A uniform beam weighing 1 N is used as a metre rule. The beam is supported by a pivot
at the 30 cm mark. A 12 N weight is hung at the 0 cm mark and a 2 N weight is hung at the
60 cm mark as shown in Figure 5.19.
O cm
50 cm 60 cm
100 cm
수
► Figure 5.19
30 cm
mark 1 N
12 N
2 N
W
What is the weight W of a mass hung at the 100 cm mark in order to balance the beam?
Please help! ​

Answer:

The horizontal component of the force, Fₓ = 63.64 N

The vertical component of the force, [tex]F_y[/tex] =  63.64 N

Explanation:

Given;

magnitude of the force, F = 90 N

angle between the handle and the ground, θ = 45°

The horizontal component of the force, Fₓ = Fcosθ

Fₓ = 90 x cos45

Fₓ = 63.64 N

The vertical component of the force, [tex]F_y = Fsin \theta[/tex]

[tex]F_y[/tex] = 90 sin45

[tex]F_y[/tex] = 63.64 N

Therefore, the horizontal  and vertical components of the force is 63.64 N.

Answer:

it means it has pressure of 13.6 CM mercury on an area

Answer:

a variable (often denoted by y) whose value depends on that of another.

Answer:

The speed of the car after the break was applied is  90.46 m/s

Explanation:

Given;

initial velocity of the car, u = 26.8 m/s

accelertation of the car, a = -8.2 m/s²

time of motion, t = 14.3 s

final velocity, v = ?

Apply the following kinematic equation;

v = u + at

v = 26.8 + (-8.2 x 14.3)

v = 26.8 -  117.26

v = -90.46 m/s

magnitude of the final velocity = 90.46 m/s

Therefore, the speed of the car after the break was applied is  90.46 m/s

Answer:

A.) 3.975 m/s

B.) 0.925 m/s

Explanation:

Given that a person walks first at a constant speed of 4.90 m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 3.05 m/s.

A) What is her average speed over the entire trip?

The average speed = (4.90 + 3.05)/2

Average speed = 7.95/2

Average speed = 3.975 m/s

B) What is her average velocity over the entire trip?

Since velocity is a vector quantity, that is, we consider both the magnitude and direction

Average velocity = ( 4.90 - 3.05)/2

Average velocity = 1.85/2

Average velocity = 0.925 m/s

◈ As per newton's second law of motion, Force is defined as the product of mass and acceleration[tex].[/tex]

Mathematically,

[tex]\dag\:\boxed{\bf{\purple{F=ma}}}[/tex]

Unit of mass : kg

Unit of acceleration : m/s²

Therefore,

Unit of force ➠ kg m/s²

SI unit : N (newton) or kg m/s²

Given :

Actual mass , [tex]m_e=436.8\ g[/tex] .

Three observations 460.9 g, 461.4 g, 459.0 g .

To Find :

The percent error of the student.

Solution :

Percent error is given by :

[tex]\%error=\sum \dfrac{|approx\ value -actual\ value |}{exact\ value}\times 100\\\\\%error=\dfrac{|460.9-436.8|+|461.4-436.8|+|459-436.8|}{436.8}\times 100\\\\\%error=\dfrac{70.9}{436.8}\times 100\\\\\%error=16.23\%[/tex]

Therefore , the percent error of the student is 16.23 % .

Hence , this is the required solution .

Answer:

82 km/h

Explanation:

Given that A boat sailed 560 km in 8 hrs. It took three hours to travel the first 150 km. That is,

The remaining distance will be:

560 - 150 = 410 km

the remaining time will be:

8 - 3 = 5 hours

For the remaining Journey, average speed will be:

Speed = distance/time

Speed = 410/5

Speed = 82 km/h

Therefore, the average speed for the remaining journey will be 82 km/h

Answer:

1 millimetre, 1 centimeter, 1 meter, 1 kilometer

Hope it helped u if yes mark me BRAINLIEST

Answer:

they're important because they simplify the results of the comparison

Answer:

Average speed = 1 m/s

Explanation:

Given that,

Ohnny walks 900 meters to the store to buy a candy bar. He then walks back home. It would mean that the total distance covered by him is 900 m + 900 m = 1800 m

His total trip took him 30 minutes or 1800 seconds

We need to find the average speed. It is equal to the total distance divided by the total time taken. So,

[tex]v=\dfrac{1800\ m}{1800\ s}\\\\v=1\ m/s[/tex]

So, his average speed is 1 m/s.

Answer:

A

Explanation:

my teacher said

Answer:

2m/s.

Explanation:

Speed = Distance / Time

= 4m / 2s

= 2m/s.

