33. Name the appropriate unit for each quantity. iii) Momentum iv) Mechanical Energy
Q: If a 0.50 kg ball is moving at a speed of 12 m/s what is the kinetic energy of the ball? Equation is…
A:
Q: 7. An elevator cab that weighs 27.8 kN moves upward. What is the tension in the cable if the cab's…
A: weight of elevator cab (w) = 27.8 kN
Q: Defined as the change in an object's Kinetic Energy a. Mechanical Energy b. Law of Conservation of…
A: According to the law of conservation of energy, energy can neither be created nor destroyed. It can…
Q: The statement that change in kinetic energy of a system is equal to the work done on the system by…
A: Concept used: Work done on a system is equal to difference of final and initial kinetic energy of…
Q: 1. Determine from the expression for kinetic energy (KE = ½ mv2) the combination of units,…
A: Given that, Kinetic energy (KE = ½ mv²) Here m is the mass And v is the velocity We know that the…
Q: Match each unit with the physics concept it represents. force а. Newtons work b. watt mechanical…
A: Match each unit with the physical concept
Q: The rate at which work is done is A. power. B. momentum. C. potential energy. D.…
A:
Q: the KE of a 1 000 kg . Calculate car travelling at 60 km/h.
A: Given data: Mass (m) = 1000 kg Velocity (v) = 60 km/h Required: Kinetic Energy (KE)
Q: 8. Describe an object that has a lot of kinetic energy, but not much speed.
A: The kinetic energy of an object is given as, K=12mv2 Here, m denotes the mass and v denotes the…
Q: A 1 kg ball dropped from a height of 2 m rebounds to 1.5 m. Which of the following is true? a.…
A: We are given mass of a ball. We are given height of the ball. We are given rebounding height also.…
Q: This quantity is defined mathematically as force times distance. Choose the correct letter only.…
A: Quantity mathematically defined as force times distance i.e., Quantity = Force x distance = F d…
Q: Give example of something we think of as work in everyday circumstances that is not work in the…
A: Scientifically work is defining as a product of force and the displacement in direction of force…
Q: Kinetic energy depends on A. Mass and volume B. Weight and height C. Velocity and weight D.…
A: We know that , Kinetic Energy (K.E) = (1/2)×mass×(velocity)2
Q: Write an expression for the kinetic energy of an object in a circular orbit. Write this in terms of…
A:
Q: What is Law of Conservation of Mechanical Energy?
A: As per the work-energy theorem, the work done by a force on a closed system can be given as, Here,…
Q: Choose all that applies to Kinetic energy. A. Never negative. B. Energy associated with…
A:
Q: Find the simplest unit of the Q = va/w , in which v is velocity, a is acceleration and w is work
A: We have to understand the basic here.
Q: 90. What happens to the kinetic energy of a moving object if the net work done is negative? * a. The…
A: Explanation: When negative work is done on a moving object, the direction of the force on the object…
Q: 91. What happens to the kinetic energy of a moving object if the net work done is zero? * O a. The…
A: Introduction: Work done is defined as the product of the force applied and the displacement.
Q: What is Law of Conservation of Mechanical Energy?
A: According to conservation of energy Total energy of isolated system remains constant.
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: Describe a situation where an object is in motion but no physical work is being accomplished.…
A: Consider the situation where a person carrying a suitcase on his head and walking. Now for an…
Q: A job is done slowly, and an identical job is done quickly. Both jobs require the same amount of…
A: Effect of job is same, but for creating effect time taken is different.
Q: An object with mass m and a velocity v. What happens to Kinetic Energy when velocity is doubled? a.…
A:
Q: 3.The Work-Energy Principle states that work is equal to the change in kinetic energy. What unit…
A:
Q: Which of the following statements correctly describes the relationship between an objects kinetic…
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: 17. The kinetic energy of an 1800-kg truck is 7.2 x 105 J. What is the speed of the truck? A) 25 m/s…
A:
Q: 89. What happens to the kinetic energy of a moving object if the net work done is positive?" a. The…
A: According to the Work-Energy theorem, the force required to move an object at some distance is equal…
Q: Which of the following statements are TRUE? A. Energy is a vector physical quantity. B. Energy is…
A: A. Energy is not a vector quantity, it is a scalar quantity : FALSE B. Energy is required to do work…
Q: True or false, Kinetic energy is the quantity that measures the amount of work that goes into the…
A: Let, the work-done be denoted as 'W' , initial kinetic energy of the object be denoted as 'Ki' ,…
Q: Resultant work on a translating body is equal to _____. a. Change in potential energy b.…
A: Given Body is in motion We have to choose the correct option from given options
Q: The unit of work, joule, is dimensionally the same as: a. Newton‑meter b. Newton/kilogram.…
A: The unit of work, Joule, is defined as the product of force and displacement, where both force and…
Q: Which property of an object changes when it is raised to a height of 5m? a. mass b. weight c.…
A: The formula for Potential Energy ( U) = m * g * h where m is the mass of the object, g is the…
Q: B. Energy is always required to do work. C. Total mechanical energy can never be zero. D. When law…
A: A. is false .because Energy is a scalar quantity as it has only magnitude. B is true Energy os…
Q: 6. Name the source of energy in a hydel power station and a thermal power station. 7. What is meant…
A: "Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…
Step by step
Solved in 2 steps
