When a 4.2g bullet hits a block of wood, it slows to a stop from an initial speed of 175.4 m/s. The bullet sinks 13.5cm into the wood. (Ignore the spin of the bullet.) a.) Find the net work done on the bullet as it comes to rest. b.) Find the net force on the bullet as it comes to rest.

Q: d. If the ball was to then fall off the balcony back towards the ground, explain what is happening…

A: If the ball was to then fall off the balcony back towards the ground, explainwhat is happening to…

Q: A1 130.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into…

A: The given problem is based on the law of conservation of energy, Conservation of momentum and change…

Q: Shawn (m = 45.0 kg) rides his skateboard at a local skate park. He starts from rest at the top of…

A:

Q: In a Broadway performance, an 83.5-kg actor swings from a R = 3.65-m-long cable that is horizontal…

A:

Q: A 65.0 kg base runner begins his slide into second base when he is moving at a speed of 4 m/s. The…

A: (a) Mechanical energy lost by friction is equal to the change in kinetic energy ∆E=12m∆v2=1265.0 kg4…

Q: QUIZ IN COMPONENT METHOD A - F = 250 N, 57° E of S B - F2 = 175 N, 80° S of W C - F3 = 430 N, 72° W…

A:

Q: A fireworks rocket is fired vertically upward. At its maximum height of 80.0 m, it explodes and…

A: Given, Mass of the rocket first piece, m1=1.40 kg, Mass of the rocket second piece, m2=0.28 kg,…

Q: A1 195.0 kg car traveling initially with a speed of 25.000 m/s in an easteriy direction crashes into…

A:

Q: 9. In target practice, a thick board stops a bullet at a penetration depth of 5.80 cm. Use the…

A: Given  Mass of bullet, m = 7.50 g  Initial speed ,V = 650 m/s  Thickness 1, t1 = 5.80 cm  Thickness…

Q: Two coupled boxcars are rolling along at 2.5 m/s when they collide with and couple to a third,…

A:

Q: A bowling ball is suspended from the ceiling of a lecture hall by a strong cord. The ball is drawn…

A: Given that a ball is suspended from ceiling.The ball is drawn away from its equilibrium position and…

Q: Adult cheetahs, the fastest of the great cats, have a mass of about 72 kg and have been clocked at…

A: Given data: Mass (m) = 72 kg Speed (v) = 70 mph

Q: (a) Estimate the speed of the Bullet. (b) How nuch kinetic energy is lost in the impact? fr) What…

A: Given that; Mass of bullet, m=2×10-3kg Mass of block, M=4.98×10-1kg New speed of bullet and block,…

Q: A 72-kg base runner begins his slide into second base when he is moving at a speed of 3.0 m/s. The…

A: Given,

Q: 33. • IP A 0.420-kg block of wood hangs from the ceiling by a string, and a 0.0750-kg wad of putty…

A:

Q: During your winter vacation, you enter a “dogsled” race across a frictionless frozen lake, in which…

A: Given that                The mass of the sled (m) = 50Kg                Force (F) = 100N…

Q: A 10.0 g marble slides to the left at a speed of 0.400 m/s on the frictionless horizontal surface…

A:

Q: (II) A 125-kg astronaut (including space suit) acquires a speed of 2.5 m/s  by pushing off with her…

A: Given The mass of astronaut is ma = 125 kg. The final velocity of the astronaut is vaf = 2.5 m/s.…

Q: A 375g ball is thrown with an initial horizontal velocity of 21.0m/s at a 4.50kg target that is…

A:

Q: A 1,000-W motor powers a hoist used to lift cars at a service station. (a) How much time would it…

A:

Q: Adult cheetahs, the fastest of the great cats, have a mass of about 70 kg and have been clocked to…

A:

Q: A cart has a mass of 5 kg is sitting at the top of an inclined plane, which is 5 m long and meets…

A: Mass of the cart, m = 5 kg Inclined distance traveled by the cart, s = 5 m Angle of inclination, θ =…

Q: 5. An arrow of mass 40.0 g and initial speed of 150 m/s is fired into a bullseye target stand with…

A: Given that,            Mass of arrow, ma = 40 g = 0.04kg             Initial speed of arrow, vai =…

Q: •5 A father racing his son has half the kinetic energy of the son, who has half the mass of the…

A:

Q: You kick a 225 g rock from the edge of a cliff while hiking along the edge of the Grand Canyon. (a)…

A: Given: Rock mass m =225 g = 225×10-3 kg Time t1 =4 s

Q: loaded 305 kgkg toboggan is traveling on smooth horizontal snow at 4.60 m/sm/s when it suddenly…

A: The toboggan’s mass is, The distance traveled by the toboggan is, The toboggan’s initial speed is,…

Q: A 2.0-kg pistol fires a 0.90-g bullet with a muzzle speed of 1000 m/s. The bullet then strikes a…

A:

Q: (a) A 70-kg man steps out a window and falls (from rest) 1.2 m to a sidewalk. What is his speed just…

A: The speed of the man just before he strikes the pavement can be obtained as

Q: A car and a truck are each moving with the same kinetic energy. Assume that the truck has more mass…

A:

Q: A 0.160 kg hockey puck starts from rest and reaches a speed of 22 m/s when a hockey stick pushes on…

A:

Q: rea A 65.0-kg boy and his 40.0-kg sister, both wearing roller blades, face each other at rest. The…

A:

Q: -N force is applied to a 100-kg cart at rest for 5 seconds on a frictionless surface. (a) What’s…

A: a) The change in momentum of the cart is    ∆p=F∆t      =70 N5 s      =350 N·s b) According to…

Q: A 1200 kg car traveling initially at 25.0 m/s in an easterly direction crashes into the back of a…

A:

Q: A 3,000 kg truck travelling at 50 km/hr strikes a stationary 1,000 kg car, locking the two vehicles…

A:

Q: 1. A 1000 kg car is driving forward with a speed of 25 m/s. It comes to rest in a distance of 100m.…

A:

Q: A 2100 kg truck traveling north at 41 km/h turns east and accelerates to 51 km/h. (a) What is the…

A: Given data: Mass of the truck m=2100kg Initial velocity vi =41 km/h Final velocity,vf=51 km/h

Q: 1. A baseball outfielder throws a 0.15-kg baseball at a speed of 40 m/s and an initial angle of 30°.…

A:

Q: A 61-kg base runner begins his slide into second base when he is moving at a speed of 3.9 m/s. The…

A: Given: The mass of runner m = 61 kg. Speed of runner v1 = 3.9 m/s. Coefficient of friction = 0.7

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.