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Q: A proton has an initial speed of 5.5 * 105m>s. (a) Whatpotential difference is required to bring ...

A: (a)   Apply energy conservation, and determine the required potential difference for the proton as f...

Q: Three 0.300-kg billiard balls are placed on a table at the corners of a right triangle as shown. The...

A: Let us consider three billiard balls are placed on a table at the corners of a right triangle as sho...

Q: Solve this integral for when cis a perfect sphere .Hint : E becomes parallel to ds and you can take ...

A: The integral equation of Gauss's law is ε0∫sE ·→ds→=∫vρ dv

Q: ) Two waves traveling on the same string are described by the wavefunctions: 2n y2(x, t) = A sin (kx...

A: SOlution: as given two waves y1=Asin(kx-ωt)y2=Asin(kx-ωt+2π/3)

Q: A particular heat engine has a mechanical power output of 4.40 kW and an efficiency of 26.0%. The en...

A: Hey, there are multiple questions posted; we are authorized to answer one question at a time, since ...

Q: 15. Determine the kinetic energy of a 1000-kg roller coaster car that is moving with the speed of 20...

A: Mass of roller coaster (M) = 1000 kg Speed of roller coaster (v) = 20 ms  

Q: A horse is pulling the horsebox having 8 kg mass in it with a force of 40N; if the applied force has...

A: Analyze the free body diagram of the system. Note:  Consider the upward direction to be positive an...

Q: Constants I Periodic Table A particle is located at F=(4.01 +3.5j +5.8k) F = (8.6j – 3.8k) N acts on...

A: Given:-  r→=4.0i^+3.5j^+5.8k^ mF→=8.6 j^-3.8k^ N Find:- torqueζ=?

Q: A planet has a radius of 4.00 x 10^6 m, and rotates so rapidly that an object on the equator feels o...

A: Given  R=4.00 x 106  W = mg10  

Q: 7. An object's velocity is v = t* – 3t² where t 2 0. a) At what time/times is the object at rest? b)...

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Q: IMPORTANT! For problem 2, set t=1.5 s

A: The second equation of motion is v = u + a t h =  u t +0.5 gt2v2 = u2 + 2 a s  where, u is the initi...

Q: The value of the momentum of a system is the same at a later time as at an earlier time if there are...

A: The momentum of an object is the product of mass and velocity of the particle of a system.

Q: A hang spring oscillates at a frequency of 60 cycles in a minute when an object is attached to it. C...

A: Given data: Frequency of oscillations, f=60 /minutes = 6060=1 s-1 Spring constant, k=250 N/m

Q: a) What is the resistance of the lamp when the circuit is 0.2A b) What is the resistance of the lamp...

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Q: *39. ssm The bulk modulus of water is B = 2.2 × 10° N/m². What change in pressure AP (in atmospheres...

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Q: GRAPH A GRAPH B GRAPH C Match the answers with questions based on the given graphs. Time Time Time ....

A: Graph A Initially, the slope of the graph is zero since the curve is parallel to the horizontal axi...

Q: four equal charges of 2 μC are situated at the corners of a square of side 1.0 m. Find the electric ...

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Q: An image formed by a convex mirror has a size h' = +5 cm. knowing that the object has a height h > 0...

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Q: Consider a charge +q in a uniform electric field E. Work is exerted to move the particle a distance ...

A: Given data  The charge is +q The electric field is E The distance is s   The force on the charge is,...

Q: A 1,200 kg car accelerates from 5.0 m/s to 27 m/s in 10 seconds. What is its acceleration?   What...

A: From Equation v=u+at 27=5+a(10)a =2.2 m/s2

Q: Q.10. A bullet of mass m = 20 g is fired horizontally into a wooden block, of mass M = 1 kg, resting...

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Q: Find the total capacitance in micro farads of the combination of capacitors shown in the figure belo...

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Q: Charge q, = 2.00 nC is at x, = 0 and charge q, = 6.50 nC is at x, = 5.00 m. At what point between th...

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Q: A 2.45 g air-inflated balloon is given an excess negative charge, q¡ = -3.25 × 10-8 C, by rubbing it...

A: Given data *The mass of an air-inflated balloon is m = 2.45 g = 2.45 × 10-3 kg *The negative charge ...

Q: Suppose you have a lens system that is to be used primarily for 700-nm red light. What is the second...

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Q: A 0.50-kg chuck of ice at -10⁰C is placed in 3.0 kg of “iced” tea at 20⁰C. The tea can be considered...

