hor stands on the top of stark tower 425 m adn fights his brother loki using mjolnir his hammer. if his hammer has a mass equal to 300 billion elephants  cal it 4.5*10^15 kg what i the gaviation potential energy in J of jjolnir relative to the ground? use scientific notation to enter you answer. B. Loki tricks thor into dropping Mjolnir off stark tower. when the hammer has fallen one third of the way down the tower what is its kinetic energy in J? Hint you could find the speed then calculate the kinetic energy but there's an easier way...

Q: What is the object's velocity when its potential energy is 2/3E?

A: The total Mechanical Energy,

Q: 6. A proton is being accelerated at 3.6x1015 m/s? in a linear accelerator. If the proton has an…

A:

Q: When the mass reaches point x = +A, its potential energy is?

A: The potential energy is maximum at extreme position and zero at the mean position.

Q: Problem A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the…

A: The kinetic energy = 1/2 mv2 Work = KEf - KEi

Q: 2. What is the moving kinetie energy of a 1500kg car moving at 25m/s 3. What is the kinetie energy…

A: If an object has mass 'm' and speed 'v' then the kinetic energy of the object is E=12mv2

Q: A projectile hits the ground at an angle of 30 degrees below the horizontal with an energy of 113715…

A:

Q: A 300 gg bird flying along at 5.7 m/sm/s sees a 10 gg insect heading straight toward it with a speed…

A:

Q: Jeric, a professional rooftop futbol player, kicked a 4.0 kg ball off a rooftop that is 50 m off the…

A: Motion perpendicular are independent of each other. Motion can be uniform or accelerated. The…

Q: Problem A moving electron has a Kinetic Energy Kg. After a net amount of work is done on it, the…

A:

Q: Problem A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the…

A:

Q: A ball of mass 200 g is moving with a speed of 10 m/s. What is its kinetic energy in joules?

A: The kinetic energy if the ball is given by the equation

Q: Mass (m): Mechanical Energy (ME) = 1,000,000 J PE = 998,791 J h: v = 1.5 m/s KE: v: 55m v = 31.28…

A: At stage 1: PE = 998791 KE = Total mechanical energy - PE  KE = 1209 J KE = 12mv2 = 1209 m=1074.67…

Q: What initial velocity must be given to a 5-kg mass if it is to rise to a height of 10 m? What is the…

A: Mass, m = 5 kg Height, h = 10 m Acceleration due to gravity, g = 9.81 m/s2   From work energy…

Q: (I) (a) If the kinetic energy of a particle is tripled, by whatfactor has its speed increased? (b)…

A:

Q: A bird (m=250g) is flying through the sky at 10m/s, if the birds total energy is 1000J, what is his…

A: Given data:  Mass (m) = 250 g = 0.250 kg Velocity (v) = 10 m/s Total Energy (TE) = 1000 J  Required:…

Q: a shot putter hrows a 6kg shot with a final velocity of 7m/s. What is the kinectic energy of the…

A: Given that,  A shot putter throws a 6 kg shot with a final velocity of 7 m/s Mass  = 6 kg Velocity =…

Q: passes through the point x 0, y 4.4 m. (a) What is the kinetic energy of the particle as it passes…

A:

Q: Ten days after it was launched toward Mars in December 1998, the Mars Climate Orbiter spacecraft…

A: mass of orbiter (m) = 629 kg distance (d) = 2.89×106 km speed (u) = 1.20×104 kmhr= 12000 ×518 ms=…

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

A:

Q: Problem A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the…

A:

Q: A1400 kg car can travel at a velocity of 15m/s. What is its kinectic energy?

A: Mass of the car, m=1400 kg   The velocity of the car, v=15 m/s

Q: You are out on a date, eating dinner in a restaurant that has several television screens. Most of…

A: The rocket launched from earth is supposed to reach mars. In order to carry out this mission…

Q: Calculate the kinetic energy of a 0.300 kg baseball thrown at a velocity of 44 m/s in joules.…

A:

Q: Albert Einstein is pondering how to write his (soonto-be-famous) equation. He knows that energy E is…

A: To determine,The correct form of the equation of Energy by Elbert…

Q: A projectile hits the ground at an angle of 30 degrees below the horizontal with an energy of 113715…

A: solution : Given: Angle θ=300                       Energy E=113715 J                      Mass…

Q: find the potential energy of a particle moving around in F(r,θ,z) = -kr^3 ˆr

A: CONCEPT: We know, The force at any position can be obtained by the taking derivative of the…

Q: Kinetic Energy is: KE = ¬mv², where KE = kinetic energy, m =mass, and v = velocity. What is the…

A:

Q: A 60.0 - kg athlete leaps straight up into the air from atrampoline with an initial speed of 9.0…

A: (a)The athlete interacts with the trampoline. She pushes the elastic material down and gets launched…

Q: For the gravitational field of a large massive object, such as the sun, what is the gravitational…

A: Gravitational potential energy Gravitational potential energy of a object has in relation to another…

Q: An object is dropped from a height of 12m. At what height will its kinetic energy and its potential…

A:

Q: Don't understand how he got 426.5 for answer

A: Given dataMass of ping-pong ball m1=1.65 g…

Q: Since the heavy particle remains fixed, before and after the motion of the lighter particle, it does…

A: From the energy conservation, we conclude,…

Q: A football throws a ball from across the field, this causes the ball to have a change of mass of 1.0…

A: Given data: Change of mass, ∆m=1.0×10-15kg

Q: Alissa dropped a ball from a height of 2000 mm. Find out (a) how long it will take to hit the ground…

A:

Q: From the top of a cliff 80 meters high, a ball of mass 0.4 kilogram is launched horizontally with a…

A: Force brings about motion and changes in it. This force produce acceleration and hence the changes…

Q: Incorrect. Did you remember to square the velocity? How much energy, in joules, does a 46.8 kg…

A: Part-I: Given: The mass of the object is 46.8 kg. The speed of the object is 48.4 m/s.

Q: the energy to increase the speed of a certain car from 18 m/s to 24 m/s is 190 kJ (a) What is the…

A: Given: Initial speed of car (u) = 18 m/s. Final speed of car (v) = 24 m/s. Energy given (E) = 190…

Q: A 7.5 kg moving in space has 438 j of kinetic energy how fast is it moving?

A: Given: m=7.5kg,  Kinetic energy, K = 438J

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.