Description : __________ forces act on a particle moving through a stationary fluid (A) Gravity (B) Drag (C) Buoyant (D) All (A), (B), & (C)
Last Answer : (D) All (A), (B), & (C)
Description : Two hockey pucks, of unequal mass and connected by a spring of negligible mass, rest on a horizontal frictionless surface. The spring is released, and the pucks move apart. The center of mass of ... the direction of the greater mass y) remain stationary z) move in the direction of the smaller mass
Last Answer : ANSWER: Y -- REMAIN STATIONARY
Description : What is the nature of velocity versus time in the case of an object moving at a steady acceleration from a stationary position ?
Last Answer : In the case of an object moving at a steady acceleration from a stationary position, the velocity versus the time line will be a straight line to the point.
Description : Explain why motion is created in a stationary object even though action and reaction are equal .
Last Answer : According to Newton's third law, the force of action and reaction are equal and opposite. Their gain would be nil if they acted on the same object. But in fact the force of action and reaction ... object, then there is a change of speed and acceleration. The result is motion in a stationary object.
Description : If the force exerted on an object is zero then the object will remain stationary- Explain ?
Last Answer : Zero force applied to an object means that the value of acceleration in it is zero. And since acceleration is needed to move a stable object, zero value of acceleration means that the object will remain stationary.
Description : Which one of the following statements is not correct ? (a) A surveyor's compass has two sight vanes (b) A prismatic compass has an object vane and an eye vane (c) A trough compass ... table (d) In a prismatic compass the graduations on the aluminimum disc rotate and the index remains stationary
Last Answer : (a) A surveyor’s compass has two sight vanes
Description : In HPLC, the stationary phase is made of _________ and the mobile phase is made of _________ A. Solid, liquid B. Liquid, liquid C. Liquid, gas D. Solid, gas
Last Answer : A. Solid, liquid
Description : The pressure exerted by a stationary liquid kept in a container at any point inside the liquid is known as ________ pressure. a)atmospheric b)hydrostatic c) air d)none
Last Answer : b)hydrostatic
Description : In what direction does the buoyant force on an object fully immersed in a liquid act ? -Science
Last Answer : upward direction
Description : Two forces which make up Newton's third law can A. act on same objects B. act on different objects C. not act at same time D. not act oppositel
Last Answer : act on different objects
Description : Bile, an emulsifier liquid, is made by the liver and later stored within the gallbladder and released in the duodenum. Bile is composed of bile salts, cholesterol and bile pigments. ... enzymes that break fats into simpler fatty acids and glycerol. Digestion System - Image Diversity: gallbladder
Last Answer : What is the adnexal organ of the digestive system in which bile is stored?
Description : Two forces, one with a magnitude of 3N and the other with a magnitude of 5N ,are applied to an object. For which orientations of the forces shown in t
Last Answer : Two forces, one with a magnitude of 3N and the other with a magnitude of 5N ,are applied to an object. For ... of the object the least ? A. B. C. D.
Description : While rotating an object or while opening a door or a water tap we apply a force or forces.
Last Answer : While rotating an object or while opening a door or a water tap we apply a force or forces ... for two opposite forces with different lines of action?
Description : What combination of all the forces acting on an object is?
Last Answer : that is called the net force; it is a vector sum of all theforces acting on it
Description : When equal forces are acting on one object in opposite directions are called?
Last Answer : Neutral or in equilibrium
Description : When does the object of the forces does not move?
Last Answer : If no force is applied to an object, the object will not accelerate - its velocity won't change.
Description : If the forward force on an object is equal to the forces of?
Last Answer : Feel Free to Answer
Description : What describes unequal forces acting on an object?
Last Answer : If the sum of all forces acting on one object is not exactlyzero, the forces are said to be unbalanced. In that case, theobject will accelerate.
Description : When the forces on object are balanced describe the motion of the object?
Last Answer : When the forces on an object are balanced, then they have the same effect on itas NO FORCE at all would have. That means that the object does not accelerate,and THAT means that it continues moving in a ... . One of the things it tells usis that it doesn't take ANY FORCE to keep an object moving.