A: At what temperature and in what phase will the final mixture be?given,mass of ice(mice)=0.50 kgTempe...

Q: Calculate the voltage applied to a 293.0-pF capacitor when it holds  8.2? -E−10-C of charge.

A: Given:-               Charge by capacitor Q = 8.2 μC                          Capacitance   C = 293....

Q: A standing wave is formed on a string of a given tension, T, linear density, H, and length, L. If th...

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Q: 14. Answer the following questions for projectile motion on level ground assuming negligible air res...

A: Given:- A projectile motion on level ground assuming negligible air resistance  and the initial angl...

Q: A ball rolls off the table with a horizontal velocity of 5 m/s. How does the horizontal velocity aff...

A: The expression for time (T) taken by ball to fall is: T=2hg Here, h is the height, and g is the acce...

Q: What is the equivalent capacitance of a 1 Farad capacitor and a 0.5 Farad capacitor in parallel?

A: Given: The first capacitance is C1=1 F. The second capacitor is C2=0.5 F. The expression for equival...

Q: Solve using dimension Analysis/ Factor meth 65cg = %3D ng 2. 324das = _ds • 3. 1516 g to kg

A: SOlution: conversion of units using the dimension method

Q: Calculate the magnitude of the electric field at the center of a square 42.5cm on a side if one corn...

A: Given data The side of the square is given as s = 42.5 cm. The charge on one corner of the square i...

Q: What are the sign and magnitude of a point charge that produces a potential of −49400 V at a distanc...

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Q: Figure 2 shows a 40 kg crate that is pushed with constant velocity at a distance 8.0 m along a 30° i...

A: Free body diagram Crate is assumed to move towards right along the incline

Q: A particle of mass m is subject to an attractive central force k F(r) For which values of the conser...

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Q: what is horsepowers

A: Horsepower is a unit of measurement used for Power. In layman terms, it is the amount of power an en...

Q: A thin conducing plate 2.0 m on a side is given a total charge of −10.0 μC . (a) What is the electri...

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts (a, b, an...

Q: 1) On the surface of Venus, which has a mass of 4.869×1024 kg, an object has a weight of 213 N and a...

A: When the object is on surface of Venus the weight of object is equal to the gravitational force, F=G...

Q: A lawn mower is pushed at a constant velocity of 0.76m/s. The person pushes horizontally forwards wi...

A: Given, v=0.76 m/sF=80 N

Q: Particles A and B collide to produce particles C, D, and E: A+B ---> C +D+E. A has a charge of le, B...

A: Given: The charge on A is 1e. The charge on B is 0. The charge on C is -2e. The charge on D is 1e Th...

Q: The two vectors a andb in Figure have equal magnitud es of 10.0m and the angles are O, = 30 °. and @...

A: Magnitude of vector a→ = magnitude of vector b→ = 10 mθ1 = 30oθ2 = 105The angle made by b→ = 105+30=...

Q: The diagram below shows a light plank balanced on two supports, A and B. Weights of 50 N, 25 N and 3...

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Q: Red blood cells can be modeled as spheres of 7.03 µm diameter with -2.55 × 10¬12 C excess charge uni...

A: From Gauss law, we know that the electric field inside a spherical charged shell is Zero, Since 3.25...

Q: Two point charges, QA = +8 μC and QB = -5 μC, are separated by a distance r = 10 cm. Whatis the magn...

A: Given : QA = +8 μC = +8 x 10-6 C QB = -5 μC = -5 x 10-6 C r = 10 cm = 0.10 m k = 9 x 109 Nm2C-2

Q: 3. A research submarine has a 30-cm-diameter circular window 10.0 cm thick. The manufacturer says th...

A: The pressure at the depth can be expressed as, P=hρg

Q: Solve for the frequency of a vibrating pendulum if it has a length of 2m. What will be its period? I...

A: For the first case it is given that, L=2m

Q: A force F = (10.0i + 9.0j + 12.0k) kN acts on a small object of mass_95 g. If the displacement of th...

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Q: The 7.00 kg object shown below is released from rest at a height of 8.0 m on a curved frictionless r...

A: SOlution: given that m = 7 kg h = 8 m force constant k = 600 N/m

Q: For each force diagram, determine the net or resultant force (∑F), the mass, and the acceleration of...

A: ques:For each force diagram, determine the net or resultant force (∑F), the mass, and the accelerati...

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.