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Ludmilka [50]
3 years ago
10

A building contractor says that a certain building foundation should support a pressure greater than 13,000 pa if the area of th

e foundation is 130 m^2 what is the max weight the building can be?
a-4.22 * 10^5 N
b-8.14 * 10^5 N
c-9.91 * 10^5 N
d-1.69 * 10^6 N
Physics
1 answer:
Bess [88]3 years ago
7 0

Answer:

d. 1.69 * 10^6 N

Explanation:

Pressure is defined as force divided by area.

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Answer:

i dont know

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A 25kg steel block rests on a horizontal steel surface. Calculate the maximum horizontal force P, that can be applied onto the b
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4 years ago
Identical objects, Object X and Object Y, are tied together by a string and placed at rest on an incline, as shown in the figure
goblinko [34]

The slope of the velocity time graph of an object moving with constant acceleration is constant

It will take approximately <u>3 seconds</u> for the center of mass of Object X to reach point J near the bottom of the incline

The reason why the above time value is correct is given as follows:

Known parameters:

Initial velocity of the objects, u = 0

The graph  in the question is a straight line graph with data points

(0, 0), (0.5, 1.0), (1.0, 2), (3.0, 6), and (3.5, 7)

Given that the slope of the velocity-time graph is constant, we have that the acceleration is constant and is given as follows;

a = \dfrac{\Delta v}{\Delta t } = \dfrac{v_2 - v_1}{t_2 - t_1}

Therefore;

a =  \dfrac{6 - 2}{3.0 - 1.0} = 2

The acceleration, a ≈ 2 m/s²

The distance from the center of mass of the Object X to the point J near the bottom = 9 m

The equation for distance travelled is given as follows;

s = u\cdot t + \dfrac{1}{2} \cdot a \cdot t^2

Which gives;

9 =  0\times t + \dfrac{1}{2} \times 2 \times t^2 = t^2

t = √9 = 3

The time it will take the center of mass of Object X to reach point J near the bottom of the incline is t = <u>3 seconds</u>

Learn more about motion under constant acceleration here:

brainly.com/question/16391598

6 0
3 years ago
In contact forces, _____.
lbvjy [14]
Answer: B

Explanation:
8 0
3 years ago
Read 2 more answers
. Calculate the work done by an elevator as it lifts 12 occupants up 21 floors (76.8 meters) at a constant speed. The average ma
ratelena [41]

Answer:

W = 4832

Explanation:

Given:

Force = 62.8 Kg

Distance = 76.8 m

Find :

work done = ?

Formula :

W = Fd

Solution:

W = Fd

W =(62.8 kg)(76.8 m)

   = 4832 J

6 0
3 years ago
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