focal length of the lens

Q: Suppose you lift a 25 kg box by a height of 1.0 m. How much work do you do in lifting the box?…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: Suppose you are using a see-saw with your friend. You have a weight of 600 N and your friend has a…

A:

Q: What net force, in Newtons, is needed to do 1,847 J of work over a distance of 144 meters?   Round…

A: Given thatwork, W=1847 Jdistance, d=144 mas work, W=Fdwhere F is force

Q: Calculate q when a system does 58.25 J of work and its energy decreases by 65.46 J.   Round your…

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Q: Calculate q when a system does 45.53 J of work and its energy decreases by 77.71 J

A: Given data: The work done by the system, W=45.53 J. The change in internal energy of the system,…

Q: The 85 kg man pushes against a stationary wall with a force of 250 N for 30 seconds. How much work…

A: Work is basically the dot product between the force and the displacement of the object. The formula…

Q: 4. In the figure shown, determine the work done by the gravitational force on a 5.50-kg particle as…

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Q: Can you please answer number 3 and show all of the work and the steps to the solutions

A: Given data The vector A is given as A = -3i – 9j. The vector B is given as B = -6i + 5j The vector C…

Q: An object having the capability to do work is said to possess: A) Inertia B) Force C) Pressure D)…

A: An object having capability to do work is said to possess

Q: A force (3x'i • 2y'i) N acts on an object as the object moves in the x-direction from the origin to…

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Q: I like to know how to solve questions 1 and two because I did the math problem but I feel like I…

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Q: Zero, a hypothetical planet, has a mass of 5.3 x 1023 kg, a radius of 2.8 x 106 m, and no…

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Q: 3. A 36-kg girl walks to the top of stairs that are 2.0-m high. How much gravitational potential…

A: Given:  Mass(m) = 36 kg  Height (h) = 2m

Q: DIRECTION: Classify the following as a to potential energy or kinetic energy. Write K for kinetic…

A: The energy due to position is the potential energy on the object. The energy due to motion is known…

Q: Suppose you are using a see-saw with your friend. You have a weight of 500 N and your friend has a…

A: Given data: The weight of man is W=500 N. The weight of friend is W'=600 N. The distance of man from…

Q: 4. I could better understand energy transfer if I ... Answer:

A: The capacity of doing work is called the energy of the body. The amount of work, that a body can do…

Q: 1. If you pushed a 20 kg box across the floor for a distance of 60 m with a force of 15 N how much…

A: #1 Given data: The mass of box is m=20 kg. The distance traveled by the box is d=60 m. The force…

Q: There are many levers in the human but the most common one is 3rd 2nd 1st

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Q: Calculate q when a system does 46.33 J of work and its energy decreases by 73.53 J.   Round your…

A: Given data The amount of work is given as W = 46.33 J. The amount of energy decreased is given as…

Q: 2. Are you doing work in these situations? Also a question from your PHYS1111 class.

A: Work done is force that cause a body to move. It is the product of force and displacement.

Q: m 24 cm to 30 cm? (Round your answer to two decimal places.) J =

A: GivenNatural length of spring, Li=24 cm=0.24 mForce required, F=28 NAfter Stretching length of…

Q: Which example demonstrates only potential energy? O a fish swimming in a lake O an ox taking a nap…

A: The energy possessed by an object by virtue of its position is called potential energy. The energy…

Q: How far apart should 2 protons be to experience the same force as the weight of a .1kg apple at a…

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Q: A. Suppose you lift a 15 kg box by a height of 1.0 m. How much work do you do in lifting the box?…

A: (a) The work done in lifting the box is

Q: uilding. One of the movers is pushing on the crate with a force of constant magnitude F₁ arallel…

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Q: Find WBA, the work that the force F performs on the particle as it moves from point B to point A…

A: Part A: Work done by a constant force acting at an angle φ and that has the magnitude F with respect…

Q: 25. An object of mass 3.00 kg is subject to a force Fx that varies with position as in the Figure.…

A: Given, Mass of the object =3.00 kg The graph of Fx vs x is provided. We have to find the work done…

Q: Computation. An object experiences a force which varies with position as F(x) = ax + 3x³ where a =…

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Q: Define the term potential energy of a body. Name its two forms and give one example of each.

A: Elastic Potential Energy: - Anything that can act like a spring or a rubber band can have elastic…

Q: 3. Calculate the gravitational potential energy of a 2.0 kg block that is 9.0 meters above the…

A: 3)   m = 2 kg  ; h = 9m gravitational potential energy  = mgh                     = 2 * 9.8 * 9 =…

Q: If the interest rate is 10%, Julia could borrow up to $91. Select one: O True

A: Correct answer is true

Q: 9- A student pushes a chair in her dorm with a horizontal force of 70 N. The friction force between…

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Q: Show how a change in ⁰F is equal to a change in R.

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Q: Problem 8 ( For a round-trip path, AV is always zero Select one: O True O False

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Q: pun un 10 A 2,500-kilogram roller coaster car travels along the track from Point 1 to Point 6 as…

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Q: Given that the PE at A is 20 kJ and KE at A is 5.0 kJ. What is the KE at B if the height at B is 2.0…

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Q: a hydraulic catapult propels the car to the top of the ride, at a height of 450 ft. If the car and…

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Q: 21. If more than one answer is correct, please pick all correct answers. Thanks.

A: Given: The child is moving across the monkey bridge.

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.