Answer:
d) 2 1/2
Step-by-step explanation:
if you make 5/2 a mixed number, you get 2 1/2
Answer:
![5.22\cdot 10^5 Pa](https://tex.z-dn.net/?f=5.22%5Ccdot%2010%5E5%20Pa)
Step-by-step explanation:
The pressure exerted by an object is given by:
![p=\frac{F}{A}](https://tex.z-dn.net/?f=p%3D%5Cfrac%7BF%7D%7BA%7D)
where
F is the magnitude of the force
A is the area of the surface perpendicular to the force
In this problem, the force is the weight of the books + the shelf, which is given by
![F=mg](https://tex.z-dn.net/?f=F%3Dmg)
where
m = 262 kg is the total mass
is the acceleration of gravity
Substituting,
![F=(262)(9.8)=2568 N](https://tex.z-dn.net/?f=F%3D%28262%29%289.8%29%3D2568%20N)
The area of the four legs is:
![A=4(3.0 cm\cdot 4.1 cm)=4(12.3 cm^2)=49.2 cm^2 = 49.2\cdot 10^{-4} m^2](https://tex.z-dn.net/?f=A%3D4%283.0%20cm%5Ccdot%204.1%20cm%29%3D4%2812.3%20cm%5E2%29%3D49.2%20cm%5E2%20%3D%2049.2%5Ccdot%2010%5E%7B-4%7D%20m%5E2)
Therefore, the pressure exerted on them is:
![p=\frac{F}{A}=\frac{2568}{49.2\cdot 10^{-4}}=5.22\cdot 10^5 Pa](https://tex.z-dn.net/?f=p%3D%5Cfrac%7BF%7D%7BA%7D%3D%5Cfrac%7B2568%7D%7B49.2%5Ccdot%2010%5E%7B-4%7D%7D%3D5.22%5Ccdot%2010%5E5%20Pa)
That makes no sense, you can't have half of a penny.
Answer:
PQ= <em><u>1</u></em><em><u>0</u></em>
Step-by-step explanation:
To find intersection of the line ,put y=0 in the equation,cuz points on x axis have ordinate equals to '0'
you have, y=2x+8 ; put y =0,to find it's intersection to x-axis
i.e, 0=2x+8
i.e, 2x= -8
i.e, x= -8/2
i.e, x= -4
Point P is (-4,0)
again, you have y=2x-12, put y=0
i.e,0= 2x-12
i.e, 2x=12
i.e, x=6
Point Q is (6,0)
now distance PQ is
√(6-(-4))^2 +(0-0)^2
i.e, √(10)^2
i.e, 10
distance btwn PQ is 10 unit!
✌️:)
Answer:
what is the question
Step-by-step explanation: