calculate the contact of 100 kg object when exerts 2000pa pressure​

Answers

Answer 1
Pressure = 2000 PaMass = 100 KgWe know, Force = mass × acceleration due to gravityAcceleration due to gravity = 9.8 m/s^2Therefore, the force = (100 × 9.8) N = 980 NWe know, Pressure =[tex] \frac{Force}{Area} \\ = > Area = \frac{ Force}{Pressure} [/tex]Therefore, area of contact [tex] = \frac{980}{2000} m \: {s}^{ - 2} \\ = 0.49m \: {s}^{ - 2}[/tex]

Answer:

0.49 m/s^2

Hope you could understand.

If you have any query, feel free to ask.


Related Questions

When an object moves, stops moving, changes speed, or changes direction, how do scientists describe that condition? Question 1 options: a balanced set of forces unbalanced forces frictional force stable factors.

Answers

If an object moves, stops, changes speed, or even changes direction, then that condition represents the unbalanced force condition.

What is Unbalanced Force?

The unbalanced force is the magnitude of the net force that tends to cause the motion of objects.

It is nothing but the greater amount of force to be applied to the object to displace the object in either direction.

If an object is moving, stopping, changing the speed, or changing the direction, then such activities directly show that the object is changing its state of motion.

And the change in the motion is only caused when there is some magnitude of force associated with it.

When the magnitude of forces applied on an object such that one force is greater than another in a specific direction, then such forces are known as unbalanced forces.

Unbalanced forces cause motion, which means a body can move, stop or even can change its direction due to the unbalanced force.

Thus, we can conclude that if an object moves, stops, changes speed, or even changes direction, then that condition represents the unbalanced force condition.

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What is the kinetic energy of a block with a mass of 10 kilograms traveling at a speed of 12 m/s ? Ignore friction

Answers

Answer:

Kinetic energy is 720 Joules

Explanation:

[tex]{ \rm{kinetic \: energy = \frac{1}{2} m {v}^{2} }}[/tex]

m is massv is velocity

[tex]{ \tt{k.e = \frac{1}{2} \times 10 \times 12 {}^{2} }} \\ \\ { \tt{k.e = 720 \: joules}}[/tex]

Answer:

solution

here,

mass(m)=10kg

speed(v)=12m/s

now,

kinetic energy=1/2mv^2

                       =1/2 x 10 x (12)^2

                       =720J

Explanation:

The SI base units have the dimensions of: Group of answer choices mass, weight, time length, density, time mass, length, time weight, length, time mass, length, speed

Answers

The SI base units have the dimensions of: length, mass and time.

What are SI base units?

The SI base units are the internationally accepted system of units of fundamental quantities.

These SI base units consist of system of units of measurement starting with seven base units, which are as follows:

second (s): the unit of time metre (m): The unit of length kilogram (kg): the unit of massampere (A): the unit of electric current kelvin (K): the unit oftemperaturemole (mol.): the unit of amount of substance candela (cd):the unit of luminous intensity

Learn more about SI base units

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how does the kinetic energy of particles relate to the temperature of the substance containing those particles, also show the equation that relates kinetic energy and temperature.

Answers

Answer:

The speed of molecules in an "ideal" gas is related to the temperature

Advanced work indicates that

1/2 m v^2 = 3/2 k T    where v^2 here is the mean square speed

This is true for H2, He, O2, Hg   etc. and m is the molecular mass and k the Boltzmann constant

what did democritus think about these tiny particals

Answers

Democritus was an ancient Greek philosopher who lived from about 460 to 370 B.C.E. He was one of the first people to suggest that matter is made up of extremely small particles called atoms. Democritus thought that atoms are solid, indestructible particles that are separated by empty space.

Which information about objects in space can spectroscopy provide.

Answers

Answer:

chemical composition

Explanation:

The spectral data not only provides information about the chemical composition of the objects in space, but also their type, surroundings, and the kind of motion they exhibit.

Natural targets typically receive both direct solar flux from the sun and scattered skylight, which can be used to determine the elements in a sample because they reflect light differently, to measure the distance and speed of galaxies

What is spectrocopy?

The study of how matter absorbs and emits light and other types of radiation is known as spectroscopy. In a manner similar to how a prism divides light into a rainbow of colors, it involves splitting light (or more accurately electromagnetic radiation) into its individual wavelengths (a spectrum).

Generally, under sunlight, field spectroscopy is a technique used to assess the reflectance characteristics of vegetation, soils, rocks, and water bodies in the natural environment. Measurement of light reflected off of natural environment objects is of interest to some disciplines.

Natural targets typically receive both direct solar flux from the sun and scattered skylight, which can be used to determine the elements in a sample because they reflect light differently, to measure the distance and speed of galaxies,

Thus, spectroscopy can provide information about the outer space

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3. Find the air temperature if sound travels 205 m in 0.6 seconds

Answers

Known :

S = 205 m

t = 0.6 s

Solution :

Sound speed

v = S/t

v = (205 m)/(0.6 s)

v = 341.67 m/s

Air Temperature

v² = γRT

(341.67 m/s)² = (1.4)(286 m²/s²·K)(T)

T = 291.5 K



A 4.0-kg object moving at 3.0 m/s experiences a 16.0-Newton resistive force over a duration

of 0.20 seconds. What is the impulse experienced by the object?

a. 2.7 Nos

b.3.2 Nos

c. 4.0 kg•m/s2

d. 12.0 kg•m/s

A... nonsense! None of these are equal to the impulse.

a

b

с

d

е

Answers

Answer:

D is the answer hope you it helps you

A 4.0-kg object moving at 3.0 m/s experiences a 16.0-Newton resistive force over a duration of 0.20 seconds. The impulse experienced by the object is 3.2 N·s. The correct answer is: b. 3.2 N·s

To calculate the impulse experienced by the object, we can use the formula for impulse:

Impulse (J) = Force (F) * Time (Δt)

Given:

Mass of the object (m) = 4.0 kg

Initial velocity (u) = 3.0 m/s

Resistive force (F) = 16.0 N

Duration (time) (Δt) = 0.20 seconds

First, we need to find the final velocity (v) of the object using the following equation of motion:

v = u + (F/m) * Δt

where:

u = initial velocity

F = force

m = mass

Δt = time

v = 3.0 m/s + (16.0 N / 4.0 kg) * 0.20 s

v = 3.0 m/s + 4.0 m/s

v = 7.0 m/s

Next, we calculate the impulse:

J = F * Δt

J = 16.0 N * 0.20 s

J = 3.2 N·s

Therefore, the correct answer is: b. 3.2 N·s

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A baseball with movement lines and a blue arrow pointing down. What force is represented by the vector? friction gravity normal force push.

Answers

In the given baseball the blue line represents gravity. Gravitational Force attracts the objects towards the center of the earth.

What is Gravitational Force?

It is the force that attracts the objects towards the center of the earth. Every massive object has gravitational force but it is negligible for smaller objects.

Friction force works against the direction of the motion of the objects.  The Normal force is the reaction of the gravitational force hence it acts upwards.

Therefore, in the given baseball the blue line represents gravity.

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Answer:

gravity

Explanation:

got it right

The drag force that resists the motion of a car traveling at 80 km h^- 1 is 300 N.

A. What power is required to keep the car traveling at that speed?

B. If the efficiency of the engine is 60%, what is the power of the engine?

(Show Work) please

Answers

The power require to keep the car traveling is 6,666 W.

The power of the engine at the given efficiency is 3,999.6 W.

What is Instantaneous power?

This the product of force and velocity of the given object.

The power require to keep the car traveling is calculated as follows;

P = Fv

[tex]P = 300\ N \ \times \ \frac{80 \ kmh^{-1}}{3.6 \ km h^{-1}/m/s} \\\\ P = 300 \ N \times 22.22 \ m/s\\\\ P = 6,666 \ W[/tex]

The power of the engine at the given efficiency is calculated as follows;

[tex]E = \frac{P_{out}}{P _{in}} \times 100\%\\\\ 60\% = \frac{P_{out}}{6,666} \times 100\%\\\\ 0.6 = \frac{P_{out}}{6,666} \\\\ P_{out} = 3,999.6 \ W[/tex]

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An electric current causes a shaft in a_____to rotate.

Answers

Answer:motor

Explanation:  the shaft in a motor is what rotates

An electric current causes a shaft in a motor to rotate.

What is electric current?

The stream of positive charges which flow from the positive terminal to the negative terminal of the battery attached in a circuit.

An electric motor is the mechanical device which is used to transfer or move the water or fluid from the ground (zero potential energy) to the height (high potential energy).

Thus, An electric current causes a shaft in a motor to rotate.

Learn more about electric current.

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a surfer experienced a windy day at the sea, he counted the waves passing by him per min. he counted 20 waves in one minute. can you find out the frequency of the ocean waves at that time?

Answers

Answer:

Frequency ; H2 or Sec. - 1

A 2.47 kg book is dropped from a height of +2.6 m.
(a) What is its acceleration?
m/s2
(b) What is its weight in newtons?
N

Answers

a.

9.8 m/s^2

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The answer is 9.8 ms^-2, because there is only one force acting on the object so the acceleration will be numerically equal to the gravitational field strength.

b.

gravity = 9.8 m/s^2

2.47 * 9.8 = 24.206 N

The wavelength of a wave is 50cm, twelve waves pass a point within a second. What is the speed of the wave

Answers

Answer:

4 is the answer

Explanation:

In the same year, the average finishing time for U.S. women was 4 hours and 41 minutes. What was the average female speed in miles per hour?

Answers

We have that for the Question "In the same year, the average finishing time for U.S. women was 4 hours and 41 minutes. What was the average female speed in miles per hour?" it can be said that

The average female speed in miles per hour

[tex]V_a=\frac{D}{4.683hours}[/tex]

From the question we are told

In the same year, the average finishing time for U.S. women was 4 hours and 41 minutes. What was the average female speed in miles per hour?

Average speed

This is defined as the collective mean of different travel intervals

Generally the equation for Speed   is mathematically given as

V=\frac{Distance}{Time}

Therefore

For  4 hours and 41 minutes=4.683hours

This travels time was obtained over a  series of distance

Hence

Distance D

The average female speed in miles per hour

[tex]V_a=\frac{D}{4.683hours}[/tex]

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Which of the following types of mirrors refracts light rays that pass through it outward and away from the optical axis?
convex mirrors
plane mirrors
concave mirrors
All of the choices are correct.

Answers

Answer:

convex mirror

Explanation:

A convex mirror or diverging mirror is a curved mirror in which the reflective surface bulges towards the light source. Convex mirrors reflect light outwards, therefore they are not used to focus light.

What is the Kinetic Energy of a 5kg object traveling at 10 m/s?

Answers

Answer:

KE = 250 kg/m/s

Explanation:

use the formula: KE = 1/2 m (v^2)

KE = 1/2 (5) (10^2)

KE = (2.5) (100)

KE = 250 kg/m/s

A woman jogs 10 km in one hour stops at a restaurant for one hour and then walks 10 km in two hours what is her average speed for the outing

Answers

Answer:

5km 1 hour

Explanation:

What is the name of the process where an object is exposed to nuclear radiation

Answers

Answer:

Exposing objects to beams of radiation is called irradiation

pls help i will be so happy thank you

Answers

Answer:

below given.

Explanation:

1) linear/direct

2) Indirect

3) linear/direct

4)  quadratic

5) Inverse

6) linear/direct

7) Inverse / Indirect

8) Inverse / Indirect

A concave mirror has a center of curvature of 24.0 cm. An object 2.5 cm tall is placed 40.0 cm in front of the mirror.

a) At what distance from the mirror will the image be formed?

Answers

Hope you could understand.

If you have any query, feel free to ask.

Answer:

  17 1/7 cm ≈ 17.1 cm in front of the mirror

Explanation:

You want the location of the image formed of an object placed 40.0 cm in front of a concave mirror with radius of curvature 24.0 cm. The object is 2.5 cm tall.

a) Image location

For a spherical concave mirror with radius of curvature r, the relationship between the distance from the mirror to the image (i) and the distance from the mirror to the object (o) is ...

  2/r = 1/i +1/o

Solving for i, we get ...

  i = 1/(2/r -1/o) = 1/(2/24 -1/40) = 120/7 = 17 1/7 ≈ 17.1 . . . . cm

The image will be formed about 17.1 cm in front of the mirror.

__

Additional comment

The magnification is -i/o = (-120/7)/40 = -3/7. The image height is about -15/14 ≈ -1.07 cm. The minus sign means the image is inverted with respect to the object.

The actual formula uses 1/f where f is the focal length. The "small angle approximation" for a spherical mirror says f = r/2, so 1/f = 2/r.

The attachment shows calculation of the image height as well as its location.

<95141404393>

plss help quick!!! Which component of the galaxy is the arrow pointing to?


1 Dust
2 Gravity
3Moons
4 Sun

Answers

I think it’s dust sorry if it wrong

Answer: dust is right bc i took the test and got it right

Explanation:

What's the power of a lightbulb that uses 110V and draws 0.5A?

Answers

The power P equals the voltage V multiplied by the current I. So P=0.5x110=55 W

PLEASE HELP! (I’m in 8th grade so if you could try to make it soils like an 8th grader)

Wave A has a high frequency. Wave B has the same amplitude as Wave A,
but transfers a third of the energy. What can you infer about the relative frequency of Wave B? Explain your answer.

Answers

Answer:

Wave A and B have the same pitch, but Wave A is a quieter/softer sound. Wave A and B have the same pitch, but Wave B is a quieter/softer sound. Which sound wave shows the loudest sound?

Explanation:

i tried to help as quick as i could good luck

If you’re going 25M/S in a car for 120 seconds how many meters have you traveled?

Answers

Answer:

30 M/S

Explanation:

25×120×÷100 = 30 M/S

Sorry if the answer wrong

i try mu best to help u

tq

Degrees of loudness and softness in music are called.

Answers

Degrees of loudness and softness in music are called dynamics. I don’t really have an explanation for this, that’s just what they’re called. I know because I’m a violinist and learned it when I first started playing.

Calculate the atmospheric pressure at the sea level in pascal(pa)(density of mercury =13600Kgm^-3

Answers

Hey there ;),

Given:

Density of mercury=13600 kgm^-3

Lets find the atmospheric pressure at sea level in Pascal.

To find atm pressure, apply formula-

Pressure = h×p×g

where height = 0.76 m, p as 13600 kgm^-3 and acceleration due to gravity as 9.8 m/s²

Finding Atm,

Pressure = 0.76×13600×9.8

→ Pressure = 101292.8

Pressure = 101293

Therefore, atmospheric pressure is 101293 Pa

Answered by Benjemin

IF YOUR GOOD AT SCIENCE THEN PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST

Answers

Answer:

This is an open circuit

Explanation:

An open circuit I believe

It needs to be closed for the bulb to be turned on

If the discovery of oxygen wasn’t made in 1774, do you think it would have been discovered later on?

Answers

I don’t know sorry I’m new

Which provides a greater mechanical advantage; a single fixed pulley or a two pulley system? Why?

Answers

It gives the ideal mechanical advantage of each type. In the single fixed pulley, only one rope segment pulls up on the load, so the ideal mechanical advantage is 1. In other words, this type of pulley doesn't increase the force that is applied to it. However, it does change the direction of the force.
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