Description : If an object is in a state of equilibrium, what can be said about all of the forces acting on the object?
Last Answer : ANSWER: THE SUM OF ALL FORCES ACTING ON THE OBJECT IS ZERO
Description : A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be __________ litres. (A) 448 (B) 224 (C) 22.4 (D) Data insufficient; can't be computed
Last Answer : (A) 448
Description : Pick out the wrong statement. (A) Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces (B) A hydrometer used for the determination of ... Turbulent fluid flow is characterised by the rapid fluctuation of instantaneous pressure & velocity at a poin
Last Answer : (C) In case of unsteady fluid flow, the velocity at any given point does not change with time
Description : A hydrometer indicates specific gravity by comparing the _____________. A. density of a substance in water with the density of the same substance in air B. differences in weight between water and the ... of an object in water with the buoyancy of the same object in the liquid being measured
Last Answer : Answer: D
Description : Water jet coming out of a stationary horizontal tube at speed v strikes horizontally a massive wall moving in opposite with same speed. Water come to
Last Answer : Water jet coming out of a stationary horizontal tube at speed v strikes horizontally a massive wall ... energy of water jet striking the wall is zero
Description : Stationary wave is formed by – (1) a transverse wave superposing a longitudinal wave (2) two waves of the same speed superposing (3) two waves of same frequency travelling in the same direction (4) two waves of same frequency travelling in the opposite direction
Last Answer : (4) two waves of same frequency travelling in the opposite direction Explanation: Stationary or standing waves are formed in a medium when two waves having equal amplitude and frequency moving in ... and the reflected wave. Both longitudinal and transverse types of waves can form a stationary wave.
Description : The apparent weight of a person in a lift which is moving down with uniform acceleration is _______. (1) greater than the weight when the person is stationary (2) twice the weight when the person ... than the weight when the person is stationary (4) same as the weight when the person is stationary
Last Answer : (3) less than the weight when the person is stationary
Description : A white ball of mass 1.0 kg moving with initial speed u = 0.5 m s-1 collides with stationary red ball of same mass, they move forward making angle of 90° between their paths. Their speed is A. 1 m s-1 B. 0.354 m s-1 C. 2 m s-1 D. 3 m s-1
Last Answer : 0.354 m s-1
Description : As 'Furniture' is related to 'Bench' in the same way 'Stationary' is related to what? (A) Godown(B) Room(C) Pen(D) Chair(E) Office
Last Answer : C) Pen
Description : Mark incorrect option a) RO is a stationary office of the RMS where work paper of the sections attached to it are prepared, checked and placed on record, all forms & bags. b) HRO is stationary office situated ... of RMS Dn c) SRO is situated at the same station as a Mail office. d) None of these
Last Answer : d) None of these
Description : As a source of sound approaches a stationary listener, the apparent wavelength: w) increases x) decreases y) stays the same.
Last Answer : ANSWER: X -- DECREASES
Description : In the Compton effect, a photon of wavelength l (read: lambdw) collides with a stationary electron. The wavelength of the emitted photon is: w) longer than l x) shorter than l y) the same as l z) no photon is emitted
Last Answer : ANSWER: W -- LONGER THAN l
Description : Stationary wave is formed by (1) a transverse wave superposing a longitudinal wave (2) two waves of the same speed superposing (3) two waves of same frequency travelling in the same direction (4) two waves of same frequency travelling in the opposite direction
Last Answer : two waves of same frequency travelling in the opposite direction
Description : When are collective nouns said to be plural when there is more than one of the same kind of group when there is more than one object in a group when there is more than one group when more than one act?
Last Answer : What is the answer ?
Description : Intermolecular forces in liquid are :
Last Answer : Intermolecular forces in liquid are : a. greater than gases b. less than solids c. both a and b d. greater than solids
Description : How do inter molecular forces affect the boiling point of a liquid?
