Bob and Sue each develop their own hypothesis to explain why balls bounce. An experiment dropping two identical basketballs shows both hypotheses work equally well. Which of the choices below are scientifically valid steps to help determine which hypothesis is correct? Choose all that apply. A Find out which person is more educated and declare their hypothesis to be correct BTest one hypothesis and then the other because you can't test two hypotheses at the same time Try an experiment using two baseballs D Declare Bob's hypothesis to be correct because men are always correct E Ask a group of at least 5 physicists which hypothesis they agree with and declare the most agreed upon hypothesis to be correct

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A: Initial temperature=300C Final temperature=600C

Q: Find the equivalent capacitance for (a), (b) and (c) circuits) C₂ C₂ C₁ HH C₁ (c) (b) 15 Vo=10 V

A:

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Q: radioactive

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Q: What is a photon?  a A positive particle  b A quantum of light  c A wave of energy  d A negative…

A: It is asked in the question that what is the photon

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Q: A 350 g block is dropped onto a relaxed vertical spring that has a spring constant of k= 4.6 N/cm…

A: a) Write the expression for the gravitational force and substitute the corresponding values.…

Q: You push your 3.45 kg physics book 7.89 m along a horizontal tabletop with a horizontal push of 5.67…

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Q: 3. Two long parallel vertical wires 20 cm apart are carrying currents of 20 A and 25 A in the…

A: Two parallel long current carrying wire:  Take, 'into the page' as negative direction and 'out of…

Q: In one type of fusion reaction a proton fuses with a neutron to form a deuterium nucleus: H + n ->…

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Q: The spool has a weight of 15 lb and a radius of gyration ko -0.65 ft. A force of 40 lb is applied to…

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Q: A fisherman's scale stretches 4.0 cm when a 3.0-kg fish hangs from it. Part A What is the spring…

A: Mass, m=3.0 kg Displacement, x=4.0 cm =0.04 m

Q: Point charges are placed at (diagonally) opposite corners of a rectangle. The charges are of…

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Q: Also answer d ) For state 1 evaluate the specific volume assuming the steam behaves as an ideal gas…

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Q: A block slides off a horizontal tabletop 1.2 m high with a velocity of 4 m/s. Find

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Q: 0.9 kg box is sliding across the floor and the force of friction is slowing it down at a rate of -…

A: m=0.9 Kg (mass of the box)a=-0.6m/s2 (deceleration)

Q: Describe a mechanical wave

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Q: The figures shows a overhead view (they are lying on the ground without any friction) long uniform…

A: Solution:- Writing the given values of the question Mass of the rod M=0.600 kgSpring constant k=1850…

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Q: Define simple harmonic motion.

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Q: The wavelength of the yellow spectral emission line of sodium is 590 nm. How much kinetic energy…

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Q: The diagram shows a one-dimensional line charge. The top half is some distance L from the axis and…

A: λ=20μC/m L=3.3 m

Q: Four point charges are placed as shown below. Find the net field at the test point P, located a…

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Q: A square loop of current is in a magnetic field. a. If the field is uniform, is there always a net…

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Q: 10. Radium is a radioactive element whose nucleus emits an a particle (a helium nucleus) with a…

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Q: (25) The position vector of an object of mass 0.50 kg subject to a constant force is given by r =…

A: The mass of the given object, m=0.50 kg The position vector, r→=(at2+bt)i^+(ct2+dt)j^+(et2+ft)k^ The…

Q: 4. A small underwater pool light is 1 m below the surface of a swimming pool. What is the radius of…

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Q: Near the end of a marathon race, the first two runners are separated by a distance of 45.0 m. The…

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Q: In the figure, a uniform plank, with a length L of 4.75 m and a weight of 630 N, rests on the ground…

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Q: The figure(Figure 1) shows the interference pattern on a screen 1.0 m behind an 630 line/mm…

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Q: Which of the following are part of the first postulate of Einstein's Special Theory of Relativity?…

A: The first postulate of Einstein's Special Theory of Relativity is: "The laws of physics are the same…

Q: A ball is projected with an initial upward velocity component of 25 m/s and a horizontal velocity…

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Q: Water flows through a horizontal cylindrical pipe of varying cross section. The velocity is 5.1 m/s…

A: Given: The velocity at point 1: v1=5.1 m/s Pipe diameter at point 1: d1=1.4 cm Diameter at point 2:…

Q: A film camera has a lens with a focal length of 55 mm. The design specifies it should be able to…

A: To find the smallest distance from the lens to the film in this camera, we need to use the lens…

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Q: What angle would the need to use from the central fringe to see the third order fringe of a green…

A: Wavelength of the Light is λ = 570 nm = 5.70 x 10^-7 m  The distance between the double slits is d =…

Q: A flywheel with a radius of 0.25 m starts from rest and accelerates with a constant angular…

A: Radius (r) = 0.25 m Initial angular velocity = 0 radsangular acceleration (α) = 1.5 rads2Angular…

Q: A block of mass 1.63 kg is placed on a frictionless floor and initially pushed northward, whereupon…

A: Solution: Given: m1 = mass of block 1 = 1.63 kg m2 = mass of block 2 = 4.26 kg u1 = initial velocity…

Q: One 500mL glass of coke is 10°C when 0°C ice is added to the glass. After enough time, all the ice…

A: The volume of the water, Vw=500 mL The initial temperature of coke of water, Tiw=10°C The initial…

Q: Near the end of a marathon race, the first two runners are separated by a distance of 45.0 m. The…

A: Velocity of first runner, v1=3.45 m/s Velocity of second runner, v2=4.25 m/s Distance between two…

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A:

Q: Find the electrostatic energy stored around a conducting sphere of radius a and surface charge…

A: For conducting sphere,surface charge density ρ=aεo

Q: A ball is thrown with a velocity of 15 m/s. If the de Broglie wavelength of the ball is 9.0 E −33 m,…

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Q: Consider a thin, uniformly charged rod of length L with total charge Q and test points A, a distance…

A: To calculate the potential difference between points A and B, we must first calculate the potential…

Q: A spacecraft approaching a star at 4.00 E 7 m/s fires a laser at a stationary target. The beam of…

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”