A person can “ walk on water “ if she has the proper shoes. Assume that you use expanded polystyrene (ρ = 0.40 g/cm3 ) to construct two blocks that you will strap to your feet, with a cross section of 850 cm2 . How long will each block need to be in order to support a 65 kg person?

Q: A velocity vector is shown in (Figure 1). Figure v = (100 m/s, south) N 30° 1 of 1 Part A What is…

A: GivenThe magnitude of the velocity is v = 100 m/s.The angle  = 30o.The free diagram is shown as,

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Q: wavelengths

A: Energy of the particle in nth  state in the 1-D box is given by,wavelength corresponding to the…

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A: The position of a particle A with respect to the particle B is expressed as,…

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A: Current, I = 12 ATime, t = 0.05 s

Q: value of r

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A: Write the given values to the suitable variables.Here, h is the horizontal distance traveled.

Q: 6. Two forces, F, and F2, act on a 5.00 kg object as shown below. Taking F₁ = 20.0 N and F₂ = 15.0…

A: given two forcesF1 = 20 NF2 = 15 N

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A: Inner Diameter  = 10 m Resistivity, = 0.5 ohm. meterLength l = 5 mm =0.005m

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Q: provide answer with full explanation ( only type )

A: The circuit shown above is open circuit.Final resistor shown in the figure is open circuited.

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A: along negative x-axis

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A: The capacitance (C) of a capacitor with a dielectric material can be calculated using the formula:…

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A: Particle A has a charge that is 10 times larger than that of charge B.

Q: relative velocity c

A:

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A: .

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Q: What is the value of az, the x-component of the object's acceleration? Express your answer with the…

A: Thus x component of object acceleration is 1.05 m/s2 along negative x axis.

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Q: 15. The tension in a 3.0-m string is 75 N and its mass is 0.090 kg. What is the speed (in m/s) of…

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Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).