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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: 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: Which of the following is not a state function? a) Work done at constant pressure b) Enthalpy c) Wor...
A: Option
Q: The door of a domestic refrigerator is kept open while the switch is on. Then the room will ________...
A: A
Q: flywheel has a mass of 25kg has a radius of 0.2m. What force should be applied tangentially to the r...
A: Option b
Q: taining 6 x 10" unde isotope has an activity half-life?
A: Hey there, since you have posted multiple questions. We have answered the first one for you. Please ...
Q: If the radius of the earth decreases by 1% and its mass remains the same, then the acceleration due ...
A: Option
Q: A man is standing on an international space station which is orbiting earth at an altitude 520km wit...
A: Given data: The altitude is h=520 km. The speed is v=7.6 km/s. The mass of the man is m=50 kg. The...
Q: A thick wire is suspended from a rigid support and no load is attached to its free end but the wire ...
A: A
Q: A steel ball is dropped in oil, then ___________ a) The ball attains constant velocity after sometim...
A: A
Q: An electric field of strength E = 5000 N/C is directed along the +x-axis as shown. A electron is ini...
A: Given Electric field E = 5000 N/C
Q: According to Hooke’s law of elasticity, if stress is increased, the ratio of stress to strain? a) In...
A: According to Hooke's law of elasticity limit. stress is directly proportional to the strain stress...
Q: Question 13 The density of states g(E) depends on the number of degrees of freedom for electron moti...
A: Question 13) The density of states g(E) depends on the degrees of motion of the electron. so, the an...
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: A cube is subjected to a uniform volume compression. If the side of the cube decreases by 2%, the bu...
A: D
Q: The values of the biological signals from 3 separate sensors before the amplifier are known as: V1 =...
A: Since the output voltage Vo of the Op.amp is positive so it is a non-inverting amplifier, and the in...
Q: Which of the following has body centered cubic structure? a) Polonium b) Copper c) Nickel d) Tungste...
A: D
Q: A 20cm long capillary tube is dipped in water. The water rises up to 8cm. If the entire arrangement ...
A: 20 cm
Q: Determine the Hamiltonian and Hamilton’s equations of motion for (a) a simple pendulum and (b) a sim...
A: The objective is to determine the Hamiltonian and Hamilton’s equations of motion for the following ...
Q: Woollen clothes keep the body warm because of wool ___________a) Is a bad conductorb) Increases the ...
A: A
Q: Which of the following parameters does not characterize the thermodynamic state of matter? a) Temper...
A: C
Q: A loop of wire is rotating around its vertical axis at an angular speed ω in a uniform magnetic fiel...
A: Introduction: Faraday’s law of induction is a basic law of electromagnetism that predicts how a magn...
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 constant pressure air thermometer gave a reading of 47.5 units of volume, when immersed in ice-col...
A: B
Q: What happens when you heat china having some dark paintings engraved on it at 1000°C and then examin...
A: A
Q: A car going 50mph accelerates to pass a truck. Five seconds later the car is going 80mph. Calculate ...
A: Let the initial velocity of the car be uu=50 mphAfter a time of 5 seconds, the final velocity of the...
Q: Which of the following is more close to a black body? a) Blackboard paint b) Green leaves c) Black h...
A: QUESTION: Which of the following is more close to a black body? OPTIONS: a) Blackboard paint b) Gr...
Q: Using superposition, find the total voltage over the 2 ohm resistor.
A: Considering the effect of voltage source alone (replacing the current source with open).The circuit ...
Q: The outer ends of two bars A and B are at 100°C and 50° respectively. Calculate the temperature at t...
A: A
Q: If 1g of steam is mixed with 1g of ice, what is the resultant temperature of the mixture? a) 270° b)...
A:
Q: Which of the following affects the elasticity of a substance? a) Hammering and annealing b) Change i...
A: D
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: Imagine a new planet having the same density as that of earth but it is 3 times bigger than the eart...
A: D
Q: The angular momentum of a body is 3.14 is and its rate of revolution is 10 cycles per second. Calcul...
A: D
Q: How do I determine the maximum voltage on a capacitor? I'm given the area (10 cm2) and separation (1...
A: Given that the capacitor with side 10cm has area of capacitor and distance between the plates is, A=...
Q: A body weighed 250N on the surface. Assuming the earth to be a sphere of uniform mass density, how m...
A: Option
Q: what current density will produce the vector potential A =ks? o wher k is constant in cylindrical co...
A:
Q: Please help. This problem involves finding the acceleration of masses attached to pulleys. Thank you...
A: The tensions in the ropes are overlaid in the diagram below, Choosing downwards to be the positiv...
Q: What is the area of a rectangle whose electric flux is 43 C^2/Nm^2 and electric field of 84nN/C
A: Given, Electric flux ϕ=43 N*m2/Celectric field E=84 n N/C
Q: A green glass heated in a furnace when taken out in dark glows red. a) False b) True
A: B
Q: a satellite revolves very near to the earth surface. its speed should be around? a) 5km/ b) 8km/ c) ...
A: Option b
Q: Ship A sails from A to B, on a bearing of 330° for a distance of 24km. Ship B sails from A to C on a...
A: Let l1 and l2 denote the distances, α and β denote the bearing of the points B and C from point A, a...
Q: The centre of mass of a body should lie inside the body. a) True b) False
A: B
Q: Suppose that k = 170 N/m . (Figure 1) Part A Determine the unstretched length of DB to hold the 40-k...
A:
Q: Which of the following retain their relative positions even when they move under the action of an ex...
A: Option c
Q: A faulty thermometer has its fixed points marked as 5° and 95°. The temperature of a body as measure...
A: A faulty thermometer has its fixed points marked as 5° and 95°. The temperature of a body as measure...
Q: In a hand driven grinding machine, the handle is put _____________ a) Perpendicular to the stone b) ...
A: Option
Q: If two soap bubbles of different radii are connected by a tube ___________ a) Air flow from the bigg...
A: C
Q: Why are the glasses of building milky? a) Because of unwanted deposits b) Because it becomes old c) ...
A: D option
Q: suppose we have a cornot engine running between a temp of 100 degrees C and 0 degrees C. Of we extra...
A:
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