Answer:
1) The force per egg caused by the weight of the block is 17.15 N
2) ![A= 0.686\ mm^2](https://tex.z-dn.net/?f=A%3D%200.686%5C%20mm%5E2)
Explanation:
<u>Pressure</u>
The pressure is computed as the force acting upon a surface divided by the area of the surface
:
![P=\frac{F}{A}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7BF%7D%7BA%7D)
The weight of an object of mass m is:
W = mg
Where g is the gravitational acceleration of ![9.8\ m/s^2](https://tex.z-dn.net/?f=9.8%5C%20m%2Fs%5E2)
The cement block has a mass of m=14 kg, thus its weight is:
W = 14*9.8
W = 137.2 N
1) This weight is evenly distributed over the 8 eggs, thus the force per egg is:
F = 137.2 N/8= 17.15 N
The force per egg caused by the weight of the block is 17.15 N
2) It's given the pressure on each egg as
and we know the force acting on each one is F=17.15 N. To find the contact area we solve the formula of the pressure for A:
![\displaystyle A=\frac{F}{P}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20A%3D%5Cfrac%7BF%7D%7BP%7D)
![\displaystyle A=\frac{17.15}{25}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20A%3D%5Cfrac%7B17.15%7D%7B25%7D)
![\mathbf{A= 0.686\ mm^2}](https://tex.z-dn.net/?f=%5Cmathbf%7BA%3D%200.686%5C%20mm%5E2%7D)
An object or any location can be represented on a two-dimensional surface like a paper or computer screen. This representation is known as map. Most maps do not take into account the elevation of the object or the location they representing. On the other hand, Topographic maps use contour lines to represent the third dimension and to show elevation change on or below the surface of the earth.
![\huge \boxed{ \sf Solution}](https://tex.z-dn.net/?f=%20%5Chuge%20%5Cboxed%7B%20%5Csf%20%20Solution%7D)
- Mass of the truck (m) = 30000 Kg
- Velocity (v) = 25 m/s
- Let the momentum be p.
- We know, momentum = mass × velocity
- Therefore, the momentum of the truck (p)
- = mv
- = (30000 × 25) Kg m/s
- = 750000 Kg m/s
<u>Answer:</u>
<u>The momentum of the truck is 750000 Kg m/s.</u>
Hope you could understand.
If you have any query, feel free to ask.
Answer:
You need a partner in a lab, because in case you forgot something the teacher said, you can ask your partner. You can't always do everything by yourself, so if you have help next to you, they can help you so you won't struggle.
Explanation:
Answer:
x ≈ 56 m
Explanation:
vertical initial velocity =
= 25 m/s* sin(30°)= 12.5 m/s
height = h
![h =v_{0y}t+\frac{at^{2}}{2} \\\\65m = 12.5m/s*t + \frac{9.8m/s^{2}*t^{2}}{2} \\\\t=2.584 s](https://tex.z-dn.net/?f=h%20%3Dv_%7B0y%7Dt%2B%5Cfrac%7Bat%5E%7B2%7D%7D%7B2%7D%20%5C%5C%5C%5C65m%20%3D%2012.5m%2Fs%2At%20%2B%20%5Cfrac%7B9.8m%2Fs%5E%7B2%7D%2At%5E%7B2%7D%7D%7B2%7D%20%5C%5C%5C%5Ct%3D2.584%20s)
t- time is found solving quadratic equation.
horizontal velocity = ![v_{0x}=25m/s*cos(30^{o})=21.65 m/s](https://tex.z-dn.net/?f=v_%7B0x%7D%3D25m%2Fs%2Acos%2830%5E%7Bo%7D%29%3D21.65%20m%2Fs)
Horizontal velocity is constant, so distance ![x=v_{0x}*t =21.65 m/s *2.584 s=55.9 = 56 m](https://tex.z-dn.net/?f=x%3Dv_%7B0x%7D%2At%20%3D21.65%20m%2Fs%20%2A2.584%20s%3D55.9%20%3D%2056%20m)