Hello, I have a physics question. Thanks in advance :) Question:  To escape a burning building, Arnold has to jump from a third-story window that is about 10.0 m above the ground. Arnold is worried about breaking his leg. The largest bone in Arnold’s leg is the femur, which has a minimum cross-sectional area of about 5.00 × 10−4 m. Arnold has a mass of 93.0 kg.   If Arnold lands on the ground with his legs stiff, and if his femur can compress only about 5.00 mm, what is the compressive stress on each femur?   If Arnold lands in deep snow, then his legs can move about 30.0 cm between the time they first hit the snow and the time he comes to a complete stop. What is the compressive stress on each femur?

Q: I find a spring that is labeled "80 N/m", but it is actually 3.5 inches long. I fasten a beam…

A: The length of the spring is given to be 3.5 inches. And it has been fastened from a beam 789mm above…

Q: A 89.6-kg circus performer is fired from a cannon that is elevated at an angle of 54.2° above the…

A:

Q: A ride at an amusement park attaches people to a bungee cord, pulls them straight down to the…

A: Given data: Spring stiffness constant is, k=35 N/m. Height beyond the unloaded length is, h=100 m.…

Q: Two forces, F⃗ 1F→1F_1_vec and F⃗ 2F→2F_2_vec act at a point. F⃗ 1F→1F_1_vec has a magnitude of 8.00…

A: The x component of the resultant force is. F1x and F2x can be calculated as follows.

Q: An aircraft is equipped with a wing of symmetrical airfoils. The lift curve slope of the total a C,…

A:

Q: Determine the new velocity of the block T seconds after leaving your hand. Assume T is small enough…

A:

Q: A particle P of mass m = 0.56 kg is released from rest at a point h = 7 m above the surface of a…

A:

Q: A neighbor’s child wants to go to neighborhood carnival to experience the wild rides.  The neighbor…

A:

Q: A 70 kg person stands moderate so that his body weight is shared equally between the feet. If you…

A:

Q: 3. A bungee cord is rated at 545N/m. The jump is off a bridge above a river. Unstretched, the bungee…

A:

Q: A 480 g peregrine falcon reaches a speed of 75 m/s in a vertical dive called a stoop. If we assume…

A:

Q: A large man pushes against a horizontal panel connected to a spring. The spring has a spring…

A: Hooke's law states that the force exerted by a spring is proportional to change in its length away…

Q: Part (e) Calculate the magnitude of the angular momentum L, in kg · m2/s,of the coconut as observed…

A:

Q: A 5kg spherical container collides with a wall. The container is travelling at a velocity of 2.5m/s…

A:

Q: A block of mass 1 kg is released on an inclined plane (see the figure below). For the spring, k =…

A:

Q: You and your friends push a 400 kg piano across a hardwood floor at a constant speed. You all push…

A:

Q: A 68 kg stunt- woman falls off a bridge and travels 20.0 before colliding with a pile of mattresses.…

A:

Q: A projectile is fired at a velocity of 100 m s-¹ at an angle of 36° to the horizontal as shown…

A:

Q: In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but…

A:

Q: Your forehead can withstand a force of about 6.0 kN before fracturing, while your cheekbone can…

A:

Q: A rectangular block of metal situated on a wide flat surface is given an initial speed of 4.5 m/s.…

A: Given data: Initial velocity (v0) = 4.5 m/s Coefficient of kinetic friction (μk) = 0.025 Final…

Q: When a 6.50 kg load is hanging from the free end of a 29.0 cm long spring, the spring extends to a…

A:

Q: A block of mass 2.2 kg is sitting on a frictionless ramp with a spring at the bottom that has a…

A: Given, mass of the block, m=2.2 Kg spring constant, K=435 N/m the angle of the ramp, θ=24° distance…

Q: 134. Astronomy About 65 million years ago an aster- oid struck Earth in the area of the Yucatan…

A: (a) The diameter of the asteroid is 10 km or 10000 m, the radius of the asteroid will be 5000 m.…

Q: A slingshot, consisting of a leather pouch attached to two rubber bands which are tied to the prongs…

A: Consider the slingshot as a spring as a spring. Hence according to the conservation of energy, the…

Q: Q. 17: The work done in breaking a water drop of radius 1 cm into 64 equal droplets (surface tension…

A: To find-Workdone (W)=?Given-n=64 dropletsR=1 cm=10-2 mT=0.07 N/m

Q: A 68.3-kg circus performer is fired from a cannon that is elevated at an angle of 52.6° above the…

A: Since the velocity along the horizontal direction remains the same, the acceleration will be zero.…

Q: 1) A daredevil plans to bungee jump from a balloon 73.0 m above a carnival midway. They will use a…

A:

Q: We are going to create a model for the forces acting when climbing with mass 'm' while falling on a…

A: Given:      vy=dydt⇒d2vdt2=vdvdy From the given problem: 1. The initial speed of the climber=0 2.…

Q: A bullet (20. g) shot with a speed of 800. m/s hits an oak tree and sticks 4.00 cm inside it. What…

A: Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…

Q: A 7.1kg wooden box sits on a 2.9kg box which sits on a 3.8kg box. The 3.8kg box rests on a table top…

A: We will draw the free body diagram of each block and then calculate the normal force,

Q: The potential energy of a nitrogen atom in an ammonia (NH3) molecule varies with position as U(x) =…

A: Given potential energy U(x) = x4 - 2ax2 with a=some constant We know the relation between potential…

Q: An 20.g bullet is fired from a rifle having a barrel 0.50 m long. Choosing the origin to be at the…

A: Write the general force equation, resolve it, integrate, and solve it as follows.…

Q: Part A In a hydroelectric dam, water falls 30.0 m and then spins a turbine to generate electricity.…

A: Height, h = 30 mMass, m = 1 kgAcceleration due to gravity, g = 9.81 m/s2

Q: A 77.1-kg circus performer is fired from a cannon that is elevated at an angle of 52.1° above the…

A:

Q: Work = (Force) (Distance) = (N)(m) = J Force = (Mass) (Accleration) = (kg) (m/s²) = N Acceleration…

A: Given data: The height of cylinder is h=15 m. The diameter of cylinder is d=4 m. Density of water…

Q: As a prank, someone has balanced a pumpkin at the highest point of a grain silo. The silo is topped…

A: The angle between the line from the center of curvature of the cap to the pumpkin and the vertical…

Q: About 70 g of blood is pumped from a person's heart into the aorta during each heartbeat. The blood…

A:

Q: Before: mA = 2.00 kg mB = 3.00 kg vA = +4.00 m/s vB = 0 m/s After: mA = 2.00 kg vA = −0.800 m/s mB =…

A: The given values satisfy momentum conservation equation along single axis.  mA.vA+mB.vB = constant…

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).