According to Hooke’s law of elasticity, if stress is increased, the ratio of stress to strain? a) Increased b) Decreased c) Becomes zero d) Remains constant
Q: Which of the following is an example of inelastic collision? a) Collision between two vehicles b) Co...
A: D
Q: The momentum of a body of mass 5kg is 500kgm/s. Find its kinetic energy? a) 2×105 J b) 2.5×104 J c) ...
A: Option c
Q: What is the mass of a body that weighs 1N at a [place where g = 9.80m/s]? a) 0kg b) 1.02kg c) 0.102k...
A: Given: The weight of the body is W=1 N. The acceleration due to gravity is g=9.80 m/s2. The formul...
Q: 9. A car drives to the north, but it speeds up. Which direction does its acceleration point? Explain...
A: The car is moving towards the north and speeding up. We need to find the direction of acceleration.
Q: When a gas filled in a cylinder fitted with a movable piston is allowed to expand, the work done by ...
A: Correct Option - a) True
Q: -20 - S2
A: Given: The diagram is as follows: Introduction: Electric flux is the rate of flow of the electric f...
Q: Please show formulas. I need help with part d, e, and f.
A: Transverse Waves Transverse waves are a type of wave where the particles in the wave oscillate perpe...
Q: A football quarterback is moving straight backward at a speed of 2.00 m/s when he throws a pass to a...
A:
Q: Question 3) As shown in the figure, a block with a mass of 0.8kg is attached to the end of a spring ...
A:
Q: A heavenly body revolves around a massive star in a highly elliptical orbit. Ignoring mass loss of t...
A: D
Q: y 0 |= 1.2 m A pendulum consisting of a light string and an object (mass 2 kg) is released from a ho...
A: The conservation of energy states that energy can neither be created nor be destroyed, it can only b...
Q: How many propellers are there in a helicopter? a) One b) No propellers c) Three d) Two
A: D
Q: (P2) Suppose two students are memorizing the elements on a list according to the rate of change equa...
A: Given that the rate of learning is, dLdt=0.51-L (1) Where L represents the fraction of list t...
Q: A body weighed 250N on the surface. Assuming the earth to be a sphere of uniform mass density, how m...
A: Option
Q: A flywheel is attached to an engine to ___________ a) Increase its speed b) Decrease its speed c) He...
A: C
Q: If the density of the planet is doubled without any change in its radius, how does g change on the p...
A: D
Q: Two forces are applied to an object as shown. Using F = 23.N, ¢1 = 46°, F2 = 42_N, and o, = 21°m, fi...
A:
Q: What will be the length of a mercury column in a barometer tube, when the atmospheric pressure is 75...
A: B
Q: Which type of elasticity is involved in tangential push on the upper face of a block? a) Bulk modulu...
A: C
Q: An athlete in the Olympic game covers a distance of 100m in 10s. His kinetic energy can be estimated...
A: D
Q: There is no atmosphere on the moon, because ___________ a) It is closer to the earth and also it has...
A: D
Q: According to the figure, since r=-0,14, k=4,61, E 16,91 (@ medium boundary) and reflected electric f...
A: The reflection coefficient Γ is given by, Γ=ErEi (1) Given that Γ=-0.14 and |Ei|=16.91 pluggi...
Q: You are working as an intern for a meteorological laboratory. You are out in the field taking measur...
A:
Q: A 35 kg block is at rest on an inclined plane at 13". What is the magnitude of the normal force on t...
A:
Q: A block of mass 5 kg has a speed of 2 m/s at a height h above a spring (spring constant k = 1000 N/m...
A: Given : Mass of the block, m = 5 kg Speed of the block, v = 2 m/s Spring constant, k = 100...
Q: Thank you!
A:
Q: A cylinder rolls up an inclined plane, reaches some height and then rolls down (without slipping thr...
A: Whether the cylinder rolled up or down, the centre of mass and hence the point of contact of the cyl...
Q: At 30 °C and 8200 Pa absolute pressure Argon gas is filled in a volume of 0.80 m' cylindrical tank. ...
A: According to the ideal gas equation: PV = nRT where, P is the pressure of the gas, V is the volume o...
Q: A body weighs more at the poles than at the equator. a) True b) False
A: A
Q: A constant pressure air thermometer gave a reading of 47.5 units of volume, when immersed in ice-col...
A: B
Q: What is the lattice constant for FCC crystal having atomic radius 1.476 Å?a) 1.476 Åb) 4.1748 Åc) 5....
A: B
Q: A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same...
A: Option b correct
Q: The bulb of one thermometer is spherical, while that of other is cylindrical. If both of them have a...
A: B
Q: An unknown hot metal at 147.87°C with a mass of 46.89g was mixed with 38.11g of water at an initial ...
A:
Q: The kinetic energy acquires by a mass m in travelling distance d, starting from rest, under the acti...
A: Option b
Q: (a) Why are gases more easily compressed than liquids?(b) Why do liquids have a greater ability to f...
A:
Q: help... (Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermochemic...
A: Given Water vapor = 327.6 atm Temperature = 776.4 K Density = 133.2 kg/m3 TC ...
Q: can you help me please?
A:
Q: A solid sphere of radius R is placed on smooth horizontal surface. A horizontal force F is applied a...
A: D
Q: How much current, in mA, flows through the resistor labeled R2? The battery shown provides a potenti...
A:
Q: An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 oC and rejects hea...
A: as refrigerator work on carnot cycle so its efficiency would be maximum efficiency of carnot cycle ...
Q: Two particles A and B, initially at rest, move towards each other under mutual force of attraction. ...
A: Option
Q: A potential difference of 13 V is found to produce a current of 0.39 A in a 3.6 m length of wire wit...
A: (a) Let V be defined as the potential difference and I be defined as the current. Let R be defined a...
Q: A body of mass 2kg begins to slide down a plane inclined at an angle of 45° with the horizontal. The...
A: Option a correct
Q: The moment of inertia of a body about a given axis is 1.2kgm2. Initially, the body at rest. In order...
A: C
Q: Advanced Physics Question
A: The mechanical energy for the roller coaster at the top can be calculated as below,
Q: When a cat falls from a height _____________ a) It sustains injury b) It dies c) It lands on its fee...
A: C
Q: Question attached
A: The initial amount of thorium-230 in the rock is given as, Ao = 25 g The final amount if thorium-230...
Q: What will happen to the elastic property of Gold when Potassium is added to gold? a) The elastic pro...
A: The addition of impurities causes variation in the elastic property of materials. Potassium when add...
Q: Assuming the earth to be a sphere of uniform mass density, how much would a body weigh half way down...
A: Option
According to Hooke’s law of elasticity, if stress is increased, the ratio of stress to strain?
a) Increased
b) Decreased
c) Becomes zero
d) Remains constant
Step by step
Solved in 2 steps