The temperature of sink of Carnot’s engine is 27°C. If the efficiency of the engine is 25%, then the temperature of source must be ___________ a) 27°C b) 127°C c) 227°C d) 327°C
Q: The thermometer bulb should have ___________ a) High heat capacity b) No heat capacity c) Small heat...
A: C
Q: One nuclide in each of these pairs is radioactive. Predict which is radioactive and which is stable:...
A: The stability of an atom find by two methods 1st its neutron proton ratio and Weizsacker semi-empir...
Q: Given a block of mass 5.00 kg on a table being pulled horizontally by a rope. The rope pulls to the ...
A: The force on and object is given by:
Q: 13) Which of the following can be said not accompanied by a wave? A) tennis ball B)none C)neutron d)...
A: For tennis ball wavelength of wave will be in order of 10-25 m For the rest of particles wavelengt...
Q: The interplanar spacing of (220) planes of a FCC structure is 1.7458 Å. Calculate the lattice consta...
A: Option
Q: 9.49 Find the Thévenin equivalent circuit with respect to the terminals a,b of the circuit shown in ...
A: Given:- voltage in theorem
Q: Bernoulli’s Principle A wind blows at the speed of 30 m/s across a 175 m2 flat roof of a house.(a) W...
A: Given : v=30m/s A=175m2 (a) The density of air at atmospheric pressure is : ρ=1.225 k...
Q: A boy carrying a box on his head is walking on a level load from one place to another on a straight ...
A: A option
Q: A solid sphere rolls down two different inclined planes of the same heights but different angles of ...
A: C
Q: What is the possible number of different types of lattices (3D)? a) 4 b) 8 c) 14 d) 17
A: C
Q: In the figure a solid sphere of radius a-3.40 cm is concentric with a spherical conducting shell of ...
A: Note: Out of given multiple parts, we solve only first three parts unless specified. You can resend ...
Q: Temperature is a microscopic concept. a) True b) False
A: False
Q: The circuit in the figure below contains a 90.0 V battery and four capacitors. In the top parallel b...
A: Subpart (a): According to he diagram, the capacitors C1 and 6.00 μF are in series and C2 and 2.00 μF...
Q: The slingshot that David uses has a length of 0.5 m. The stone is to be released with a velocity of ...
A: Determine the slingshot’s angular acceleration (α) from the radius (r) – linear acceleration (a) rel...
Q: Two identical balls A and B collide head on elastically. If velocities of A and B, before the collis...
A: D option
Q: 2. The 7-oz slider has a speed of 2 ft/s as it passes point A of the smooth wire guide that lies in ...
A: Solution: a) Given that, The weight of the slider is 7-oz So, Wslider=7 oz×1 lb16 oz=0.437 l...
Q: Am affliane uss brag the ° offlime uses 18KJ for S minuts an velty. flaney at g 200 V. Fud the curle...
A: Its a simple problem of current and electricity energy consumed for 5 minutes is 18 kJ so power co...
Q: A 1 Ω resistor and a 4 Ω resistor are connected in parallel. The combination is connected in series ...
A: The series combination of two resistors r1 and r2 give the total resistance as, r'=r1+r2 (1) A...
Q: ving, prove that the given series converges. ak -k=1 1+ k³ar° ak 1+ak ak k=1 < 00.
A:
Q: The Wien’s displacement law expresses a relation between ___________ a) Wavelength corresponding to ...
A: A
Q: A simple pendulum hanging freely and at rest is vertical because in that position ___________ a) Kin...
A: D
Q: Advanced Physics Question
A:
Q: A child sits on a merry‑go‑round that has a diameter of 6.00 m. The child uses her legs to push the ...
A: This is a problem from circular motion. To solve this problem we will use the modified kinematical e...
Q: Fluids cannot resist sheer stress. a) True b) False
A: True
Q: A body can be shielded from gravitational effects. a) True b) False
A: False
Q: A force acts at the origin of a coordinate system in a direction defined by the angles a = 113.2° an...
