A hammer has a mass of 2.0kg and is moving horizontally at a speed of 6.0 m/s when it strikes a nail, driving it 2 cm farther into a piece of wood.   a. What was the kinetic energy of the hammer? b. What is the average force exerted on the nail by the hammer?

Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=3 m/s at a starting point.…

A: Given: mass of an object, m = 20 kginitial speed, vi = 3 m/sfinal kinetic energy, KEf = 122 J

Q: Q2/ An object of mass 15 kg is moving with a uniform velocity of 4 ms. What is the kinetic energy…

A: Given data:  Mass (m) = 15 kg Velocity (v) = 4 m/s Required: Kinetic Energy (KE)

Q: When a 0.050 kg golf ball takes off after being hit, its speed is 42 m/s. a) What is the change in…

A:

Q: A car with a mass of 1290 kilograms is being driven at 17.9 meters per second when it runs into a…

A:

Q: A bicycle racer, with a mass of 84 kg, is has the same amount of kinetic energy as a car traveling…

A:

Q: Determine the kinetic energy of the projectile of mass 25 kg at the highest point of its trajectory,…

A: GIVEN: Mass, m=25 kg Initial speed, u=30 m/s Initial angle with respect to horizontal, θ=45°…

Q: Four objects (A, B, C, & D) make up a closed system. The table below shows their energy at various…

A: Given data:  Four points make a closed system  at t  = 0 s the energy at various points EA = 59 J,…

Q: An ice glider, that has a mass of 1640 kg, is initially moving at 20 m/s Nw. A wind accelerates the…

A: Since more than 3 sub parts are given , solution  for the first three is provided here. Please…

Q: A Cart having mass 250 g moves to the right at 0.400 m/s. It hits an end-stop and rebounds at 0.30…

A:

Q: Block A and block B collide and the impact is such that energy is conserved. Just before impact…

A: We have two blocks A and B. The mass of both the blocks is the same. Let the mass of block A be m.…

Q: An accelerating object of mass m-18 kg is fired with an initial speed v-7 m/s at a starting point.…

A: Given: The mass of the object is 18 kg. The initial velocity of the object is 7 m/s. The final…

Q: Shoebill storks are very large birds that can take flight. A particular Shoebill flies through the…

A: Given, Speed=10m/s, Kinetic energy=300J, Let mass of shoebill is m kg

Q: a .40 kg block initially at rest on a frictionless horizontal surface is acted upon by force of 5.0…

A:

Q: Object A and B have 25 J of kinetic energy. Object B has one-quarter the mass of object A. a.…

A: Kinetic energy of obejct A and B is Mass of obejct B is Work done on each object is Find:(a) The…

Q: m/s. 1) Draw a sketch of the situation, labeling all of the phy

A:

Q: A 7.0 kg bowling ball moves at 2.35 m/s. How fast must a 2.20 g Ping-Pong ball move so that the two…

A: Using the formula of kinetic energy, the kinetic energy of the bowling ball is:

Q: 11. A sled at Canada Olympic Park in Calgary has a mass of 25.0 kg. A rider with a mass of 78.0 kg…

A: mass of sled (m)= 25 kg Mass of rider (M) = 78 kg initial speed (v)= 1.2 m/sFinal kinetic energy…

Q: A player from the red team is skating across the ice when he collides with a player from the blue…

A: We need to draw the S/R energy diagram for interaction 3 : collision between two players. Given…

Q: Assume two small balls ball A and ball B. If A has double mass and triple kinetic energy of ball B,…

A:

Q: A 2.00-kg (20.0-N) stone is dropped from a height of 5.0 m, and strikes the ground with a velocity…

A: Weight of stone (w) = 20 N Mass of stone (m) = 2 kg Initial height (h) = 5 m Velocity with which the…

Q: Dr. Evil has a tank of sharks with frickin' laser beams attached to their heads! His henchmen throw…

A:

Q: A 1 kg block slides down a frictionless semicircular track from a height, h, and collides with a…

A: Given Data : The mass of block 1 is given as M1 = 1Kg. The mass of block 2 is given as M2 = 3Kg.

Q: Pam, wearing a rocket pack, stands on frictionless ice. She has a mass of 45 kg. The rocket supplies…

A: Given-          Mass,   m= 45kg          Displacement,   d= 22m          Initial speed ,u =…

Q: A person was trying to catch a ball with a horizontal velocity of 48 m/s. The mass of the ball was…

A: Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…

Q: Problem#4: How much kinetic energy a nail with a of 8.5 g can mass acquire when it is struck by a…

A: Given: The mass of the nail is 8.5 g. The mass of the hammer is 0.5 kg. The initial speed of the…

Q: - Who did more work? Explain

A: Solution : Work done (W) via Force (F) is equal to the change in Kinetic Energy (K.E) W = ∆K.E  W =…

Q: How fast (in meters per second) must an iron ball with a mass of 42.2 g be traveling in order to…

A: Given,Mass of the iron ball, m = 42.2 gKinetic energy of the ball, KE = 12.49 J

Q: Sheryl is driving along the highway in an 894 kg car. She initially drives at a velocity of 50 m/s.…

A: Given:-  The mass of the car is m = 894 kg  The initial velocity of the car is vi= 50 m/s  The…

Q: 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…

A: Given:Mass of the bullet = 4.2 gInitial speed of the bullet = 175.4 m/sFinal speed of the bullet =…

Q: 4. Two ice skaters collide and hold on to each other for balance. Initially, one 620N skater was…

A:

Q: A rifle bullet with mass m is fired horizontally with speed v0 when it hits a wooden block of mass…

A: "Since, you have asked Multipart Questions, thus as per Bartleby Guideline we will solve the First…

Q: A motorist is driving his car at 60 km/hr when he observes that a traffic light 250m ahead turns…

A:

Q: An accelerating object of mass m=17 kg is fired with an initial speed v-8 m/s at a starting point.…

A:

Q: An 80 kg man walks up a 5 m high stairs. The increase in gravitational potential energy of the…

A:

Q: A B or the roller coaster shown, point A is 59 m above the ground, and point B is 36_m ove the…

A:

Q: 0.8 0.6 0.4 0.2 0.25 0.50 0.75 1.00 Position, x (m) Force, F (N)

A: mass =  1.3 kg speed = 0.35 m/s at 0.27 m

Q: Projectile A with mass m is launched at an angle of 20°above the horizontal with a speed v0.…

A:

Q: Use G = 6.674 × 10-¹1 N m²/kg² to answer below questions. a. Evaluate the gravitational potential…

A: We have given the value of G1. We have to find the the gravitational potential energy between two…

Q: 19 A bullet of mass 5g strikes a ballistics pendulum of mass 75 kg with speed v and becomes embedded…

A:

Q: If R = 22.2 cm, M = 552 g, and m = 191 g in the figure, find the speed of the block after it has…

A:

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.