Nourishment is obtained from food through the inner surface area of the intestines. Why is it that a small organism, such as a worm, has a simple and relatively straight intestinal tract, while a large organism, such as a human being, has a complex and extensively folded intestinal tract?

Q: A 0.190-kg wooden rod is 1.20 m long and pivots at one end. It is held horizontally and then…

A: Given,  Mass of rod, m=0.19kg Length of rod, L=1.2m

Q: A solid cone with height 5 m5 m and base with radius 2.5 m2.5 m is built using a lightweight…

A: Height of the cone (h)=5m The radius of the cone (r)= 2.5m The density of the material used =…

Q: 1 m 1 m Im- -2 m B. 900 N-m 1.5 m

A:

Q: Why is rust a greater problem for thin iron rods than for thick iron piles?

A:

Q: Corda Peso

A:

Q: A load with a weight of 125.0Newtons is attached to a brass wire with a length of 7.5 meters.…

A: GIVEN   F=125N l= 7.5 m Y=8.96 X 10^11 Pa r=0.7 X  10^3 m

Q: Q37. Water jet of an area of cross-section 2 cm strikes the wall normally with a velocity of 20 m/s…

A: Due to the force exerted by the wall on the water, the water's velocity changes from 20m/s to zero.…

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A: They mainly lean backward to balance their centre of mass.

Q: Why is rifle bullet made cylindrical?

A: A rifle bullet is not completely cylindrical. It is a combination of cone and cylinder.

Q: A uniform ladder of length 7m and mass 15kg, rests in limiting equilibrium against a smooth vertical…

A: According to Newton's second law Net force = mass × acceleration FBD of the system

Q: A large object consists of two, flat steel plates that are welded together. The top plate has a mass…

A: Given Data : The mass of the top plate is given as m1 = 1.5 Kg. The mass of the bottom plate is…

Q: Data has been gathered from a lifting system used to trans port engine parts. The sys tem cons is ts…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

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A: Young's modulus is the mechanical property of a material tells about the stiffness of a material…

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A:

Q: What happens when the stretching force on an elastic material is released? O The material breaks. O…

A: When we apply stretching force on elastic material then its length increases. On removing the…

Q: A device used for mixing consists of three identical thin rods extending from a central axle, all in…

A:

Q: What force F is required on the handle to support the 2200 lb weight? Neglect the weight of the…

A: We know that, 1 in=0.0833 ft Given data: Specific weight of weight, γoil=55 lbft3 Load weight,…

Q: Wire Object 1 3 m Object 2 30° 7 m 1 m A homogeneous, 10 m-long beam has a total weight of 70 N and…

A: Given Data : The weight of the beam is given as W = 70 N. The weight of object 1 is given as W1 = 20…

Q: The aorta pumps blood away from the heart at about 40 cm/scm/s and has a radius of about 1.0 cmcm.It…

A:

Q: You have probably noticed that the lower the tire pressure, the larger the contact area between the…

A: The formula for  pressure is P=FA, where, P=pressure A=area

Q: An automobile tire is shown in the figure below. The tire is made of rubber with a uniform density…

A: The inner radius of the sidewall, r1=16.5 cm = 0.165 m The outer radius of the sidewall, r2=30.5 cm…

Q: A beam is connected to the floor by a hinge. A rope is attached to the other end of the beam. The…

A: Given: The angle between the rope and the horizontal = 21o Tension (T) = 190.2 N;

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A:

Q: Only with great difficulty can you crush an egg when squeezing it along its long axis, but it breaks…

A: The ends of an egg form arches. Therefore, pressing them together along the long axis will only…

Q: The diagram below shows a person standing on a plank that pivots on a log. The person intends to…

A:

Q: The following figure shows the arrangement of three uniform square laminas and each lamina measures…

A:

Q: 2m Şekil-3 The system to which a 10 m long homogeneous rod with a mass of 50 kg is connected is in…

A:

Q: Why Frictional Force Gets Increased When Two Surfaces In Contact Are Polished Beyond A Certain…

A: When two surfaces in contact are polished beyond a certain limit and made extremely smooth, they…

Q: What property of your body changes during a helicopter ride?

A:

Q: An automobile tire is shown in the figure below. The tire is made of rubber with a uniform density…

A: Convert the volume density to surface density as:

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A:

Q: A force of 500 N is exerted on the pedal cylinder. Pressure created in the pedal cylinder is…

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A:

Q: When throwing a football you are always instructed to follow-through. What is the advantage of…

A: The football has its unique shape. It has special instructions for holding for better grip, throwing…

Q: Once ski jumpers are airborne (Fig. CQ9.14), why do they bend their bodies forward and keep their…

A: Newton’s third law states that for every action, there is an equal and opposite reaction.

Q: An automobile tire is shown in the figure below. The tire is made of rubber with a uniform density…

A: in this question first of all find different moment of inertia of side wall and tread then get

Q: An unsupported object will topple over when its center of gravity a) lies outside the object. b)…

A: Center of gravity is the assumed to be the point where total weight of the is concentrated. When…

Q: when the velocity of muscle lengthening increases the force the muscle can produce: 1.) will…

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Q: A mountain-climber of mass 82 kg ponders the idea of attaching a helium-filled balloon to himself to…

A:

Q: When we say that light objects and heavy objects fall at the same rate, what assumption are we…

A: If two objects , one light and one heavy object are falling in air medium then they fill a resistive…

Q: A device used for mixing consists of three identical thin rods extending from a central axle, all in…

A: Length , r = 10.9 cm = 0.109 m Area , A = 4.4 cm2 = 4.4 x10-4 m2  Drag coefficient , D = 0.580…

Q: As part of an engineering design, a load of mass M2=10 kg is to be suspended from the far end of a…

A:

Q: The following figure shows the arrangement of three uniform square laminas and each lamina measures…

A:

Q: State, for each of the following physical quantities, if it is a scalar or a vector:  Volume, mass,…

A: State the following is a vector or scalar quantity:

Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.