P d L

Q: Q2:- Light from the sun arrives at the earth, an average of 1.48 × 10' m away, at the rate of 1.4 kW...

A: Given :  P = 1.4 kW/m2  Distance = 1.48 × 1011 m Frequency = 4.95 × 1014 Hz We have to calculate the...

Q: John is sitting with his knee flexed to 90 degrees. The force of the patellar tendon is 5 N. The for...

A: The force system of the patellar tendon and the quad is shown below. Here, R denotes the resultant.

Q: 9. The following table gives data, in kJ, for a system under going a power cycle consisting of four ...

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Q: Please solve

A: When a soft iron  is placed in the magnetic field , it also becomes a magnet. 

Q: A stationary proton is accelerated through a potential difference of 83.5 kV. What speed did the pro...

A: Given data: Potential difference of proton is, V'=83.5 kV=83.5×103 V.

Q: In moving the spectrometer telescope to different angles, we have to measure angular positions accur...

A: Main scale reading (M) of the spectrometer = 280 degree Number of small lines of vernier scale = 30T...

Q: & 1000 kJ of heat leaves hot gases at 1400°C from a fire box of a boiler and goes to steam at 250°C....

A: Given: Amount of heat = 1000 KJ Temperature = 14000 C Atmospheric temperature = 200C  

Q: Q1: A nuclear bomb at the instant of explosion may be approximated to a blackbody of rad 1.3 m with ...

A: Radius of black body = 1.3 m  Surface temperature = 10000000 kelvin

Q: Suppose that the electric potential varies along the x-axis as shown in Figure below. In which inter...

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Q: Example: A ball is thrown upward with an initial velocity of 12m/sec from a roof top 40m high. Find ...

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Q: Suppose a pendulum bob is swinging back and forth. If the highest point is 12.5 cm above the lowes...

A: Recall conservation of mechanical energy KEi+PEi=KEf+PEf

Q: If a particle moving in one-dimensional motion about the x-axis starts from the originwith velocity ...

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Q: #2 #2 #2 #2

A: Given that, The radius of a curve, r = 120 m Speed of vehicle, v = 48 km/h  The coefficient of frict...

Q: Three charges are placed in 3 corners of a square A (qA = -1.0μC), B (qB = +1.0μC), C (qC = -2.0μC)....

A: The Force acting between two charged particles was described by Coulomb. The force is proportional t...

Q: The rainbow of visible colors in the electromagnetic spectrum varies continuously from the longest w...

A: Colours are electromagnetic waves with different wavelengths. Frequency is the measure of the  numbe...

Q: A vane pump is to have a volumetric displacement of 85000 cubic millimetre. It has a cam ring diamet...

A: Write the given values of this problem. Vd=85000 mm3 or 8.5×10-5 mdc=8.25 cm or 0.0825 mwv=45 mm or ...

Q: Get the answer

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Q: Q3:- (a) Find the change in wavelength of 85 pm x-rays that are scattered 115° by a target. (b) Find...

A: A) GIVEN The wavelength of X-Rays = 85 pm Scattering angle =115o To calculate: Change in wavelength

Q: Q2 / An automobile, starting from rest, reaches 60 km /hr in 15 s. (a) Calculate the average acceler...

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Q: Find the minimum diameter of a (50 m)-long nylon string that will stretch no more than (1 cm) when a...

A: Given : L = 50 m ∆L = 1 cm = 0.01 m m = 70 kg Y = 3.51 x 109 N/m2

Q: The net external force acting on an object is zero. Is it possible for the object to be traveling wi...

A: Formula of force:    Fext=ma  =m×dvdt  

Q: i. An engine of mass 500kg is mounted on an elastic foundation of equivalent stiffness 7x105 N/m. De...

A: Note: As per Bartleby guidelines only one question has to be solved at at time. Kindly upload other ...

Q: Please answer g, h and I

A: Gauss's law∮E→.dA→=qenc∈0 For infinite line of charge qenc=lλ

Q: H.W: An object is thrown horizontally at 20m/s from a cliff top 45m above sea level. Find (a)the tim...

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Q: Please explain

A: The substances that are weekly attracted to the magnet (paramagnetic) are always arranged in the mag...

Q: An electric charge Q is distributed uniformly along a thick and enormously long conducting wire with...

