Shown below are eight different force diagrams (labeled I to VIII). The full arrows touching the objects represent force arrows and the half-arrows above the objects represent speed arrows. II III IV VI VII VIII In which of the situations represented by these force diagrams would the speed of the object be changing?

Q: An object is traveling such that it has a momentum of magnitude 29.6 kg - m/s and a kinetic energy o...

A: Given, mass, m =? momentum, p = 29.6 kg.m/s=mv    [1] kinetic energy, K = 303 J = 12mv2     [2] Spee...

Q: A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball hi...

A: Given,

Q: A lot of people are giving me mixed answers on this. Please show and explain how you got the answer.

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Q: Calculate the emfx of a dry cell for which a potentiometer is balanced when Rx = 1.200 Ω , while an ...

A:  Rx = 1.200 Ω Es = 1.600 V Rs = 1.247 Ω 

Q: Camplng eipneut weighing 6000N is polled ro n lale t means of a horiatal 2ope The coefficient of kin...

A: The mass of the equipment can be written as m=Wgm=6000 N9.8 m/s2m=612.2 kg                          ...

Q: A stone is thrown horizontally from a cliff 30m high with an initial speed of 20m/s.How far from the...

A: Consider that, the vertical initial velocity is zero,

Q: A load of 10 kg is pulled along a horizontal track by a force at 30° to, and about the track. If the...

A: Given, Mass, M= 10 kg, angle, θ=300, and coefficient of friction, μ=0.2.

Q: A block is being pulled up an inclined plane by a force with magnitude F=45.0 N as shown In the figu...

A:

Q: Riddle: I can be converted from one form to another and transported from one place to another, yet y...

A: Conservation law of energy states that total energy of an isolated system remains constant OR energy...

Q: Supergirl pushes with a force of 24,000N on a 5000kg truck carrying stolen biological weapons to hol...

A: F = 24000 N m = 5000 kg θ = 35 degree   

Q: A rock is dropped from 20 feet above the surface of the Earth. Which of the following is true? a. It...

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Q: I submitted this question earlier and the second answer was incorrect.

A: Formula of change in length of material with respect to time: ∆L=LαTh-Tc                            ...

Q: Ticker Tape Diagram Case A Case B 2. Greatest velocity change? Greatest acceleration? Greatest momen...

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Q: The meterstick shown is 100 cm long. It is free to pivot around its center of gravity (CG), which is...

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Q: Can i get help with this question

A: Free body diagram of the above diagram-  According to force balance-  N1+N2=48 kg×10ms2N1+N2=480 N ...

Q: A sample of compound AB decomposes to 48 g of A and 12 g of B.  Another sample of the same compound ...

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Q: Looking at the speed-time graphs of the four aliens, who shows the greatest rate of speeding up?

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Q: During an experiment, a block of wood with a mass of 180 g is placed on an incline plane. When the p...

A:

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Q: 16. A 0.50-kg object moves on a horizontal frictionless circular track with a radius of 2.5 m. An ex...

A:

Q: A Guide Questions: What happens to the paper as you blow it in front of your mouth? Explain the move...

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Q: A thin 105 g disk with a diameter of 7.00 cm rotates about an axis through its center with 0.615 J o...

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Q: The sign at Newton’s Deli has a mass of 45.1 kg. It is supported by a boom. The angle between the su...

A: A. Tension on the support cable is, TsinA=mgT=mgsinA=45.1 kg9.8 m/s2sin31o=858.15 N≈858 N

Q: A thin string 2.50 m in length is stretched with a tension of 90.0 N between two supports. When the ...

A: Given data: Length of string is, L=2.50 m. Magnitude of tension between two supports is, T=90 N. Amp...

Q: A vertical, 1.20 m length of 18 gauge (diameter of 1.024 mm) copper wire has a 100.0 N ball hanging ...

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A:

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Q: Calculate the work done by the force below if F0= 150 N. In a sentence or two, explain how did you c...

A: The area under force distance graph is equal to the work done by the force,

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A: Calculating the coefficient of friction by FBD concept and applying summation of forces rule.  

Q: What is the relative velocity of two spaceships if one fires a missile at the other at 0.750c and th...

A: The expression for find relative velocity of both ships is v=u-u'uu'c2-1

Q: AM stations have kHz frequencies. What is the wavelength of local AM station with an assigned freque...

A: The frequency of the AM station is, f=98.2 kHz=98.2×103 Hz

Q: Help

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!