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Q: It is estimated that weapons tests in the atmosphere havedeposited approximately 9 MCi of 90 Sr on t...

A: The activity is given by,

Q: You throw up a basketball vertically into the air, and your friend shoots an arrow horizontally with...

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Q: 11 In Fig. 15-28, a spring-block system is put into SHM in two ex- periments. In the first, the bloc...

A: a) Since d2 is greater than d1 , so the amplitude at d2 is greater than amplitude d1. b) As the peri...

Q: In the figure below, what is the potential difference Vd - Vc between points d and c if ℰ1 = 5.0 V, ...

A: Consider loop bdcb   Applying Kirchhoff's voltage law         Vd -  Vc = i2R2      ...........      ...

Q: A 2.00 kg block hangs from aspring.A 300 g body hung below the block stretches the spring 2.00 cmfar...

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Q: A 2.0 kg mass attached to a 24.0 N/m massless spring is driven by an external force F=F0 cos ((2)(pi...

A: Since the damping coefficient is small, the equation for the undamped oscillator can be used. The pe...

Q: A microwave has average intensity : 10* W/m² 4 what will be amplitude of the electric field strength...

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Q: A tube 1.20 m long is closed at one end. A stretched wire is placed near the open end. The wire is 0...

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Q: What two combinations of a spherical and cylindrical lens produce a composite lens with vertical pow...

A: Basic Details The spherical lens is the lens which is used to correct the error in blurring of image...

Q: Is it possible that total internal reflection plays a role in rainbows? Explain in terms of indices ...

A: Total internal reflection can be defined as the phenomenon of light in which light gets reflected in...

Q: Why does the fusion of light nuclei into heavier nuclei release energy?

A: Nuclear fusion is the process in which two or more light nuclei join together to form a single heavi...

Q: A sailboat tacking aganist the wind moves as follow : 3.2 km at 45 east of north, 4.5 km at 50 west ...

A: Let north, south, west and east directions be taken as +ve y-axis, -ve y-axis, -ve x-axis and +ve x-...

Q: Isotopes that emit α radiation are relatively safe outside the body and exceptionally hazardous insi...

A: The alpha radiation gets absorbed very fast. They have low penetration and high ability of ionizatio...

Q: Find the mass converted into energy by a 12.0-kT bomb.

A: The relationship between the mass and energy is,

Q: *27 O A sinusoidal wave is sent along a string with a linear density of 2.0 g/m. As it travels, the ...

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Q: 7. A 1.80-kg falcon catches a 0.650-kg dove from behind in midair. What is their velocity after impa...

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Q: Why can heavy nuclei with odd numbers of neutrons be induced to fission with thermal neutrons, where...

A: Thermal fission occurs in transuranic elements whose nuclei contain odd numbers of neutrons. Fission...

Q: the fresh water behind a reservoir dam has depth D 15 m. A horizontal pipe 4.0 cm in diameter passes...

A: The force acting on the plug due to the depth of the water, The force acting on the plug due to the...

Q: 13. A concrete slab (thermal expansion coefficient of 1.20 x 10-5 per degree Celsius) is laid down w...

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Q: 2. A uniform electric field of magnitude 250 V/m is directed in the positive x direction. A 112.0-mC...

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Q: an airfilled, acoustic interferometer, used to demonstrate the interference of sound waves. Sound so...

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Q: What is the length of a simple pendulum whose full swing from left to right and then back again take...

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Q: In the figure below, the current in resistance 6 is i6 = 1.20 A and the resistances are R1 = R2 = R3...

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Q: A police car is chasing a speeding Porsche 911. Assume that the Porsche’s maximum speed is 80.0 m/s ...

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Q: A particle executes linear SHM with frequency 0.25 Hz about the point x = 0. At t = 0, it has displa...

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Q: A 3.0 kg particle is in simple harmonic motion in one dimension and moves according to the equation ...

A: It is given ,

Q: I need help with the attached problem. thank you!

A: Insulators are bad conductors of electricity, and thus no electrons flow through it.   From Lorentz ...

Q: Male Rana catesbeiana bullfrogs are known for their loud mating call.The call is emitted not by the ...

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Q: •19 Go Figure 17-35 shows two isotropic point sources of sound, S, Figure 17-35 Problems 19 and 105....

A: Given information: Here, λ is the wavelength of the sound source and D is the distance between soun...

Q: The equation of a transverse wave on a string is y = (2.0 mm) sin[(20 m-1)x - (600 s-1)t]. The tensi...

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Q: Water is moving with a speed of 5.0 m/s through a pipe with a cross-sectional area of 4.0 cm2.The wa...

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Q: An aluminum flagpole is 33 m high. By how much does its length increase as the temperature increases...

A: The initial length of the aluminium flagpole is 33 m, and the change in temperature is 15 degree Cel...

Q: A 125 cm length of string has mass 2.00 g and tension 7.00 N. (a) What is the wave speed for this st...

A: The wave velocity is given by Tension= 7 N Mass= 0.002 kg Length = 1.25 meter V= √{(7×1.25) ÷0.00...

Q: Calculate the true mass (in vacuum) of a piece of aluminum whose apparent mass is 4.3000 kg when wei...

A: It is given that,

Q: Use the law of reflection to prove that the focal length of a mirror is half its radius of curvature...

A: Figure.1 shows an incident ray parallel to principal axis.

Q: A well with vertical sides and water at the bottom resonates at 7.00 Hz and at no lower frequency. T...

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Q: alligators.An alligatorwaits for prey by floating withonly the top of its head exposed, sothat the p...

A: The expression for the required height from the change in buoyant force equation is,  

Q: What is the half-life of a radioactive isotope if the activity of a sample drops from 14,080 cpm to ...

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Q: Two sound waves with an amplitude of 12 nm and a wavelength of 35 cm travel in the same direction th...

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Q: Verify that the total number of nucleons, total charge, andelectron family number are conserved for ...

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Q: In an experiment, a rectangular block with height h is allowed to float in four separate liquids. In...

A: Here, The net force is zero since the block is stationary.

Q: A 50.0 g stone is attached to the bottom of a vertical spring and set vibrating. If the maximum spee...

A: (a) The formula of the angular frequency is:

Q: When the displacement in SHM is one-half the amplitude xm, what fraction of the total energy is (a) ...

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Q: 2. A glass beer mug has a mass of 1.3 kg when empty. You fill the glass with 0.7 kg of beer and slid...

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Q: A flat uniform circular disk has a mass of 3.00 kg and a radius of 70.0 cm. It is suspended in a hor...

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Q: 3 The acceleration a(t) of a parti- cle undergoing SHM is graphed in Fig. 15-21. (a) Which of the la...

A: Part A: At point 2 , acceleration of the particle is  particle is maximum and positive ,so at this p...

Q: An electromagnet wave has frequency 125MHz. What will be the wavelenght of the wave (M represent meg...

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Q: y! 72 Two sinusoidal 120 Hz waves, of the same frequency and amplitude, are to be sent in the positi...

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If y...

Q: A violin string 15.0 cm long and fixed at both ends oscillates in its n =1 mode. The speed of waves ...

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Q: A point source that is stationary on an x axis emits a sinusoidal sound wave at a frequency of 686 H...

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Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.