A body at a temperature of 0° F is placed in a room whose temperature is kept at 100°F. If after 10 minutes the temperature of the body is 25°F, the temperature of the body after 20 minutes.

Q: Two point charges of q1=+2μC and q2=−8μC are at a distance of d=10cm. Wheremust a third charge q3 be...

A: Given: q1 = 2 μc q2 = -8 μc distance  d  = 10 cm

Q: MV². 2RT dN M F(V)dV =5 N = 47(- 3:2y² exp(- `2TRT AP(= Find the Vm value by considering the followi...

A: Here Vm is the most probable speed as shown in the graph most probable velocity physically means tha...

Q: Please Provide an explanation for the answer. Thank you

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Q: MN is a straight current carrying conductor located at the y axis; the intensity of the electrical c...

A: Given information: The current through the conductor is, i=100 A The perpendicular distance of the p...

Q: Please explain the answer Thank you.

A: Speed of light in a medium  v = c/n Where c is speed of light in vaccum n = index of refraction

Q: 1. A planetary probe is a spacecraft carrying instruments intended to explore the physical propertie...

A: Given: At the distance R = 600 m, The electric field E = 180 N/C At the distance R = 500 m, The elec...

Q: Two VERY LONG wires are placed along parallel lines as shown below in the picture. The wire ON THE L...

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Q: Can you calculate the inductance (L) of this coil? inner diameter: 7 mm outer diameter: 18mm height...

A: The inductance of a coil can be determined by the following formula: Lcoil ≈ N2μD2ln8Dd - 2 where, L...

Q: V !/4 e-ax? = (2a/r) , =?

A:

Q: The value of ## is 27.93 ## = 27.93

A: (1) (a) using kinematic expression vy=v0y-gt10=v0sinθ-gt1t1=v0sinθg=30.0 m/ssin20.0°9.8 m/s2=1.047 s...

Q: Prove the relationship between the absorbance and concentration in Beer Lambert’s law. What is the a...

A: Given, Lambert's law established relationship between absorbance and concentration 

Q: Use the following constants if necessary. Coulomb constant, k = 8.987 × 10° N · m² /C². Vacuum permi...

A: The magnetic field by current-carrying wire be defined as, B=μ0I2πR Where, I be defined as the curre...

Q: R = 3.5 cm

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Q: Calculate the group and phase velocities for the wave packet corresponding to a relativistic particl...

A: The phase velocity is, vp=λνλ=hp=hγmvν=Eh=γmc2hthus,vp=hγmvγmc2h=c2v                                ...

Q: Particles called π-mesons are produced by accelerator beams. If these particles travel at 2.70 x 108...

A: Time Dilation Time dilation is a phenomenon that occurs when a frame is moving at a very high veloci...

Q: Please explain the answer Thank you.

A: Focal length = radius of curvature/2  

Q: 5. Calculate the arc length S1 in the accompanying figure. R2 = 8 cm, R1 = 3cm, and S2 = 15.20 cm. S...

A: Solution:   Given Values,   R1=3 cmR2=8 cmS2=15.20 cm  

Q: A silicon sample is doped by arsenic donors of concentration 1.0x1023 m-3 the sample is maintained a...

A: Given: The donor concentration is Nd = 1.0x1023 m-3 The acceptor concentration is Na = 0 The maintai...

Q: Please Provide an explanation for the answer. Thank you

A: Materials consist of atoms that selectively absorb some colors of the light incident on them and ref...

Q: Dynamics of rigid bodies 2) (ANSWER in m)

A: Given: Speed, v12 =10 km/h Skid distance, d1=3 m

Q: A positive charge of +q1 is located 3.00m to the left of a negative charge – q2. The charges have di...

A: Initially, the magnitude of the charges have to be calculated using the concept of electric field du...

Q: 2- (25 points) A block with mass of m, = 2 kg is placed on top of a block with a mass m2 = 4 kg. A h...

A: Given Mass of m1          = 2 kg Mass of m2          = 4 kg Horizontal force (F) = 60 N Kinetic fric...

Q: A rubber ball rebounds to 0.72 of the height from which it has dropped. It is first dropped from ahe...

A: The initial height of the ball is h = 6 m and the ball rebounds to 0.72 of the height from which it ...

Q: A ball of mass m1 = 12 kg is moving at 6 m/s towards another ball of mass m2 = 5kg that is initially...

A: In a perfectly elastic collision, the total linear momentum of the system and the total kinetic ener...

Q: A 2 kg mass initially moving with a velocity vi = 3x + 2y m/s is acted upon by a force F = 4x - 10y ...

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Q: A sample of extrinsic semicondutor is in the shape of a slab whose length is 5cm , width 0.5cm, and ...

A: Solution:   Given values, Current(I)=10 mA magnetic field(B)= 0.6 wb/m2 Thickness(d)= 1 mm= 10-3 m H...

Q: A drone accelerates constantly from rest to 15 m/s in 20 s, remains at that speed for 25 s and then ...

A: The distance travel by the object is equal to the area under the speed-time curve.   The acceleratio...

Q: a)Derive the expression for the impedance (Z) of the ac circuit shown below. (b) What is the phase a...

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Q: A uniform solid ball rolls without slipping down a plane which is inclined at 31° to the horizontal....

A: The mass of the ball is m = 0.1 kg The radius of the ball is r = 0.4 m The initial speed of the ball...

Q: 5. OMG! A Sumo wrestler is running towards you! The Sumo wrestler, running at 2 meters per second, h...

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Q: 1. What was the initial speed of a ball thrown upwards (close to the surface of the earth) if it ret...

A: Given that,The ball is thrown upwards and it reaches back,So time to reach maximum height is half of...

Q: What is the probability that the electron with the lowest energy in a box of 2.0 nm is between x = 0...

A: The wave function (Ψ) of a particle in a 1D- box is given by, Here, L = 2 nm denotes the length of ...

Q: Use the semiempirical binding energy formula to estimate the pairing term for the 208pb nuclei (A-20...

A: Solution : Given atomic number and mass number : 208 and 82. Pairing term 208 pb nuclei. The semi-em...

Q: For the circuit shown •Find the equivalent resistance seen from the source terminals. •Use voltage a...

A: