Ques 1: A car moves with 60 km/h in first one hour and with 80 km/h in next half an hour. Find: (a) total distance travelled by the car, (b) average speed of car in total 1.5 hours.

Q: If the density of air is a constant 1.29 kg/m^3, how high does the Earth's atmosphere go if the…

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Q: A 10-turn ideal solenoid has an inductance of (3.9x10^-3) H. To generate an EMF of (1.16x10^0) V…

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Q: Astronomers at Caltech have used mathematical modeling of Pluto and Neptune's orbits to calculate…

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Q: A body undergoes SHM according to the law æ(t)=Acos(wt – n). What is the value of the coordinate…

A: Given, A body is going through SHM Equation of SHM is given as…

Q: Find the rating of generators that must be installed in a hydro electric project serving a load…

A: Given, Catchment area = 6x109 m2 Mean Head, h =  38 m. Load Factor = 35%. Annual rainfall, F= 1.6 m.…

Q: A solid sphere rolls on a horizontal surface with constant speed. Ratio of rotational kinetic energy…

A: Let solid sphere has mass m and radius R and rolling with constant velocity v.     consider a point…

Q: 35. A refrigerator consumes 294 kWh of electricity per year. Determine the primary energy…

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Q: Answer: 6. A golfer takes three putts to get the ball into the hole. The first putt displaces the…

A: 6. Solution:   To determine the displacement we have to know the x-component and y-component of…

Q: 1. A 1.3 kg ball is coming straight at a 75 kg soccer player at 13 m/s who kicks it in the exact…

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Q: Richard is a Civil Engineer at a construction site building the launch pad for NASA/Boeing's Space…

A: Given: Charge,Q1=850μC=850×10-6CCharge,Q2=110μC=110×10-6CMass,m=0.2kgDistance between the…

Q: Juan is a Software Engineer for the Department of Water and Power (DWP), which stores LA's water in…

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Q: 12. Concrete slabs of length 25 m are laid end to end to form a road surface. What is the width of…

A: length of slab = 25 m  Width of between  slab  a = (12*10-6 )( 25)(150 C)    a = 0.0045 m b =…

Q: 6. A uniform electric field 10 N/C exists in vertically downward direction, the increase in the…

A: Given, a uniform electric field exists vertically downward direction with a magnitude of 10 N/C…

Q: Two bulbs of 500 W and 300 W are manufactured to operate on a 220V line. If their resistances are R.…

A: Que 4. Given: Two bulbs powers are, P1=500 W P2=300 W Voltage, V=220 V To find: Ratio of resistances…

Q: 0 Calculate the composition of a ZnS,Se1y alloy with a band gap of 2.75 eV, given that Eg Znse =…

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Q: Sketch the following vectors on a separate piece of paper and draw the resultant: a) C+A b) D-B c)…

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Q: Q. A particle is contained in a two- dimensional square box with infinitely hard walls. The…

A: Let us calculate the part a of the question, i.e. to find the normalized wave function for a 2-D…

Q: a) An ideal gas of particles, each of mass m at temperature r, is sub- jected to an external force…

A: please see the next step for solution

Q: A mass attached to a spring vibrates with SHM of frequency 4 Hz and amplitude 6 cm.What is the…

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Q: Wire is welded to form a circular loop and kept in plane as shown. Now it is made to rotate with…

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Q: 9. A particle of mass 0:3 kg is subjected to a force F=-k x with k = 15 N/m. What will be its…

A: Mass m = 0.3 Kg spring constant is k = 15 N/m Force F = - k x  particle is released from a point x =…

Q: A bullet with a 0.5 C charge is shot due East with a speed of 840 m/s in a region where there is a…

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Q: is given by: (-4 + 2t2 + 1001 + 5) rad The magnitude of the angular velocity (in rad/s) of this body…

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Q: A metal is heated up to a temperature of 500 °C. It is then exposed to a temperature of 38 °C. After…

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Q: Two identical charges are placed at the two corners of an equilateral triangle. The P.E of system is…

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Q: VECTORS х-component y-component A = 2.5 N, 40 degrees 1a 1b B = 3.2 N, 110 degrees 1d

A: Answers have been boxed.

Q: 14. A parachutist jumps out of a plane and falls freely for the first 50 m of the decent. The…

A: Before the opening of the parachute: ∆y=50 mvi,y=0 m/s Using the kinematic equation,…

Q: An electric generator contains a coil of 100 turns of wire, each forming a rectangular loop 50.0 cm…

A: Given, The number of turns, N=100 Rectangular loop length and breadth, a=0.5mb=0.3m Magnetic field,…

Q: What is the charge carried by a 5 m long coaxial cable whose outer radius is 5 times larger than its…

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Q: 20. Consider two pipes of the same length: one pipe is open at both ends and the other pipe is…

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Q: THE OBJECT OF MASS m is LAUNCHED AS SHow N FROM A DISC OF momeNT OF INERTIA Io. THE DISC IS FREE TO…

A: Given that:

Q: 7. An asteroid is headed towards a starbase. To try and avoid a collision, an explosive device is…

A: 7. Consider the following illustration showing the asteroid’s motion as described:     Here, ux and…

Q: Q9: show that S×P£ Q10: Suppose a particle of spin 1/2 is in the state p = ÷C) %3D a) If you measure…

A: I have Uploaded the solution in step 2 and 3

Q: 15. The period of a simple pendulum is T 1 son Earth. When brought to the Moon where g is 6-times…

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Q: Four thin rods each of mass M and length I are joined together to form a square loop. M.I. of the…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Hofisaib is a doctor aboard a US Navy nuclear submarine, and is currently off the Coast of Hong Kong…

A: To solve the question, we will use the formula: P=hρg