Tarzan crosses a gorge by swinging in an arc from a hanging vine. This is a process of  Choose the answer A) momentum conservation b) energy conservation c) both energy and momentum conservation d) neither energy nor momentum conservation

Q: A bullet of mass (20 g) is found to pass two points (30 m) apart in a time interval of (4 sec).…

A: Given Mass of bullet (m)=20 g=0.02 kgDistance between two point (D)=30 mTime taken (t)= 4s

Q: Consider an experiment where you drop a basketball and let it bounce until it stops.  What happened…

A: From the conservation of energy, we know that energy can not be created or destroyed. Here initially…

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: Can something have energy without having momentum? Explain. Can something have momentum without…

A: It is possible for an object at height, h to possess a potential energy, while its momentum will be…

Q: A diver leaps from a high platform, speeds up as she falls, and then slows to a stop in the water.…

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Q: If we know the total energy in a system is 140 J, and we know the Potential Energy is 100 J.  What…

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Q: The car's mass is 923 kg. The trampoline just keeps the car off the ground. Calculate the kinetic…

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

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Q: Two 4.0 g bullets are fired with speeds 40 m/s and 120 m/s, represectively.  What are their kinetic…

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Q: Calculate the kinetic energy of a 0.300 kg baseball thrown at a velocity of 34 m/s. 173 J 390 J 490…

A: Given data: Mass (m) = 0.300 kg Velocity (v) = 34 m/s Required: Kinetic energy (KE)

Q: A bullet is fired from the rifle. If the rifle recoils freely, then the kinetic energy of the rifle…

A: By conservation of momentum, MV = mv or V = mv/M Kinetic energy of the rifle is Kr = 1/2MV2 =…

Q: Olivia fires an arrow at a bird sitting 20m up in a tree. The arrow has a mass of 0.010 kg and…

A: Given height of the bird from the ground = 20m  mass of an arrow = m = 0.010 kg  initial bow speed =…

Q: Explain the energy transformation in a pole vault event?

A: The pole vault is a physically and technically demanding event that requires considerable ability in…

Q: 10. A 3.0 kg toy falls from a height of 1.0 m. What will the kinetic energy of the toy be just…

A: Law of conservation of energy: Total energy of an isolated system remain constant.  Here  P. E.…

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

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Q: You move a ball of mass m away from a sphere of mass M. Is positive work, negative work, or zero…

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Q: Which of the two has greater kinetic energy?

A: Given data, Two cars A and B of masses 200 g and 500 g respectively. It is having same speed. Which…

Q: What is the kinetic energy of a fastball thrown at 44.7 m/s (100 mph)? The mass of the ball is 150…

A: given that    v=44.7 m/s m=150g=0.150kg Kinetic energy=12mv2 put the value  Kinetic…

Q: At a carnival, you can try to ring a bell by striking a target with a 10.1-kg hammer. In response, a…

A: Since 24.8% of the hammer's kinetic energy goes into raising the gravitational potential energy of…

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

A: The objective of the question is to find the kinetic energy of the ball before it struck the…

Q: The kinetic Energy of the Football is 24 J What would happen to the kinetic energy of the ball in…

A: Given Initial mass = m = 3 kg Initial Kinetic energy = 24 J Speed = 4 m/s = constant Finally mass is…

Q: Shey leads South’s varsity softball team in hitting. In a game against New Greer Academy this past…

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Q: an empty freight car with a mass of 1000 kg rolls at 5 m/s along a level track collides with a…

A: Collisions are of two types , they are elastic and inelastic collisions . Elastic collisions are…

Q: A 0.425 kg basketball is thrown with a speed of 5.50 m/s. How much kinetic energy does it have?

A: It is given that,

Q: Which of the following statements about the "Conservation of Energy" is NOT true? A) The total…

A: Conservation of energy is one of the fundamental theorem in science which helps us to understand and…

Q: You are driving 2018 Honda Civic and are stuck behind 2018 Toyota Tundra. a) What is the increase in…

A: Known value: Mass of 2018 honda civic is m = 1247 kg Given: Initial speed is u = 5 m/s Final speed…

Q: n object with a mass of 6-kg has a velocity of v=(-i+4j) m/s.  What is the kinetic energy of the…

A: Given mass of an object m = 6 kg velocity of an object v→ = (-i +4j ) m/s To Find  Kinetic energy of…

Q: kinetic energies

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Q: oes every moving body posses both kinetic energy and momentum? Explain.

A: Answer Kinetic energy is the energy possessed by an object due to its motion. Momentum of a body is…

Q: 6: On Neil deGrasse Tyson's reboot of Cosmos, he stands at the edge of an auditorium stage holding a…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A 1-kg object and a 2-kg object have equal nonzero momenta. Which object has the larger kinetic…

A: The expression for kinetic energy is given by, K=P22m Here, P is the momentum and m is the mass of…

Q: a plate resting at a table falls and breaks into two pieces. the kinetic energy of one piece is four…

A: As the plate fall down under gravity so the velocity for both pieces remains same  Let the mass of…

Q: Write the value of the kinetic energy of a higher case. A 12 kg-dog running at 8m/s A 24…

A: Kinetic energy of an object of mass(m) is            K.E= (1/2) mv2  Joule Where, V= Velocity

Q: A 20 G bullet is fired from a gun at 1:25 m/s how much kinetic energy does it have

A: GivenMass of bullet is M=20gSpeed of bullet is V=125m/s