A: Part a: The addition of square of direction cosines is one. Substitute the required values and solv...
Q: The figure above shows a circuit containing an electromotive force (a battery), a capacitor with a c...
A: We need to solve the given differential equation RdQdt+1CQ=E(t) The resistance is 30 Ω, The voltage...
Q: The following wires are made of the same material. Which of these will have the largest extension, w...
A: A
Q: No material is perfectly elastic. a) True b) False
A: No material is perfect elastic . This is true . Every material has some properties and every mat...
Q: G is called gravitation constant. a) True b) False
A:
Q: A perfectly black body is one whose ___________ a) Absorptive power is 1 b) Absorptive power is 0 c)...
A: A
Q: On being displaced, the centre of mass of unstable equilibrium goes ___________ a) Higher b) Neither...
A: D option
Q: David the shepherd boy faces Goliath the soldier in a battle. The only weapon David has is a slingsh...
A: Given : Angle θ = 30° Horizontal displacement x = 10 m Vertical ...
Q: The diameter of brass rod is 4mm. Young’s modulus of brass is 9×109 N/m2. The force required to stre...
A: A
Q: A 97 fC is placed inside a cube. What is the amount of electric flux passing through each side?
A: charge enclosed by the cube q = 97×10-15C we know from guass law that electric flux passing through ...
Q: Example 2 S The man pulls on the cord with a force of 350N. Represent this force acting on the suppo...
A:
Q: A skydiver jumps from an airplane, the resistance he encountered is proportional to its velocity and...
A: 1. Let the resistance be kv(i) mg - kv1 =0 during limiting velocity(ii) mg -3k'v2 =0 (on 2nd dive...
Q: The escape velocity in earth is 11.2km/s. What will be its value on a planet whose radius is double ...
A: Option b
Q: If the distance between the earth and the sun were half its present value, the number of days in yea...
A: According to the Kepler's third law the square of the time period of a planet around the Sun is dire...
Q: 12) Related to wavefunction; a)himself can be measured. b)square of wavefunction can be measure...
A: Wave function itself is a complex quantity, so it cannot be measured, for any physical quantity to b...
Q: If earth loses its gravity, then for a body ___________ a) A weight becomes zero, but not the mass b...
A: A
Q: A closed compartment containing gas in moving with some acceleration on horizontal direction. Neglec...
A: B
Q: What happens when a material is heated?a) It contractsb) It meltsc) It expandsd) It bursts
A: C
Q: A beaker full of hot water is kept in a room. If it cools from 80°C to 75°C in t1 minutes, from 75°C...
A: C
Q: A hook of radius 2m weighs 100kg. It rolls along a horizontal floor so that its centre if mass has a...
A: D
Q: If in a wire of Young’s modulus Y, longitudinal strain is produced, then the value of potential ener...
A: The correct option is d. That is, If in a wire of Young’s modulus Y, longitudinal strain is produce...
Q: PLEASE. THIS IS **NOT** A GRADED QUESTION!!!!! I need to know how to do numbers 1, 5, and 6. PLEAS...
A: Electric flux is defined as the amount of electric field passing through a given areaIt is given aϕ=...
Q: Sound Wave The oscillations in air pressure representing the sound wave for a tone at thestandard pi...
A: Given information: The equation of the oscillations, y=0.02sin880πt 0≤t≤0.01
Q: The earth revolves around the sun with an angular velocity of 2×10-7rad/s in a circular orbit of rad...
A: Force exerted by the sun = Centripetal force F = Mrω2 F = 6×1024×1.5×1011×(2×10-7)2 = 36×1021 N
Q: The position of a particle according to the appropriate coordinate set can be vectorially specified ...
A: Given, position rt=isin2πt-16j1-e-t/4+kt24
The temperature of sink of Carnot’s engine is 27°C. If the efficiency of the engine is 25%, then the temperature of source must be ___________
a) 27°C
b) 127°C
c) 227°C
d) 327°C
Step by step
Solved in 2 steps