Description : A drop of liquid assumes spherical shape because: (1) Intermolecular forces are strong in liquids (2) A sphere has the least surface area for a given volume (3) A sphere has the largest surface area for a given volume (4) Inter molecular forces are weak in liquids
Last Answer : (2) A sphere has the least surface area for a given volume Explanation: A drop of liquid assumes spherical shape because a sphere has the least surface area for a given volume.
Description : Explain the effect of increasing the temperature of a liquid, on intermolecular forces operating between its particles. What will happen to the viscosity of a liquid if its temperature is increased? Arrange the following in increasing order of viscosity-water, hexane, glycerine.
Last Answer : Ans. On increasing the temperature , the kinetic energy of liquid molecules increases so that it can overcome the attractive forces between the molecules and hence liquid can flow more easily i.e. viscosity decreases. Order of increasing viscosity : hexane < water < glycerine.
Description : Name two intermolecular forces that exist between HF molecules in liquid state.
Last Answer : Ans. Dipole-dipole interaction and hydrogen bonding.
Description : A spherical particle is falling slow in a viscous liquid such that Reynolds number is less than 1. Which statement is correct for this situation? (A) Inertial and drag forces are important (B) Drag ... forces are important (C) Drag force and gravitational forces are important (D) None of the above
Last Answer : (B) Drag, gravitational and buoyancy forces are important
Description : Surface tension of a liquid (A) Is due to intermolecular forces of cohesion (B) Decreases with rise in temperature (C) Is responsible for the spherical shape of an isolated liquid drop (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : A liquid would wet the solid, if adhesion forces as compared to cohesion forces are (A) Less (B) More (C) Equal (D) Less at low temperature and more at high temperature
Last Answer : Answer: Option B
Description : Which one of the following statements most accurately relates the properties of a liquid at room temperature with its vapour pressure? A A liquid with a low vapour pressure will probably have a ... with a high vapour pressure will probably have high intermolecular forces and a low boiling point.
Last Answer : A A liquid with a low vapour pressure will probably have a high surface tension and a high boiling point.
Description : Surface tension of liquids is the result of which the following: w) interaction of a liquid with its container x) unbalanced forces on the liquid's surface molecules y) adhesive forces of the liquid z) interaction of the liquid's surface molecules and the applied pressure
Last Answer : ANSWER: X -- UNBALANCED FORCES ON THE LIQUID'S SURFACE MOLECULES
Description : The noble gases have low boiling points because: w) their ionization potentials are very low x) only weak Van der Waals forces hold the atoms together y) they are produced by the fractional distillation of liquid air z) they have eight electrons in the outer shell
Last Answer : ANSWER: X -- ONLY WEAK VAN DER WAALS FORCES HOLD THE ATOMS TOGETHER
Last Answer : A sphere has the least surface area for a given volume
Description : Are branches of the Armed Forces subject to the Freedom of Information Act?
Last Answer : answer:You can request anything you want. The Air Force can pretty much decide if they want to release any nonclassified information or not. If it is classified information, it will not be released. And if ... , you many not be allowed to make or keep copies or photographs of what they let you see.
Description : When two concurrent and coplaner forces P and Q act at an angle of 180?, their resultant will be a a.moment equal to PQ b.couple c.(P-Q) d.107 dynes e.zero
Last Answer : c. (P-Q)
Description : In case forces of 1 N, 2 N, 3 N, 4 N, 5 N and 6 N act in order along the sides of a regular hexagon, the resultant will be a.21 N b.107 dynes c.2 N d.6 N e.
Last Answer : d. 6 N
Description : Three forces A, B and C of magnitudes 8 N, 12 N and 20 N acting on a particle are in equilibrim. It can be concluded that a.107 dynes b.B and C act in opposite directions c.one of the forces in non-coplaner d.A and B act at 90? e.one of the forces is non-concurrent
Last Answer : b. B and C act in opposite directions
Description : Two forces of 6 and 8 kg act at right angles to each other, the resultant force will be a.100 b.28 c.41 d.14 e.10
Last Answer : e. 10