Questions: 1. A table of weight 500N has four legs covering a total area of 0.5m². Calculate the pressure applied by the table on the ground

2. A man with a mass of 50kg, is standing on the ground. His two feet cover an area of 0.01m². calculate the pressure exerted by his two feet

3. An elephant has a weight of 40000N and her feet cover a total area of 0.5m². A woman weighs 600N and area of her heels in contact with the ground is 0.0075m². Who exerts the greatest pressure on the ground?
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The way you will know that a figure represents a vector is that it will have magnitude and direction.

A figure that is a vector will typically have magnitude and direction. This means that it will be represented by an arrow(s)  with its' magnitude also showing.

Whereas, on the opposite side, the figure is termed as a scalar if it doesn’t have a direction.

Thus, we can know a vector diagram if the magnitude and direction are indicated.

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Answer:

none

Explanation:

The speed of the ball after one second is obtained as 9.8 m/s.

We know that  since the ball dropped from a height, its initial velocity is zero.

Thus we have;

u = 0 m/s

v = ???

g =  9,8 m/s²

t =  1sec

Given that;

v = u + at

v = at

v =  9,8 m/s² *  1sec

v = 9.8 m/s

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Answer:

[tex]750\; {\rm m\cdot s^{-1}}[/tex].

Explanation:

The distance between two adjacent nodes of a standing wave is equal to one-half (that is, [tex](1/2)[/tex]) the wavelength of this wave.

Let [tex]\lambda[/tex] denote the wavelength of the standing wave in this question. The distance between two nodes of this wave is [tex]0.25\; {\rm m}[/tex], meaning that [tex](1/2)\, \lambda = 0.25\; {\rm m}[/tex]. Thus, [tex]\lambda = 2 \times 0.25\; {\rm m} = 0.50\; {\rm m}[/tex].

Given that [tex]f = 1500\; {\rm Hz}[/tex] is the frequency of the waves that formed this standing wave, the speed of these waves would be:

[tex]\begin{aligned}v &= \lambda\, f \\ &= 0.50\; {\rm m} \times 1500\; {\rm Hz} \\ &= 0.50\; {\rm m} \times 1500\; {\rm s^{-1}} \\ &= 750\; {\rm m\cdot s^{-1}}\end{aligned}[/tex].

Answer:

200 j is kinetic energy of mass

Step-by-step explanation:      

Step 1: Formula

10.0 = Meters

800 = Newtons

4.0 = Centre of Gravity

Explanation in words (Short Form)

-  We know all the formulas and that we are calculating the least force being applied. We know that balancing the pole at (A) with the weight of the gravity will equal more force at B times 10. So the answer will be 320 N because the B force will equal 3200. If we divide 3200 by 10. The answer will result as 320. So the final answer for this question is 320N

Answer:  

Balancing the pole at A with the weight acting at the centre of gravity = 800(4) Force at B multiplied by 10 = 3200 divided by 10 equals 320N

= 320N

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The peak voltage based on the information given will be 1.33V.

From the information given, Coil A has 75 turns and coil B has 100 turns.

The voltage will be:

IVa = IVb

We will then substitute the values. c

V = 100/75

V = 1.33V

Therefore, the peak voltage based on the information given will be 1.33V.

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Plant trees on places where forests have been chopped down to restore damaged ecosystems. Encourage individuals to live in a way that is environmentally friendly. Create parks to conserve the rainforests and animals. Companies that operate in environmentally friendly methods should be supported.

To identify a satirical tone, look for words an author uses to exaggerate a particular character behavior to make that person appear ridiculous to the reader. The statement is True.

What a person thinks upon a situation and get through it makes the character of a person and defines his behavior.

Given is a statement "To identify a satirical tone, look for words an author uses to exaggerate a particular character behavior to make that person appear ridiculous to the reader".

The words used by the person forms the character. So, the author searches for the word which says about his character but the reader finds it ridiculous.

Thus, the statement is true.

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Answer:

a = 0.5m.s²

Explanation:

Fnet = m×a

50 = 100×a

a = 0.5

(a) The frequency observed by the passenger on the east-bound train when they are 1000 m apart is 675.5 Hz.