A: Given, Charge Q is distributed along the wire of length L and radius R. The volume charge density of...

Q: A sine wave {12 Sin(2t+45)} is applied to a full wave rectifier of resistance (2 kQ). The DC current...

A: The Sine wave is given by : V = 12Sin(2t +45) volts Resistance (R) = 2000 ohm   

Q: An astronaut traveling at a speed of 0.75c requires 25 years, as measured on Earth, to make a round ...

A: The Lorentz factor is  γ = 1 -vc2 where, v is the speed and c is the speed of light. 

Q: A box with a volume (V=0.05 m³) lies at the bottom of a lake whose water has a density of (1*10³ kg/...

A: Solution: Given that m = 1000 kgV = 0.05 m3ρ = 1000 kg/m3

Q: Calculate the following values for the circuit shown below: a) the total resistance b) the total cur...

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Q: Q3:- (a) Find the change in wavelength of 85 pm x-rays that are scattered 115° by a target. (b) Find...

A:

Q: What is the average power must produce to accelerate car with 1500 kg from rest to the speed 30 m/se...

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Q: If a particle moving in one-dimensional motion about the ?̂-axis starts from the originwith velocity...

A: Acceleration of particle = -a Initial velocity of particle = vi  

Q: As it passes Grand Bahamas Islands, the eye of the hurricane Katrina is moving in adirection of 60 0...

A:

Q: A spacecraft receding from the earth emits radio waves at a constant frequency of 10^9 Hz. If the re...

A: Let the difference between the classical and relativistic frequency of the radio wave be 1 Hz. For c...

Q: H.W: A ball thrown up from a rooftop of height 40m lands on ground in 4s. (a)what is its maximum hei...

A: Apologies. We only answer one question at a time. we will answer the first one as the exact one wasn...

Q: ilculate the fractional change in volume (Dv/v) of an aluminum bar that uhdel ange in temperature of...

A: volume change with temp with relationships   V=V0(1+3α△t)        △t= CHANGE IN TEMP                 ...

Q: A point of particle of charge 2.5 nC and mass 3.25 x10 ^ -3 kg is in uniform electric field directed...

A: Given: Electric charge, q = 2.5 nC. Mass of the particle, m = 3.25 x10-3 kg. Distance traveled, x = ...

Q: A basketball of circumference (75.5 cm) and mass (589 g) is forced to the bottom of a swimming pool ...

A: Given that, The circumference of the basketball, C = 75.5 cm The mass of a basketball, m = 589 g It ...

Q: Find the minimum diameter of a (50 m)-long nylon string that will stretch no more than (1 cm) when a...

A:

Q: Some of the energy levels of the mercury atoms are shown in figure below. Energy (eV) 1.6 -10,4 Grou...

A: Given From the energy level diagram, E1=-10.4  eVE4=-1.6 eVE∞=0 Find the amount of energy required t...

Q: 3. What is the magnitude and direction of the electric field 20 cm directly above an isolated 3.3 x1...

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Q: A conducting cylinder of radius 3.5 cm and length 5.6 cm has a total charge of 4.5 x10 ^ -9 C distri...

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Q: Calculate the center of the Earth's mass and its Radius? A Ye

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Q: Q3:- (a) Find the change in wavelength of 85 pm x-rays that are scattered 115° by a target. (b) Find...

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Q: Please help me with details explanation. Thank you in advance.

A: a) Ionization energy is  ∆E=E∞-E1∆E=0--13.6×z2n2For Helium n= 1 and Z= 2 ∆E=13.6×2212∆E=54.4 ev∆E=54...

Q: Solve using GUESS method. Atomic and Nuclear Phenomena 3. A radioactive sample has a decay constant ...

A: Given The decay constant of the radioactive sample is λ=0.2193 min-1. The half-life is calculated ...

Q: Q2 / An automobile, starting from rest, reaches 60 km /hr in 15 s. (a) Calculate the average acceler...

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Q: between occurrences fraction of the total er

A: Amplitude of angular oscillator =A  angular frequency of angular oscillator = w  KE=1/2mw2(A2-y2)  P...

Q: In this experiment we use a diffraction grating to separate the different colours from the lamp usin...

A: The splitting of white light into its seven constituent colors is called dispersion. 

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.