A.) A 7,300-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are locked together after the collision and move with speed 3 m/s. Compute how much kinetic energy was "lost" in this inelastic collision. _______ J B.) A sprinter with a mass of 77 kg reaches a speed of 7 m/s during a race. Find the sprinter's linear momentum (in kg · m/s). (Enter the magnitude.) ________ kg · m/s

Q: 1.41 • For the vectors A, B, and Č in Fig. El.22, find the scalar prod- ucts (a) Ả • B; (b) B •Č; (c...

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Q: 3. Find the distance from axis A to the weights. By 2nd condition of equilibrium 7 m A A В v Wz= 18N...

A: Total length = 7  m W1 = 18 N W2 = 10 N Let the distance of W1 from axis A = d Distance of W2 from a...

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Q: 2.49 • CALC A rocket starts from rest and moves upward from the surface of the earth. For the first ...

A: t = 10 s  ay = (2.80 m/s3)t   

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Q: /hat path will the electron take after leaving the electric field? *

A: Electron has negative charge. When electron enters into electric field region it bends upward becaus...

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A: Distance of charge A from origin, rA=a rB=rC=(a2+a2)1/2 = (21/2)a Potential at origin, Vo = K{ QA/rA...

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A: Given data-                         distance between observer and the object (in open sea)   D =  0....

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A: Given Mass of the wire is m=6.0 g=6.0×10-3 kg Length of the wire is l=40.0 cm=0.400 m Frequency of v...

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A: Given  tires of a car make 85 revolutions as the car reduces its speed uniformly from 87.0 km/h to 5...

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A: We first find the velocity of the block+bullet after the impact. As the bullet stays in the block an...

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A: Given : Velocity at 5 s = 20 m/s Velocity at 20 s = 20 m/s Velocity at 30 s = 0 m/s

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Q: Problem 2. A ball is dropped down a well and 5 seconds later the sound of the splash is heard. If th...

A: t=5 secvs=330 m/s

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Q: A 10-cm-diameter, 1.0-m-long solenoid is wound with 2000 turns of superconducting wire. When the mag...

A: Given DataN=200 turnsd=10cm=0.1mR=0.05mr=R2=0.0250m{considering the loop radius}L=1m∆t=2.5sE=7.5×10-...

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A: Givenv1=15 mi/hrv2=45 mi/hrt=15 s

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Q: A horizontal aluminum rod 3.4 cm in diameter projects 7.0 cm from a wall. A 810 kg object is suspend...

A: Answer:- Given  Shear modulus (G) = 3 × 1010 N/m2  Length (L) = 7 cm =7× 10-2 m  Diameter of rod (d)...

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Q: Current (I) Voltage (V) Resistance (R) Power 0.40 17 20 75 1.5 220 110 55 68 210

A: Voltage V = IR Power= I2 R

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Q: A 46g golf ball is struck with a 180g golf club. The ball is initially at rest, and leaves the golf ...

A: 4) mass of ball = 46 g mass of club = 180 g initial velocity of ball = 0 msfinal velocity of ball = ...

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Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.