A 1 kg ball dropped from a height of 2 m rebounds to 1.5 m. Which of the following is true? a. Total energy is conserved b. momentum is conserved c. kinetic energy is conserved d. potential energy is conserved e. none of thes
Q: 5. A sled of mass M is sliding at speed v, on a frozen lake when it hits a patch of rough ice and…
A:
Q: A 2.2 kg rock is held 10 meters above the ground and dropped. Using your knowledge of CONSERVATION…
A: Mass of rock (M) = 2.2 kg Height of rock (H) = 10 m Acceleration due to gravity (g) = 10 m/s2
Q: An 80 kg object is dropped from rest from a height of 25 meters above the ground. Use the concept…
A:
Q: A 1500-Kg sports car traveling at the speed of 8.00 m/s collides into the rear end of a 2500-Kg SUV…
A: a. According to the conservation of linear momentum,
Q: Tasha and Mike push on a car that has stalled, trying unsuccessfully to get it to move. Tasha pushes…
A: The work done by a force is equal to the force times the displacement occurred. Since, they both…
Q: A car of mass 1,000 kg moves with a speed of 5.00 m/s. If the car triples its speed to 15.0 m/s then…
A:
Q: 3. Consider a system having a mass of 1kg whose velocity increases from 15 m/s to 30m/s while its…
A:
Q: In which of the following situations are you doing work on an object ? A. holding a backpack over…
A:
Q: A 1500-Kg sports car traveling at the speed of 8.00 m/s collides into the rear end of a 2500-Kg SUV…
A: a) From conservation of momentum, the final velocity after collision is, b) The total kinetic…
Q: 1. Why does defining kinetic energy make calculations easier? 2. You drop a ball from the top of…
A: If an object has mass 'm' and velocity 'v' then the kinetic energy of the object can be found using…
Q: When a box slides across a floor and comes to rest, what happens to the energy of its motion? a. it…
A: The correct answer is **b. it is converted into heat**.When a box slides across a floor and comes to…
Q: the height of the Iguazu Falls is 82 m. A log of wood with mass 1350 kg moves at 7ms -1 in the water…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: The work down in accelerating a body along a frictionless horizontal surface equals the body's…
A: Given data: Body accelerate on the horizontal surface Surface is frictionless Required: Work done
Q: potential energy
A: Since you have asked multiple question, we will solve the first question for you. If youwant any…
Q: A crate slides down a ramp with friction in an open system. Which of the following statements must…
A:
Q: example of a system having both kinetic and potential energy would be: a. a book resting on a table…
A: A body in motion possess kinetic energy. When a body is at a particular height from ground than the…
Q: 5. What is kinetic energy? Select one: a. stored energy b. energy of friction c. energy of motion d.…
A: Kinetic energy: It is the energy possessed by the object due to its motion. When the object having…
Q: According to the Law of Conservation of Energy, energy can never be destroyed, but merely…
A: Mass of object = 1 kg Distance to which object is lifted upwards = 5 m Force applied in upward…
Q: The work that a force does by acting on an object is equal to what? a.) the product of momentum and…
A: When an object is moved by the application of a force on it, then, work is said to be done on the…
Q: 1. Describe the energy transformations that occur when you climb to the top of a stairway.
A: To discuss the energy transformations that occur when climb to the top of a stairway.
Q: If the speed of a particle is doubled, what happens to its kinetic energy? a. It will be half. b.…
A: Energy possessed by an object by virtue of its motion is called kinetic energy. Consider a body of…
Q: Positive work W done on a system means O a. Energy is transferred out of the system b. Energy can…
A: Introduction: A thermodynamic system is a matter or object that is confined in space by walls, which…
Q: A book is found to be sitting at the top of a book shelf with a height of 2.5 meters. If the book is…
A: Let the mass of the book = M Initial height = 2.5 m New position of book = 1 m lower than its…
Q: An object with mass m and a velocity v. What happens to Kinetic Energy when velocity is doubled? a.…
A:
Q: The newton is a unit of Select one: a. motion. b. power. C. energy. d. force. O O O O
A: The newton is the International System of Units derived unit of force N= kg⋅m⋅s−2
Q: Identify each situation as: WORK IS DONE or WORK IS NOT DONE a.A teacher applies force to…
A: Whether the work is done on the object or not depends on the force applied and displacement of the…
A 1 kg ball dropped from a height of 2 m rebounds to 1.5 m. Which of the following is true?
a. Total energy is conserved
b. momentum is conserved
c. kinetic energy is conserved
d. potential energy is conserved
e. none of these
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- There are 2 cars. Assuming the first car has a mass of 1000 Kg, which has greater kinetic energy? a. The first car traveling at 30 m/s b. a second car of half the mass traveling at 60 m/s. c. both have the same kinetic energy d. need more information1.) A 15 kg mass is dropped from rest a distance of 18 m above the ground. Make certain you show all your work: a. Draw a picture. b. Indicate on your drawing where KE = 0 and where PE = 0 c. Using Conservation of Energy determine the final speed of the object just before it strikes the ground. d. Next, again showing all your work, use 1-dimensional Kinematics to solve the same problem. e. Which method, in your opinion is easier?2. Consider the concepts of kinetic energy (KE) and gravitational potential energy (GPE) as you complete these questions. A ball is held 1.4 meters above the floor. Use the terms KE of GPE as your answers. A. When the ball is held motionless above the floor, the ball possesses only B. If the ball is dropped, its energy decreases as it falls. C. If the ball is dropped, its energy increases as it falls. D. In fact, in the absence of air resistance, the amount of impact with the floor. energy. energy when the ball is held motionless above the floor equals the amount of energy at
- A certain force does −7 J of work in moving an object located at position A to position B. The same force then does −7 J of work in moving it back from position B to position A. No other forces did work. Was mechanical energy conserved? Was energy conserved? a. Total energy was conserved but not mechanical energy. b. Mechanical energy was conserved but not total energy. c. Both mechanical energy and total energy were conserved d. Neither mechanical energy nor total energy was conserved.The unit of work, joule, is dimensionally the same as: a. Newton‑meter b. Newton/kilogram. c. kg•m2/s2 d. a and c e. a and b f. b and cQUESTION 5 Which of the following statements about energy is not true? The mechanical energy of a physical system is constant when the forces acting on the system are all conservative forces. a. O b. According to the work-energy theorem, the forces that contribute to the net work include all the conservative and nonconservative forces. c. The total energy of the universe is always conserved. O d. Energy can change form, but it cannot be created or destroyed. O e. Mechanical energy is always conserved ONH
- A car is traveling along a straight, level road when it slows down from 28 km/h to 14 km/h. The car's kinetic energy Group of answer choices a. does not change. b. decreases 2 times. c. increases 4 times. d. decreases 4 times.A sprinter is practicing exiting the starting blocks with a large amount of power. What can the sprinter do to increase their power? A. Perform more work in the same amount of time B. Apply the same amount of work in a longer amount of time C. Perform the same amount of work in a longer amount of time7. John has 200 Joules of potential energy when he is standing on a diving board. a. Find his mechanical energy. b. John jumps off of the diving board. What is his potential energy when he is halfway to the water? C. What is his mechanical energy when he lands in the water?