a. What is vav,x for the interval from t = 0 to t = 3.60 s? answer in m/s b. What is vav,x for the interval from t = 0 to t = 3.50 s? anser in m/s

Q: In the figure below, a solid ball rolls smoothly from rest (starting at height H = 6.0 m) until it…

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Q: A Vacuum cleaner with a mass of 15 kg is pushed with a constant force of 45 N at a downward angle of…

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Q: Find the magnitud and direction when you add the following 3 vectors: A=5m at a 20 degree angle in…

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Q: Physics An intergalactic spaceship arrives at a distant planet that rotates on its axis with a…

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Q: At the headend, the transmit DFB LASER reads 4.4 mW, what is 4.4 mW in dBm? 5.44 6.43 3.51 2.24

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Q: Question 2:A. Estimate the voltage drop for A solar array has been installed and the distance…

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Q: k Is Force equals mass times acceleration All O Newton's second law Newton's laws of motion O…

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Q: Question 22 At the headend the transmit LASER reads 6 dBm, what is this value in mW? .078 mW 15.85…

A: We know, Power(in dBm)=10logPower(in mW)1 mW

Q: Find the force applied Pressure 8.8 N/m2 Area=2 m2

A: GivenPressure=8.8 N/m2Area=2 m2

Q: turn In a typical kitchen blender, when it off, its angular velocity decreases you final 220 rev/min…

A: Given:-  The initial angular velocity ωi= 570 rev/min  = 9.5 rev/sec  The final angular velocity ωf=…

Q: How many joules of work are done on a box when a force of 25 N pushes it 3 m? a 1J b. 3 J c. 8 J 275…

A: Given : Force (F) = 25 N Displacement (d) = 3 m

Q: Find the force applied Pressure=111 N/m2 Area 30 m2

A: Pressure, P= 111 N/m2Area, A= 30 m2

Q: Find the density of object Mass=22 kg Volume=0.003 m3

A: Density is defined as the degree of compactness of a material or how tightly the atoms of the…

Q: The side length of the unit cell of a body-centered lattice, if you know that the atomic radius of…

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Q: 3(a) A U-tube manometer shown in Figure at equilibrium. One of the liquid is wa the right arm. The…

A: Givenρw=996 kg/m3L=45 mm=45×10-3 md=20 mm=20×10-3 m

Q: Question 1: A square wave, like the one in Figure 1, is applied across an RC circuit. If you monitor…

A: When a square wave input is given or feed to RC circuit, it produces a waveform very different from…

Q: Find the force applied Pressure=111 N/m2 Area 30 m2

A: Given data: Pressure, P=111 N/m2 Area, A=30 m2 Our question is to find the force applied (F).

Q: Calculate the work W in megajoules (1 MJ = 1 × 106 J) required to pump all of the liquid out of a…

A: Consider a differential element of width dh and height from the base h.

Q: Find the impulse Force=12.1 N Time=2.24 s

A: Given data : Force=F Time=t   Required : Impulse

Q: Calculate the momentum of a bullet of 25 g when it is fired from a gum with a velocity of 100m/s.

A: Mass, m = 25 kg Velocity, v = 100 m/s Momentum, P = ?

Q: easuring tape is accurate when the temperature is 20˚C. on a hot summer day when the temperature is…

A: GivenOriginal Length of steel measuring tape, Lo=10 mInitial temperature, T1=20°CFinal temperature,…

Q: 1 2 The figure shows an overhead view of a 0.029 kg lemon half and two of the three horizontal…

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Q: Find the kinetic energy Mass=2 kg Velocity 5.31 m/s

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Q: Q3. A 10 kg block is moving down a 30° incline rough surface with a constant velocity (see Fig. 1).…

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Q: Find the speed of train Distance-447 km Time=6 hr

A: Given data : Distance=d Time=t   Required : Speed

Q: Find the pressure Force 15.22 N Area=3 m2

A: Given data : Force=F Area=A   To find : Pressure

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A: Given, Rickshaw puller pulls the rickshaw by force (F) = 120N Rickshaw moves with constant velocity…

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A: Time taken, t = 15 seconds Acceleration due to gravity, g = 9.8 m/s² Initial distance, h = ?

Q: Uranus (mass = 8.68 x 1025 kg) and its moon Miranda (mass = 6.59 x 1019 kg) exert a gravitational…

A: Given data:  m1 = 8.86×1025 kg and m2 = 6.59×1019 kg Gravitational force (F) = 2.28×1019 N Required:…

Q: Find the force applied Pressure=8.8 N/m2 Area=2 m2

A: Given data : Area=A Pressure=P   Required : Force applied

Q: Find the speed of train Distance-447 km Time=6 hr

A:

Q: 31. Use your formula sheet to determine the charge of the pion (TT): 0 +1 0-1 +1/3 0-1/3 32. A…

A: 31. Charge of an up-quark , qu=+23 Charge of an anti down-quark , qd=+13

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Q: Compare wind Energy and Biomass Energy with necessary explanation and neat diagram.

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Q: What is the current in a DC circuit with 120-volts and a 60-watt light bulb?

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Q: (a) For what mass of molecule or particle is equal to 1.00 mm/s at 300 K? (b) If the particle is an…

A: GIVEN: Vrms=1mm/s Temperature T = 300K molar mass of water = 18g/mol  density of ice =920kg/m3now…

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Q: * Radio waves is example for ing Radiation C ing Radiation O None C

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Q: During a steady right turn, a person exerts the forces shown on the steering wheel. Note that each…

A: Given,

Q: Compute the Impulse Force=1.88 N Time=2.33 s

A: Given, Force = 1.88 N Time = 2.33 s

Q: A current of 1.5 A flows through a conductor for 2.0 s. What amount of charge passes through the…

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Q: A force of 49 N raises a 5 kg object 0.82 m upwards. How much work was done by the force?

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Q: Compute the Impulse Force 1.88 N Time=2.33 s

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Q: light pallet is at rest on the ground with a stone of mass 30 allet by providing a force of 310 N…

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Q: Ignoring relativistic effects, what is the speed of an electron (m=9.11x10-31 kg) that has been…

A: Given Mass of the electron, m=9.11×10-31kg Potential difference, E=80.0kV Kinetic energy:  is a form…

Q: 3. Pure gold has density. 19,300 kg/m³. A friend gives you as a gift a rectangular piece of metal…

A: Write the given data. ρpure gold=19300 kg/m3Vrect=10×20×30 mm3mrect=4.56×10-2 kg

Q: An electron that is initially 53 cm away from a proton is displaced to another point. If the change…

A: Given: Initial distance ri=53 cm, Change in electric potential energy ∆PE=3×10-28J. Required: Final…

Q: Find the Force Mass=44 kg Velocity=0.44 m/s

A: Given, Mass (m)= 44 kg  Velocity (v)=0.44m/s = constant

Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.