if you push a box across the floor its "physics works" but if you push on the wall its not. which of the following choices best explains why?

Q: A truck's wheel (r = 23 cm) turning at 111 rev/min increases its velocity to 335 rev/min within 14.4…

A: Given data :- radius r = 23 cm = 0.23 m initial angular velocity ω0 = 111 rev/min                 or…

Q: A nice blue green/teal color is at a wavelength of 490 nm. What is the exact frequency of this…

A: Given Wavelength of the light is given as λ=490 nm=490×10-9 m     We have to find the frequency of…

Q: Solve the following problem and provide an explicit solution: 1. Consider the charges ?1=2.5 ?? and…

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

Q: Concern an electric dipole in an electric field. Clinical studies suggest that an oscillating…

A: Force on positive side is in the direction of field while force on negative side will be opposite to…

Q: H.W 5: Find the power delivered to the element in Example 1.5 at t= 5 ms if the current remains the…

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Q: Two resistors (2Ω, and 6Ω) are connected in parallel across a 9-Volts battery, what is the current…

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Q: A body cell of 1.0 x 10-5-m radius absorbs 3.2 x 10-14 J of X-ray radiation. Assume the absorbed…

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Q: A total resistance of 3.09 Q is to be produced by connecting an unknown resistance to a 12.22 Q…

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Q: A 1.00-mm-radius, cylindrical copper wire carries a current of 8.00 A. If each copper atom in the…

A: The average velocity obtained by charged particles, such as electrons, in a material owing to an…

Q: 9. Interpret the circuit below to determine total resistance. + V3 9 V R6 R1 R2 R5 100 Q 100 2 10 22…

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Q: Hot objects are lighter because their particles are far from each other. True or false

A: Please see the answer below.

Q: 1. A bumblebee was released and started to travel along a straight horizontal line. The directed…

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Q: Direction: Draw a schematic diagram of the following:

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Q: You are moving at 120 km/h toward a stationary train. The train blows its 400 Hz whistle. Take the…

A: You are moving at 120 km/h toward a stationary train. The train blows its 400 Hz whistle. Take the…

Q: A clear plastic paperweight with an unknown index of refraction rests on your desk as shown in the…

A: Given:Angle of incidence of ray=68o

Q: In the figure, two circular arcs have radii a = 13.1 cm and b = 10.6 cm, subtend angle = 70.0°,…

A:

Q: If Star A's temperature is 5000 K and Star B's wavelength of peak emission is 5/7 as long as that of…

A: GivenTA = 5000 KλB =57λA

Q: In the figure R₁ = 6.770, R₂ = 20.30, and the ideal battery has emf ε = 10.2 V. (a) What is the…

A: R1 = 6.77 ohm R2 = 20.3 ohm E = 10.2 V t = 2.06 min = 123.6 sec

Q: Determine the maximum angle of incidence for which the light ray on the end of the light pipe in the…

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Q: Essay Type. What factor indicates if an image is enlarge or diminished?

A: Images formed during reflection by mirrors and refraction through lenses can be enlarged or…

Q: A football player with a mass of 124kg is moving from the right to the left at -5.7 meters per…

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Q: IRZ E₂ R2 Σ 3.00 ΚΩ 2.00 ΕΩ a www R₁ Ⓡ the current (in mA) in each resistor shown in the figure…

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Q: Which of the following must be true for thin lenses (both converging and diverging lens)? (Hint:…

A: Convex lens is known as converging lens and concave lens is known as diverging lens.

Q: ype. Introduction on Electrostatics and its theorie

A: Introduction on Electrostatics and its theories

Q: Find the centroid of the region bounded by the set of curves

A: Area Bounded by the Curves:When area bounded by curve and line has to be identified, then the…

Q: In the figure, a particle moves along a circle in a region of uniform magnetic field of magnitude B…

A:

Q: what quantity causes a change in angular momentum

A: Torque can be define as the rate of change of angular momentum, it is similar to force.

Q: Two loudspeakers, placed on opposite walls of a 10m long room, emit pure sine waves at f= 170 Hz…

A: Let at a distance x from center waves cancel out (destructive).  Now, path difference for 1st…

Q: A tire is filled to a gauge pressure of 2 atm at 27°C. After a drive, the temperature within the…

A: Given  Initial pressure  P1 = 2 atm  Initial Temperature  T1 = 27 ° C  = (27 + 273 ) K  = 309 K…

Q: The lens of a camera has a thin film coating designed to enhance the ability of the lens to absorb…

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Q: 7. A current of 2.0 A exists in a conductor whose terminals are connected across a potential…

A: *** The Three questions (7,8 & 9) are not connected to each other, so according to the bartleby…

Q: An Athlete pulls a 20 kilograms crate along Lane A of the storage house. Lane A is a 15m  aisle.…

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Q: Charged particle B in (Figure 1) has four times the charge of particle A. Figure 1 of 1 A + BH…

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Q: 1)Two loudspeakers, placed on opposite walls of a 10m long room, emit pure sine waves at f= 170 Hz…

A:

Q: Frank can see fine at long distances but now needs to hold a restaurant menu at 50.0 cm from his…

A: u = -(50-1.5) = -48.5 cm  v = -(25-1.5) = -23.5 cm

Q: 5. A circuit has an electrical power of 30W and a total resistance of 90. What is the circuit's…

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Q: When gamma is 1.88, what is beta

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Q: A projectile is launched at an angle of 45° with a velocity of 250 m/s. If air resistance is…

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Q: In a hydrogen atom an electron is orbiting a proton. There are two forces between the electron and…

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Q: How does resistance change if the length of the wire is increase? a. no change b. decreased c.…

A: Explanation-  Resistance is the property of material, which opposes the flow of current passes…

Q: A ball is thrown so that it just clears a 10ft fence 50ft away. If the ball left the hand S ft.…

A: Let initial velocity is v ft/s In x direction by, sx = vx×t  50 = vCos60° × t  vt = 100  t = 100/v

Q: Two particles are fixed to an x axis: particle 1 of charge q₁ = 2.10 × 108 C at x = 22.0 cm and…

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Q: What is the focal length of the lens in your eye when you can focus on an object at your near point?…

A: u = -21 cm  v = -(25-2) = -23 cm   Since near point is 25 cm from eye

Q: For a convex mirror, when the object is 24.5 cm in front of the mirror the image is 14.8 cm behind…

A: Case 1 : Object distance (d) = 24.5 cmimage distance (i) = - 14.8 cm

Q: Which of the following is false about light?

A: Energy = E = hf here f = frequency = Cλ Energy = E =h Cλ

Q: 5. There exists a uniform rectangular plate of mass m and length L and width W (this dimension is…

A: Newton's second law states that, F=m×a where m is the mass of the object, and a is the acceleration…

Q: 24.0 V 12.0 V + I Μ R₁ 4.00 Ω 13 3.00 Ω 5.00 Ω Μ R₂

A:

Q: 3. When it comes to microscope magnification, does a shorter focal length for either the eyepiece or…

A: Answer:-  The objective and the eyepiece of a compound microscope must have short focal length so as…

Q: A clown at a birthday party has brought along a helium cylinder, with which he intends to fill…

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Q: consider two pipes of the same length one is open and the other is closed on one end. if the…

A: Given Information:- Fundamental frequency of the open pipe is f0=350 Hz Required:- Fundamental…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: