1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vichka [17]
2 years ago
12

When you stand up on your feet your feet cover an area of about 0.2 m2. Your feet push on the ground with a pressure of 50 lbs f

or each foot . What is your weight? (Hint: Weight is a force. )
Use the formula Pressure = Force / Area to solve the following problems.
Physics
1 answer:
SSSSS [86.1K]2 years ago
7 0

Answer:

135 pounds

Explanation:

and no i didn't copy from the other answer...

maybe i did...

You might be interested in
The energy released by the exploding gunpowder in a cannon propels the cannonball forward. Simultaneously, the cannon recoils. T
Lelechka [254]

Answer:

the launched cannonball

Explanation:

4 0
3 years ago
Why can’t we see black holes? Question 11 options: A.Because they don't want to be seen. B.Because the sun is too far away from
Vika [28.1K]

We can't see black holes because D) no light can get out

Explanation:

Black holes are the result of the gravitational collapse of a supermassive star.

The life of a supermassive star ends with a huge explosion, called supernova, that leaves behing a super-dense core called black hole.

Black holes are the most dense objects of the universe, having a huge mass in a super small size. For this reason, the gravitational force exerted by a black hole in its proximity is so strong that even light is not able to escape from the gravitational field. For this reason, light from a black hole is not able to reach us, and so we are not able to see these objects.

The "edge" of space beyond which light remains "trapped" inside the black hole is called event horizon, and no object can escape this region of space.

The radius of the event horizon of a black hole is called Schwarzschild radius and it is given by:

r=\frac{2GM}{c^2}

where

G is the gravitational constant

M is the mass of the black hole

c is the speed of light

Learn more about space:

brainly.com/question/2887352

brainly.com/question/10934170

#LearnwithBrainly

6 0
3 years ago
What is the average speed of a bird that flies 1.55 km in 30 minutes
Alexxandr [17]

Answer:

the average speed in annual work out is 46.5

5 0
3 years ago
A horizontal force of magnitude 46.3 n pushes a block of mass 4.14 kg across a floor where the coefficient of kinetic friction i
IrinaVladis [17]
A) Calling F the intensity of the horizontal force and d the displacement of the block across the floor, the work done by the horizontal force is equal to
W=Fd = (46.3 N)(4.25 m)=196.8 J

b) The work done by the frictional force against the motion of the block is equal to:
W_f =  -F_f d =- (\mu mg) d =-(0.609)(4.14 kg)(9.81 m/s^2)(4.25 m)=
=-105.1 J
Part of these 105.1 Joules of work becomes increase of thermal energy of the block (\Delta E_B), and part of it becomes increase of thermal energy of the floor (\Delta E_F). We already know the increase in thermal energy of the block (38.2 J), so we can find the increase in thermal energy of the floor:
\Delta E_F = 105.1 J - \Delta E_B = 105.1 J-38.2 J=66.9 J

c) The net work done on the block is the work done by the horizontal force F minus the work done by the frictional force (the frictional force acts against the motion, so we must take it with a negative sign):
W_{net}=W-W_f=196.8 J-105.1 J=91.7 J
For the work-energy theorem, the work done on the block is equal to its increase of kinetic energy:
W_{net} = \Delta K
So, we have \Delta K=+91.7 J


5 0
3 years ago
A man walks 15 meters in 15 seconds. what is his speed​
ddd [48]

Answer:

1 meter per second

Explanation:

Every second, he walks 1 meter because 15 ÷ 15 = 1

3 0
3 years ago
Other questions:
  • Nuclear decay occurs according to first-order kinetics. Cobalt-60 decays with a rate constant of 0.131 years−1. After 5.00 years
    9·1 answer
  • What kind of image does the lens in a camera produce?
    14·1 answer
  • A medicine ball has a mass of 5 kg and is thrown with a speed of 2 m/s. what is its kinetic energy?
    8·1 answer
  • Talk to a financial planner or an insurance agent about the financial difficulties faced by people who lack adequate home and au
    14·1 answer
  • A5 kg box slides 3 m across the floor before coming to rest. What is the coefficient of kinetic friction between the floor and t
    5·1 answer
  • Kepler's 3rd law: harmonic law
    5·1 answer
  • 1-A boy rolls a toy car across a floor with a velocity of 3.21 m/s. How long does it take the car to travel a distance of 4.50 m
    11·1 answer
  • The water behind Grand Coulee Dam is 1000 m wide and 200 m deep. Find the hydrostatic force on the back of the dam. (Hint: the t
    10·1 answer
  • GIVEAWAY IMAKE SURE YOU SAY TY! ILL GIVE MORE IF DO
    5·2 answers
  • How did Niels Bohr create the Atomic theory
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!