Speed is unchanged because work done on an object is

A. zero

B. positive

C. negative

D. infinite

1 Answer

Answer :

zero


Related questions

Description : Gravitational potential is always A. infinite B. zero C. positive D. negative

Last Answer : negative

Description : If frequency of modulated wave is less than frequency of carrier wave, then input signal is A. negative B. positive C. zero D. infinite

Last Answer : negative

Description : If the plates of capacitor are oppositely charged then the total charge is equal to A. negative B. positive C. zero D. infinite

Last Answer : zero

Description : If we have a positive and a negative charge, then force between them is A. positive B. negative C. zero D. infinite

Last Answer : . negative

Description : Cross elasticity of demand between petrol and car is - (1) infinite (2) positive (3) zero (4) negative

Last Answer : (4) negative Explanation: In economics, the cross elasticity of demand or cross-price elasticity of demand measures the responsiveness of the demand for a good to a change in the ... denotes two products that are complements, while a positive cross elasticity denotes two substitute products

Description : In the case of an inferior good, the income elasticity of demand is : (1) Zero (2) Negative (3) Infinite (4) Positive

Last Answer : (2) Negative Explanation: A negative income elasticity of demand is associated with inferior goods; an increase in income will lead to a fall in the demand and may lead to changes to more luxurious ... demand is associated with normal goods; an increase in income will lead to a rise in demand.

Description : Cross-price elasticity of demand between tea and coffee is (a) negative (b) positive © zero (d) infinite

Last Answer : (b) positive

Description : In the case of an inferior good, the income elasticity of demand is : (1) Zero (2) Negative (3) Infinite (4) Positive 

Last Answer : Negative

Description : Cross elasticity of demand between petrol and car is (1) infinite (2) positive (3) zero (4) negative

Last Answer : negative

Description : The work done by a friction force is: w) always positive x) always negative y) always zero z) either positive or negative depending upon the situation. 

Last Answer : ANSWER: X -- ALWAYS NEGATIVE

Description : Momentum of two objects moving with same speed but in opposite direction upon collision is A. increased B. decreased C. is zero D. is infinite

Last Answer : is zero

Description : Which of the following is the work done for a closed reversible isometric system?  a. negative  b. positive  c. zero  d. undefined

Last Answer : zero

Description : What is the value of the work done for a closed, reversible isometric system?  a. zero  b. positive  c. negative  d. positive or negative

Last Answer : zero

Description : What is the value of the work done for a closed, reversible isometric system?  A. Zero  B. Positive  C. Negative  D. Positive or negative

Last Answer : Zero

Description : In case of Complementary goods cross elasticity of demand will be (a) Negative (b) Zero (c) Unitary (d) Infinite

Last Answer : (a) Negative

Description : The focal length of a plane mirror is (1) Positive (2) Negative (3) Zero (4) Infinity

Last Answer : (4) Infinity Explanation: A plane mirror is a mirror with a flat reflective surface. The focal length of a plane mirror is infinity. Its optical power is zero.

Description : In frequency modulation, amplitude of modulated wave is A. positive B. negative C. constant D. zero

Last Answer : constant

Description : Gravitational potential is always A. positive B. negative C. zero D. infinity

Last Answer : negative

Description : If the gradient of a graph is negative, then the acceleration is A. positive B. negative C. zero D. 1

Last Answer : negative

Description : For an electromagnetic wave traveling in a vacuum, if the magnitude of the intensity of the E field is zero, the magnitude of the intensity of the B field is: w) zero x) a negative maximum y) a positive maximum z) the square root of 2 times the positive maximum

Last Answer : ANSWER: W -- ZERO

Description : A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: w) constant x) varying as one over r squared y) decreasing as one moves from the positive to the negative plate z) zero

Last Answer : ANSWER: W -- CONSTANT

Description : Which among the following is false about work? (1) If displacement is zero, work is zero (2) Work done can be negative (3) It is a vector quantity (4) Its unit is Joule

Last Answer : (3) It is a vector quantity Explanation: Vector, in physics, a quantity that has both magnitude and direction. For example, displacement, velocity, and acceleration are vector quantities, while speed (the magnitude of velocity), time, and mass are scalars.

Description : If a material object moves with the speed of light ‘c’ its mass becomes a) equal to its rest mass b) Four times of its rest mass c) Double of its rest mass d) Infinite

Last Answer : d) Infinite

Description : For an infinite sheet of positive charge, the electric field lines: w) run parallel to the sheet of charge x) are perpendicular to the sheet of charge and point in toward the sheet y) are perpendicular to the sheet of charge and point away from the sheet z) fall off as one over r squared

Last Answer : ANSWER: Y -- ARE PERPENDICULAR TO THE SHEET OF CHARGE AND POINT AWAY  

Description : The weight of a body at the centre of earth is: (1) half the weight at the surface (2) zero (3) twice the weight at the surface (4) infinite

Last Answer : (2) zero Explanation: Weight of a body is the force with which it is attracted towards the centre of earth. The weight of a body, 'w' of mass `m' is given by: W = mg, where `g is the acceleration due ... of earth, value of 'g' is zero. Therefore, weight of a body is zero at the centre of the earth.

