrust produces about the center of the circle? b.A copper wire has a circular cross section with a radius of 4.50 mm. If the wire carries a current of 3.80 A, find the drift speed of the electrons in the wire. (n = 8.46 1028 electrons/m) Please help! 10 points to best answer!

DOCX Practice problems for Exam 1(Part A) - Iowa State University

speed of light in free space, A log of mass 450 kg is pulled up a slope by a wire attached to a motor, for steel is 2.2 × 1011 N m -2 and for copper is 1.1 × 1011 N m -2. On Fig. 5.1, sketch the variation with x of F for the copper wire for extensions up to 0.25 mm. The copper wire is not extended beyond its limit of proportionality.A copper wire has a density of [latex] \rho =8920\,{\text{kg/m}}^{3}, [/latex] a radius of 1.20 mm, and a length L. The wire is held under a tension of 10.00 N. Transverse waves are sent down the wire. (a) What is the linear mass density of the wire? (b) What is the speed of the waves through the wire?10.1.1 Magnetic Flux Consider a uniform magnetic field passing through a surface S, as shown in Figure 10.1.2 below: Figure 10.1.2 Magnetic flux through a surface Let the area vector be , where A is the area of the surface and its unit normal. The magnetic flux through the surface is given by A=A ˆ G n nˆ Φ=B BA⋅=BAcosθ GG (10.1.1)Fair Grounds (9) $100,000 Crescent City Derby, La-breds 3-years-olds, 1 1/16 miles. Winner: Who Took The Money ($3.00) Fair Grounds (10): $150,000 Tom Benson Memorial Stakes, fillies and mares 4

PhysicsLAB: Speed of Waves Along a String

The BGM-71 TOW ("Tube-launched, Optically tracked, Wire-guided") is an American anti-tank missile.TOW replaced much smaller missiles like the SS.10 and ENTAC, offering roughly twice the effective range, a more powerful warhead, and a greatly improved semi-automatic guidance system that could also be equipped with infrared cameras for night time use.High-speed CAN signaling drives the CANH wire towards 3.5 V and the CANL wire towards 1.5 V when any device is transmitting a dominant (0), while if no device is transmitting a dominant, the terminating resistors passively return the two wires to the recessive (1) state with a nominal differential voltage of 0 V. (Receivers consider any1 1:45 = 1 2ˇ r 9:80 L =)L= 0:52192 The length of increase is the di erence between these two lengths: l= 0:52192 0:38787 = 0:13405 6. One end of a piano wire is wrapped around a cylindrical tuning peg and the 12,000 newtons other end is xed in place. The tuning peg is turned so as to stretch the wire. The piano wire is made from steel (Y = 2A 10-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field.The total resistance of the wire and rail is 0.33?.Pulling the wire with a force of 1.3 N causes 4.2 W of power to be dissipated in the circuit.. 1. What is the speed of the wire when pulled with 1.3A 7.-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.31 ohms. Pulling the wire with a force of 1.3 N causes 4.5 W of power to be dissipated in the circuit. What is the speed of the wire when pulled with 1.3 N? What is the strength of the magnetic field?

A 7.0-cm-long wire is pulled along a U-shaped accomplishing rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.31 ohms. Pulling the wire with a pressure of 1.Three N reasons 4.Five W of power to be dissipated in the circuit.

What is the speed of the wire when pulled with 1.Three N?

What is the strength of the magnetic field?

I've been at this question for roughly part an hour now... can someone please help me figure it out? Please. Thank You!