(b) After 10 seconds, the frequency observed by the passenger on the east-bound train will be greater than the frequency observed when they are 1000 m apart.

The frequency observed by the passenger on east-bound train is calculated by applying Doppler shift formula.

[tex]f = f_0(\frac{v \pm v_0}{v\pm v_s} )[/tex]

where;

[tex]f = 600(\frac{343 +15}{343-25} )\\\\f = 675.5 \ Hz[/tex]

The frequency observed by the passenger increases with decrease in distance between the two trains.

Thus, after 10 seconds, the frequency observed by the passenger on the east-bound train will be greater than the frequency observed when they are 1000 m apart.

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The potential difference across the ends of a wire is doubled in magnitude. If ohm’s law is obeyed, the resistance is not changed. Thus, option A is correct.

The current is the stream of charges which flow inside the conductors when connected across the end of voltage.

From Ohm's law, V =IR

Here, R is the proportionality constant called the resistance of the resistor.

The complete question is given in the image attached.

The potential difference across the ends of a wire is doubled in magnitude.2V = IRR =2 V/IAs, the resistance is a constant value, it does not change.

The following statements concerning the resistance of the wire true is :

The resistance is not changed

Thus, the correct option is A.

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Explanation:

Methane (CH4) is 30 times stronger than carbon dioxide as an absorber of infrared radiation.

Answer:

The main reasons why CH4 has a higher vapor pressure at a given temperature when compared to CH3Cl is that CH4.

And Is 30 Times Stronger than Carbon dioxide...

Explanation:

Hope It Helps!!!

The patient apply pressure to his side of the tube is 15 x 10⁴ N/m². The correct option is D.

The pressure is the amount of force applied per unit area. It is represented as

Pressure p = Force/Area

Given is a doctor has a patient blow on one side of a U-shaped tube that is partially filled with water and has a ball floating on the other side. The ball rises with a force of 150 N. The cross section are of the tube is 0.001 m³

The pressure applied is

p = 150 /0.001

p = 15 x 10⁴ N/m²

Hence, the patient apply pressure to his side of the tube is 15 x 10⁴ N/m².

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The velocity of a trip from City A to City B is  30 miles per hour.

The term velocity is defined as the ratio of displacement to time. Displacement refers to the distance that is covered in a specified direction.

Now  given that the straight line distance from A to B is about 120 miles. hen it follows that the velocity of a trip from City A to City B is obtained from; 120 miles/ 4 hours = 30 miles per hour.

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Work done by the force is 150 Joules.

Steps involved in the question:

Step one:

Given data

Force F= 10N

the distance is described by the coordinate =  (0,0) to (15,0)

hence the distance = 15m in the x-direction.

Step two:

Required is the work done

we know that work done is expressed as

Wd= Force* Distance

Wd= 10*15

Wd= 150 Joules

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Answer:

added in picture

Explanation:

added in the picture

Answer:

The food supply chain comprises all the stages that food products go through, from production to consumption

Explanation:

The angular acceleration is 531. 98 rad/s

Using the formula:

Angular acceleration  = change in angular velocity / change in time taken

Angular velocity = 635 rev/ min, covert to rad/ sec

The frequency in radians per second is equal to the revolutions per minute multiplied by 0.10472

Then angular velocity in rad/sec = 635 * 0.10472 = 66. 4972 rad/sec

time = 8. 0s

Substitute into the formula

Angular acceleration = 66. 4972 / 8. 0

Angular acceleration = 531. 98 rad/s²

Thus, the angular acceleration is 531. 98 rad/s²

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Answer:

no

Explanation:

the moon's force of gravity is not strong enough to pull you down compared to earth, so you will just float

Glenohumeral external rotation is the concurrent motion at the glenohumeral joint which occurs with shoulder abduction.

This refers to the process in which the arm is moved away from the body which also affects the ball and socket joint.

This is referred to as glenohumeral joint in this case which moves in an external rotation manner.

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The kind of investigations might have led to our current understanding of matter and energy is research and measurement.

It is important for scientists to use the same scientific method and consistent measurement units in order to get the correct value while analayzing.

