A 8-kg body has three times the kinetic energy of an 12-kg body. Calculate the ratio of the speeds of these bodies. V12

Q: Calculate the initial kinetic energy of a 1 tonne meteorite which hits the Earth at a velocity of 25…

A: Part (4):Given: The mass of the meteorite is 1 tonne. The speed of the meteorite is 25 km/s.

Q: If a Saturn V rocket with an Apollo spacecraft attached has a combined mass of 2.5 x 105 kg and…

A: Given data, Combined Mass of the Apollo Spacecraft (m)=2.5×105 kg Speed of the spacecraft(v)=10.4…

Q: How fast must a 3000-kg elephant move to have the same kinetic energy as a 65.0-kg sprinter running…

A: We have to determine the speed of an elephant. We know the given data is given by, Mass of elephnt…

Q: A hawk of mass 10 kg dives to catch a mouse. During dive it loses 500 J of its potential energy. The…

A: Change in Gravitational Potential Energy = mass x acceleration x change in height 500 J = 10 kg x 10…

Q: The first car has twice the mass of a second car, but only half as much kinetic energy. When both…

A: Let , The first car mass = m1 second car mass = m2 Kinetic energy of 1st car = K1 Kinetic energy of…

Q: A person with a mass of 42kg starts from rest at position A, as shown, and then slides down to…

A: mass of person = 42 kg Initial velocity at A = 0 m/senergy lost from A to C = 4900 J height of A =…

Q: You give 90 J of kinetic energy to a 1 kg stone when you throw it. By how much do you increase its…

A: The energy gained by the stone = 90 Joules. Mass of the stone (m) = 1 kg.

Q: Learning Goal: A sled is being held at rest on a slope that makes an angle with the horizontal.…

A: Required to find the correct choice.

Q: Sandy and Chris stand on the edge of a cliff and throw identical mass rocks at the same speed. Sandy…

A: It is given that Sandy and Chris stand on the edge of a cliff and throw identical mass rocks at the…

Q: Calculate the kinetic energy of a 10 g bullet travelling at a velocity of 2500 km/h.

A: Given data:  Mass (m) = 10 g = 0.010 kg Velocity (v) = 2500 km/h Required: The kinetic energy (KE)

Q: Frustrated by another death in the game Elden Ring, Ryan throws his game controller at a wall. When…

A: Given: The mass of the controller: m = 0.2 kg. The initial height of the controller (when Ryan lets…

Q: The mass of a baseball is 0.165 lb. Determine its kinetic energy relative to home plate of a 88.74…

A:

Q: Consider a roller coaster that moves along the track shown in the figure below. Assume all friction…

A: Step 1: Step 2: Step 3: Step 4:

Q: A tennis ball weighs approximately 2 ounces on a postage scale. A student  practices his serve…

A: Introduction: Given problem is based on the basic kinematics. When body move with velocity it has…

Q: A 68.5-kg runner has a speed of 3.00 m/s at one instant during a long-distanče event. (a) What is…

A: (a) The kinetic energy of the runner is, KEi=12mv2=1268.5 kg3.00 m/s2=308.25 J=3.08×102 J

Q: Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0 km/h; (b) an 80.-kg

A: As requested I will do just Part- a Given that-Mass of automobile, m= 2000 kgSpeed of automobile,…

Q: Consider two small objects of masses m and 3m respectively, connected by a massless spring of force…

A:

Q: How many slices of bread did each climber have to eat to compensate for the increase of the…

A:

Q: A 69.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s.…

A: The objective of this question is to calculate the kinetic energy of the athlete at the point when…

Q: Shown below are two frictionless tracks with masses A and B getting ready to traverse the two…

A: Ans: For the frictionless surface the only force acting on the masses A nad B is gravitational…

Q: Imagine you have to choose between being struck by an arrow or a bowling ball, each with the same…

A: given data arrow has a mass of ~100 g travels 100 m/s. An average mass for a bowling ball is 7.25 kg…

Q: An athlete in the Olympic game covers a distance of 100m in 10s. His kinetic energy can be estimated…

A: Option d correct

Q: Jacob is riding his bike down a tall hill. At the top of the hill, he has 2800J of potential energy.…

A: Whether the total amount of energy at the top is equal to the total amount of energy at the bottom…

Q: If a 70 kg baseball player steals home by sliding into the plate with an initial speed of 10 m/s…

A: mass of player, m = 70 kg  initial speed, u = 10 m/s  final speed, v = 0 m/s

Q: two cars are driving down the road, car two has half the mass and is travelling 8 times faster then…

A: We know that ,  Kinetic energy = 1/2 ( mv2)         Where  m = mass of the body…

Q: A 55-kg girl is riding a 5 kg bike with 5 m/s on a ramp with 4 meters height and 8 meters length.…

A:

Q: Problem#1:A 11-g bullet has a speed of 26 km/s. a) What is its kinetic energy in joules?

A:

Q: Calculate the kinetic energy in Joule, of a car of mass 1300kg travelling at 50km/h.

A:

Q: Calculate the kinetic energy in Joule, of a car of mass 1300kg travelling at 50km/h.

A: We know that-Kinetic energy, KE=12mv2here, m is the mass of the objectv is the velocity of the…

Q: A 4000 kg roller coaster train full of riders approaches the loading dock at a speed of 12 m/s. It…

A:

Q: A skater (at rest)starts at top of a ramp at a height of 4m and moves to the bottom of the ramp…

A: Weight , W = 490 N Height , h = 4m

Q: It is generally a good idea to gain an understanding of the "size" of units. Consider the objects…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: A penny is taken from the ground floor to the top of the Empire State Building. Assume that the…

A: a) Penny's kinetic energy just before it hits the road: Use conservation of energy because…

Q: The first car has twice the mass of a second car, but only half as much kinetic energy. When both…

A: Given , mass of first car =  2×mass of 2nd car m1 = 2m2 Let the original velocities be v1 and v2…

Q: Releasing some frustration at the end of the semester, you throw your physics book (mass of 2.7 kg)…

A: Given Mass of book ( m ) =2.7kg Height of building ( h ) = 25m Initial velocity ( u ) = 6m/s

Q: (a)By what factor does the kinetic energy of a car increase when its speed doubles? triples? (b)…

A:

Q: Calculate the kinetic energy in Joule, of a car of mass 1400kg travelling at 90km/h.

A: Given, mass m=1400 kg velocity v=90 km/h

Q: 1)

A: Answer

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.