How is air resistance and friction similar?

How is air resistance and friction similar?
by

1 Answer

Answer :

Need answer
by
selected by

Related questions

Vehicle will accelerate as long as A. air resistance is greater than thrust B. air resistance is greater than inertia C. thrust is greater than air resistance and friction D. friction is greater than thrust

Description : Vehicle will accelerate as long as A. air resistance is greater than thrust B. air resistance is greater than inertia C. thrust is greater than air resistance and friction D. friction is greater than thrust

Last Answer : thrust is greater than air resistance and friction

Power required for a train weighing 200 Mg to move at a uniform speed of 60 Kmph up an incline of 1 in 200 is (Resistance due to friction is negligible) a.16.67 KW b.163.5 KW c.1000 KW d.9810 KW e.Tapered bearing

Description : Power required for a train weighing 200 Mg to move at a uniform speed of 60 Kmph up an incline of 1 in 200 is (Resistance due to friction is negligible) a.16.67 KW b.163.5 KW c.1000 KW d.9810 KW e.Tapered bearing

Last Answer : b. 163.5 KW

In case of clamp coupling, power is transmitted by means of, (A) Friction force (B) Shear resistance (C) Crushing resistance (D) None of the above

Description : In case of clamp coupling, power is transmitted by means of, (A) Friction force (B) Shear resistance (C) Crushing resistance (D) None of the above

Last Answer : (A) Friction force

The resistance to the motion of the body is provided by ______ a) Medium of vibration b) Speed of vibration c) Length of the material d) External friction

Description : The resistance to the motion of the body is provided by ______ a) Medium of vibration b) Speed of vibration c) Length of the material d) External friction

Last Answer : a) Medium of vibration

In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of (A) Relative roughness (B) Absolute roughness (C) Friction co-efficient for flows at equal Reynold number (D) All (A), (B) & (C)

Description : In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said ... co-efficient for flows at equal Reynold number (D) All (A), (B) & (C)

Last Answer : (C) Friction co-efficient for flows at equal Reynold number

If you throw a ball across a field, which forces are most likely to cause it to stop? a) Inertia and Magnetism b) Friction and Gravity c) Wind resistance and magnetism d) Gravity and Inertia

Description : If you throw a ball across a field, which forces are most likely to cause it to stop? a) Inertia and Magnetism b) Friction and Gravity c) Wind resistance and magnetism d) Gravity and Inertia

Last Answer : b) Friction and Gravity

In a braking test, a vehicle travelling at 36 km ph was stopped at a braking distance of 8.0 m. The average value of the vehicle's skid resistance (friction coefficient) is (A) 0.64 (B) 6.25 (C) 0.16 (D) None of these

Description : In a braking test, a vehicle travelling at 36 km ph was stopped at a braking distance of 8.0 m. The average value of the vehicle's skid resistance (friction coefficient) is (A) 0.64 (B) 6.25 (C) 0.16 (D) None of these

Last Answer : Answer: Option C

Scouring will occur as long as a) Frictional resistance at soil tool interface is less than the resistance at parallel soil-soil inter face b) Frictional resistance at soil tool interface is more than the resistance at parallel soil-soil inter face c) Soil-metal friction is more than angle of soil shearing resistance d) None of the above

Description : Scouring will occur as long as a) Frictional resistance at soil tool interface is less than the resistance at parallel soil-soil inter face b) Frictional resistance at soil tool interface is more than ... c) Soil-metal friction is more than angle of soil shearing resistance d) None of the above

Last Answer : a) Frictional resistance at soil tool interface is less than the resistance at parallel soil-soil inter face

Force ( including rolling resistance friction ) that acts upon the stabilising surfaces such landslide and sole of bottom are called a) Useful soil resistance b) Parasitic force d) Draft of implement. d) Pull of implement

Description : Force ( including rolling resistance friction ) that acts upon the stabilising surfaces such landslide and sole of bottom are called a) Useful soil resistance b) Parasitic force d) Draft of implement. d) Pull of implement

Last Answer : b) Parasitic force

Find the friction force due to air on a body of mass 1 kg falling with acceleration `8 m//s^(2)` :-

Description : Find the friction force due to air on a body of mass 1 kg falling with acceleration `8 m//s^(2)` :-

Last Answer : Find the friction force due to air on a body of mass 1 kg falling with acceleration `8 m//s^(2)` :- A. 2 N B. 4 N C. Zero D. None

Which name is given to the type of friction that object falling through air experience?

Description : Which name is given to the type of friction that object falling through air experience?