The matter has volume and space occupied.

When conceivable the researcher endeavors to test his speculations via painstakingly planned and controlled tests that will yield quantitative instead of subjective outcomes.

Thus, the kind of investigations might have led to our current understanding of matter and energy is research and measurement.

It is important for scientists to use the same scientific method and consistent measurement units in order to get the correct value while analayzing.

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Answer:

chemical energy, Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat; such reactions are called exothermic

Explanation:

hope it will help you

The magnitude of the acceleration that the engine must produce is  0.065 m/s².

Acceleration is given by the ratio of Resultant or total force acting on any object and the its mass.

It can also be defined as the rate change of velocity with time.

acceleration a = (Δv) / (Δt)

Given is a lunar probe is moving 1670 m/s at a 73° angle. it needs to land on the moon  3.71 x 10⁸ m away in a 46° direction in 8.64 x 10⁴ s.

The initial velocity will be

1670 x cos (73°-46°) = 1487.981 m/s

Using the second equation of motion, we have

s = ut + 1/2 at²

The final velocity will be zero after landing on Moon.

Substituting the values, we have

3.71 x 10⁸=  1487.981 x  8.64 x 10⁴ + 1/2 a ( 8.64 x 10⁴)²

Solving the equation, we get

acceleration, a = 0.065 m/s²

Thus, the magnitude of the acceleration that the engine must produce is   0.065 m/s²

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Answer:

The direction is 30.6

Explanation:

Answer:

450 ML

Explanation:

Given:

Volume of gas sample: 550 mL Pressure: 1.8 atm plus 2.2 atm

To find:

The new volume of the gas after the pressure increases to 2.2 atm.

___

steps

⇒ [tex]V_1P_1=V_2P_2[/tex]

⇒ [tex](550\text{ml})(1.8\text{atm})[/tex]

⇒ [tex]=(x)(2.2\text{atm})[/tex]

⇒ [tex]x=\frac{(550)(1.8)}{2.2}[/tex]

⇒ [tex]x=450\text{ml}[/tex]

Answer:

V₂ = 450 mL

Explanation:

Because you are dealing solely with pressure and volume, you can use Boyle's Law to find the missing value. The equation looks like this:

P₁V₁ = P₂V₂

In this formula, "P₁" and "V₁" represent the initial pressure and volume. "P₂" and "V₂" represent the final pressure and volume. You have been given values for all of the variables except for "V₂". Thus, you can substitute the given values into the equation and simplify to find the answer. The final answer should have 2 sig figs to match the given values.

P₁ = 1.8 atm                      V₁ = 550 mL

P₂ = 2.2 atm                     V₂ = ?

P₁V₁ = P₂V₂                                               <----- Boyle's Law equation

(1.8 atm)(550 mL) = (2.2 atm)V₂              <----- Plug given values in

990 = (2.2 atm)V₂                                    <----- Multiply 1.8 and 550

450 = V₂                                                  <----- Divide both sides by 2.2

Graph A best represents the relationship between pull is doubled, gravity and distance. depends on the mass and the force of gravity. Option A is correct.

Newton's law of gravity states that each particle having mass in the universe attracts each other particle with a force known as the gravitational force.

The expression for the gravitational force is given as;

[tex]\rm F = G\frac{Mm}{r^2}[/tex]

Gravitational force is proportional to the product of the masses of the two bodies and inversely proportional to the square of their distance.

Decreasing the distance would increase the gravity of the planet.

Gravity is the attraction force that draws two mass-containing objects together. the gravitational distance's strength.

The force of gravity weakens as the distance between the items rises. if the separation is just one-fourth as great as previously. In the graph, the link between pull and doubled is best represented by A.

Hence option A is correct.

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The smallest time interval in which the magnetic field can be turned on or off to induced the emf is 47.5 s.

The emf induced in the coil is calculated as follows;

emf = dФ/dt

where;

0.12 = 5.7/dt

dt = 5.7/0.12

dt = 47.5 s

Thus, the smallest time interval in which the magnetic field can be turned on or off to induced the emf is 47.5 s.

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pluto is best decribed as smallest planet