Description :  Mass of satellite orbiting Earth is A. considered B. irrelevant C. should be infinite D. should be zero

Last Answer : should be infinite

Description : As long as op-amp is not saturated, the potential difference between inverting and non-inverting inputs is A. zero B. infinite C. 1 D. 2

Last Answer : zero

Description : Impedance of ideal op-amp is A. zero B. 1 C. infinite D. 2

Last Answer :  infinite

Description : At all the points the uniform fields have A. different strength B. same strength C. zero strength D. infinite strength

Last Answer : same strength

Description : Bit on left hand side has A. lowest value B. zero value C. highest value D. infinite value

Last Answer : highest value

Description : If the capacitors are connected in parallel, then the potential difference across each capacitor is A. same B. different C. zero D. infinite

Last Answer : same

Description : If charge stored on plates of capacitor is large, then capacitance will be A. small B. large C. zero D. infinite

Last Answer : large

Description : If charge is placed at infinity, it's potential is A. zero B. infinite C. 1 D. -1

Last Answer : zero

Description : The weight of a body at the centre of earth is: (1) half the weight at the surface (2) zero (3) twice the weight at the surface (4) infinite

Last Answer : zero

Description : The speed at which the shaft runs so that the additional deflection of the shaft from the axis of rotation becomes ___________, is known as critical or whirling speed. (A) zero (B) minimum (C) maximum (D) infinite

Last Answer : (D) infinite

Description : Light has wavelength, frequency, and speed. Which, if any, of these quantities remains unchanged when light passes from a vacuum into a block of glass?

Last Answer : ANSWER: FREQUENCY

Description : When there is an equal amount of positive and negative charges on an object what is the net charge of the object?

Last Answer : Feel Free to Answer

Description : Explain the velocity-tune graphs of an object: i) Moving with zero acceleration.  ii) Moving with constant positive acceleration. 

Last Answer : Explain the velocity-tune graphs of an object: i) Moving with zero acceleration. ii) ... acceleration. iv) Moving with non-uniform acceleration.

Description : Q: Is zero a positive or a negative number? -General Knowledge

Last Answer : None of the two mentioned above

Description : A particle of mass m is moving along a straight path through the origin of coordinates with a velocity v. The angular momentum of the particle about the origin (a) mv (b) Depends on its distance from origin (c) Is zero (d) Changes from positive to negative as it passes through the origin

Last Answer : Ans:(c)

Description : The electron affinity for the inert gases is (a) Zero (b) High (c) Negative (d) Positive

Last Answer : Ans:(a)

Description : If two commodities are complements, then their crossprice elasticity is- (1) zero (2) positive (3) negative (4) imaginary number

Last Answer : (4) imaginary number Explanation: In economics, the cross elasticity of demand or cross-price elasticity of demand measures the responsiveness of the demand for a good to a change in ... denotes two products that are complements, while a positive cross elasticity denotes two substitute products.

Description : If total utility is maximum at a point, then marginal utility is - (1) positive (2) zero (3) negative (4) positive but decreasing

Last Answer : (2) zero Explanation: Marginal utility of a good or service is the gain (or loss) from an increase (or decrease) in the consumption of that good or service. As the rate ... increase in consumption of units of commodities causes marginal utility to become negative; this signifies dissatisfaction.

Description : The total energy of revolving electron in an atom – (1) cannot be negative (2) can have any value above zero (3) can never be positive (4) will always be positive

Last Answer : (3) can never be positive Explanation: The total energy of a revolving electron in any orbit is the sum of its kinetic and potential energies. Energy of an electron at infinite distance from the ... and the energy of electron decreases and thus becomes negative. Thus, it can never be positive.

Description : If a 6 volt battery were connected in series with a 24 volt battery by putting their negative terminals together, what would be the result? A. 'Zero' volts B. 12 volts of the opposite polarity C. 18 volts, positive on the 24 volt battery D. 30 volts, negative on the 24 volt battery

Last Answer : Answer: C

Description : What is meant by positive, negative and zero sequence reactance.

Last Answer : The reactance diagram of a power system, when formed using positive, negative and zero sequence reactances are called positive, negative and zero sequence reactance diagram resp.

Description : What is meant by positive, negative and zero sequence impedance.

Last Answer : The impedance of the circuit element for positive, negative and zero sequence component currents are called positive, negative and zero sequence impedances resp.

Description : Price movement between two Information Technology stocks would generally have a  co-variance. A. zero B. positive C. negative

Last Answer : B. positive

Description : What you mean by positive sequence, negative sequence and zero sequence of voltage?

Last Answer : Positive phase sequence A system of vectors is said to have positive sequence if they are all of equal magnitude and are displaced by 120° with same time interval to arrive at fixed axis of reference ... in all the 3- phases. Such phase sequence is zero phase sequence.