Last Answer : air resistance

A block P released from the top of a smooth inclined plane slides down the plane. Another block Q is dropped from the same point and falls vertically downwards. Which one of the following statements will be true if the friction offered by air is negligible? (a) Both blocks will reach the ground at the same time (b) Block P will reach the ground earlier than block Q (c) Both blocks will reach the ground with the same speed (d) Block Q will reach the ground with a higher speed than block P

Description : A block P released from the top of a smooth inclined plane slides down the plane. Another block Q is dropped from the same point and falls vertically downwards. Which one of the following statements will be ... with the same speed (d) Block Q will reach the ground with a higher speed than block P

Last Answer : Ans:(c)

Air vessel provided in a reciprocating pump is for (A) Increasing the acceleration head (B) Making the friction in pipe uniform (C) Decreasing the acceleration head (D) None of these

Description : Air vessel provided in a reciprocating pump is for (A) Increasing the acceleration head (B) Making the friction in pipe uniform (C) Decreasing the acceleration head (D) None of these

Last Answer : (B) Making the friction in pipe uniform

Satellites burn off during re-entry to earth's atmosphere, because of the (A) Combustion with air (B) Gravitational pull by earth (C) Friction with earth's atmospher

Description : Satellites burn off during re-entry to earth's atmosphere, because of the (A) Combustion with air (B) Gravitational pull by earth (C) Friction with earth's atmospherch

Last Answer : Option C

Satellites burn off during re-entry to earth's atmosphere, because of the (A) Combustion with air (B) Gravitational pull by earth (C) Friction with earth's atmosphere (D) Loss in weight of the satellite

Description : Satellites burn off during re-entry to earth's atmosphere, because of the (A) Combustion with air (B) Gravitational pull by earth (C) Friction with earth's atmosphere (D) Loss in weight of the satellite

Last Answer : Option C

Why are there jets in the midlatitudes in the upper troposphere? (a) Air is warmer in the tropics than the poles, resulting in a poleward pressure gradient that increases with increasing height. (b) Because air near the surface experiences the drag of surface friction, while air in the upper troposphere does not. (c) Due to variations in temperature between continents and ocean. (d) Due to the constant bending by the Coriolis force. (e) Both A and D are correct.

Description : Why are there jets in the midlatitudes in the upper troposphere? (a) Air is warmer in the tropics than the poles, resulting in a poleward pressure gradient that increases with increasing height. (b) Because ... d) Due to the constant bending by the Coriolis force. (e) Both A and D are correct.

Last Answer : (e) Both A and D are correct.

For winds that last six hours or more, such as a midlatitude storm, the air movement is modified by which causes the air to be deflected to . (a) Hydrostatic Force; the right in the Northern Hemisphere (b) Coriolis Force; the right in the Northern Hemisphere (c) Friction; the left in the Northern Hemisphere (d) Coriolis Force; the left in the Northern Hemisphere

Description : For winds that last six hours or more, such as a midlatitude storm, the air movement is modified by which causes the air to be deflected to . (a) Hydrostatic Force; the right in the ... c) Friction; the left in the Northern Hemisphere (d) Coriolis Force; the left in the Northern Hemisphere

Last Answer : (b) Coriolis Force; the right in the Northern Hemisphere

Describe with neat diagram air friction damping.

Description : Describe with neat diagram air friction damping. 

Last Answer : Air Friction Damping: Here air trapped in the chamber works as damping medium for the piston movement connected to the spindle. The piston moves in the air chamber. The clearance between piston and ... will be the damping torque, bringing the pointer to the equilibrium position quickly. 

Air friction damping is used in the instruments which is:

Last Answer : Air friction damping is used in the instruments which is: Moving iron

How would you arrange 64 similar cells each having an emf of 2.0 V and internal resistance `2 Omega` so as to send maximum current through an external

Description : How would you arrange 64 similar cells each having an emf of 2.0 V and internal resistance `2 Omega` so as to send maximum current through an external

Last Answer : How would you arrange 64 similar cells each having an emf of 2.0 V and internal resistance ` ... current through an external resistance of `8 Omega`.

Which of the following statement(s) is/are true concerning septic shock? a. The clinical picture of gram negative septic shock is specifically different than shock associated with other infectious agents b. The circulatory derangements of septic shock precede the development of metabolic abnormalities c. Splanchnic vascular resistance falls in similar fashion to overall systemic vascular resistance d. Despite normal mechanisms of intrinsic expansion of the circulating blood volume, exogenous volume resuscitation is necessary

Description : Which of the following statement(s) is/are true concerning septic shock? a. The clinical picture of gram negative septic shock is specifically different than shock associated with ... mechanisms of intrinsic expansion of the circulating blood volume, exogenous volume resuscitation is necessary

Last Answer : Answer: d The clinical findings in sepsis and septic shock represent the host response to infection. Gram-positive and gram-negative bacteria, viruses, fungi, rickettsiae, and ... intravascular volume, exogenous volume resuscitation must be provided to restore venous return and ventricular filling