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tankabanditka [31]
3 years ago
13

Calculate the pressure on a man’s foot when a woman of mass 65 kg steps on his foot with her heel which has an area of 0.12m2 wi

th all her weight.
Physics
1 answer:
tino4ka555 [31]3 years ago
4 0

Answer:

Pressure = force/area

= 650N/0.12m^2

= 5416.7 to 1 d.p

I got 650N by taking the gravitational field on earth to be 10N/kg.

Weight = mass x gravitational field

= 65 x 10N/kg

= 650

Answer is 5416.7 pascals (Pa)

Or

5308.3 Pa

if gravitational field was taken to be 9.8N/kg

Hope this helps!

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Some cities now implement signal lights designed to specifically apply to _____ rather than motorized vehicles.
dimulka [17.4K]

The correct answer is C; Bicycles.

Further Explanation:

In major cities, in the United States, have implemented signal lights specifically designed for bicycle riders. The riders also have their own designated bike lanes in many large cities. Drivers in vehicles, are to give the right of way to people on bicycles.

Bicycle riders are to follow the same laws and laws specifically for the riders or they can face fines and tickets.

Learn more about bicycle laws at brainly.com/question/8934107

#LearnwithBrainly

7 0
3 years ago
Round the following numbers.
crimeas [40]

Answer:

(a) 123.517 to 2 decimal places = 123.52

(b) 14.328 km/hr to 1 decimal place = 14.3

(c) 0.00934 m to 3 decimal places = 0.009

Explanation:

a. 123.517 to 2 decimal places

⇒ to 2 decimal places = 123.52 ( round 7 to 1 since it is up to 5 and add it to 1 before it.)

b. 14.328 km/hr to one decimal place.

⇒ to 1 decimal place = 14.3 (round 8 to 1 since it is up to 5 and add it to 2 before it, the 2 becomes 3, round the 3 to 0 since it is less than 5)

c. 0.00934 m to 3 decimal places.​

⇒ to 3 decimal place = 0.009

8 0
3 years ago
A 60 kg Gila monster on a merry-go-round is traveling in a circle with a radius of 3 m, rotating at a rate of 9 revolutions/minu
Yanka [14]

PART A)

mass of the monster = 60 kg

radius = 3 m

frequency = 9 rev/min = 9/60 rev/s

now we can find the angular speed as

\omega = 2 \pi f

\omega = 2 \pi (9/60) = 0.94 rad/s

now the acceleration is given by

a_c = \omega^2 R

a_c = (0.94)^2(3) = 2.66 m/s^2

PART B)

now as per Newton's law we have

F_c = ma_c

from above all values we have

F_c = 60(2.66) = 159.9 N

Part C)

now monster moves inside at radius R = 1 m

so now centripetal acceleration is given as

a_C = \omega^2 R

a_C = 0.94^2(1) = 0.88 m/s^2

now the force experience by monster

F_C = ma_C

F_c = 60(0.88) = 52.8 N

5 0
3 years ago
A dog whose paw has an area of 12.0 cm2 has a mass of 8.0 kg. What is the average pressure ( in kPa) the dog exerts while standi
Pavel [41]
Im sorry but i really dont understand your question can you rephrase it 
3 0
4 years ago
A banana is fired from a cannon on the ground just as a monkey starts to fall from a tree. The monkey catches the banana in mida
Lady bird [3.3K]

Here banana is fired from the canon towards the monkey with certain velocity

while at the same instant when banana is fired money starts to fall from the tree

So here when monkey is in the mid air he catches the banana

It is possible because in the same interval of time when the monkey cover some distance from the tree towards ground then in the same time banana cover the distance from ground towards monkey

So they meet at some point in the mid air

So here since both are moving free in air so they both must have same vertical acceleration

this is acceleration due to gravity

so here correct answer will be

C. The banana and monkey had the same acceleration.

7 0
3 years ago
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