Answer:35.11

Explanation:

Answer:yes

Explanation:

Answer:

No they are totally different...

Velocity is displacement/time. while vector is both magnitude and direction.....

Velocity is a vector quantity because it has both magnitude and direction

Answer:

$ 115.76

Explanation:

From the question given above:

1 pound of a chemical cost $ 5.25

To obtain the cost of 10 Kg of the compound, we must convert 10Kg to pound. This can be obtained as follow:

1 Kg = 2.205 pound

Therefore,

10 Kg = 10 Kg / 1 Kg × 2.205 pound

10 Kg = 22.05 pound

Therefore, 10 Kg is equivalent to 22.05 pounds

Finally, we shall determine the cost of 22.05 pounds as follow:

1 pound of a chemical cost $ 5.25.

Therefore, 22.05 pounds of the chemical will cost =

22.05 pound / 1 pound × $5.25

= $ 115.76

Therefore, 10 Kg (i.e 22.05 pound) of the chemical cost $ 115.76

Answer:

An elephant.

Explanation:

The amount of matter contained inside a body is called its mass. It is independent of the location of the object. It remains the same always.

Out of the four options we need to tell which animals would be measured to have the most mass. It is very clear that, an elephant has most mass. It is very huge in size of three other animals.

Hence, the correct option is (A).

Answer:

I think its a Elephant

Explanation:

Answer:

A simile can be established with the news, where the fact that occurs is the matter of has some type of oscillation or disturbance, which occurs somewhere and is there, the news is the wave that carries the information of this fact the energy of the same to all points, therefore it is equivalent to a traveling wave.

Explanation:

Traveling waves are disturbances of the medium that are transmitted with a constant speed, where matter is subjected to oscillations around its equilibrium point, transporting only energy.

A simile can be established with the news, where the fact that occurs is the matter of has some type of oscillation or disturbance, which occurs somewhere and is there, the news is the wave that carries the information of this fact the energy of the same to all points, therefore it is equivalent to a traveling wave.

The news is the wave that carries the information of this fact and the energy of the same to all points, making it equivalent to a traveling wave.

A wave is a phenomenon that flows across a material medium without leaving any lasting mark. Mechanical or electromagnetic waves can be used to classify them.

Transverse and longitudinal are the two main forms.

The wave can be compared in the form of news as

The news is the wave that carries the information of this fact and the energy of the same to all points, making it equivalent to traveling. wave.

Traveling waves are medium disturbances that are conveyed at a constant pace, where matter oscillates around its equilibrium point, transferring only energy.

A parallel may be drawn with the news, where the fact that occurs is the issue of having some sort of oscillation or disturbance.

Hence the news is compared with the help by the help of energy and information.

To learn more about the wave refer to the link;

brainly.com/question/3004869

Answer:

€0.98 per liter = 4.377 doller per gallon

Explanation:

It is given that, In Europe, gas cost approximately €0.98 per liter. We need to convert it into dollars($) per gallon.

We know that, 1 euro = 1.18 United States Dollar

1 litre = 0.264172 US gallon

Cost of gas in Europe is €0.98 per liter.

[tex]0.98\ \text{euro/ liter}=\dfrac{0.98\times 1.18\ \text{doller}}{0.264172\ \text{gallon}}\\\\=4.377\ \text{doller/gallon}[/tex]

Answer:

i was doing this is it actually 0.6

Explanation:

;D

The acceleration of the skateboard from its initial velocity to the final velocity over the given time is 0.6m/s².

Motion is simply the change in position of an object over time.

From the First Equation of Motion;

v = u + at

Where v is final velocity, u is initial velocity, a is acceleration and t is time elapsed.

Given the data in the question;

To determine the acceleration of the skateboard, we substitute our given values into the expression above.

v = u + at

10m/s = 4m/s + ( a × 10s)

( a × 10s) = 10m/s - 4m/s

a × 10s = 6m/s

a = 6m/s ÷ 10s

a = 0.6m/s²

Therefore, the acceleration of the skateboard from its initial velocity to the final velocity over the given time is 0.6m/s².

Learn more about Equations of Motion here: brainly.com/question/18486505

Answer:

it has nucleus

Explanation:

Giardia is a microscopic single celled prokaryotic organism that causes giardiasis. Giardiasis is an intestinal Infection in humans and dogs which is caused by giardia. It is an eukaryotic organism that have nucleus and nuclear membrane but it lacks other ORGANELLES that are present in Eukaryotic organisms. It causes diarrhoea in humans and woman's can get infected from dogs.

Answer:

The answer is nucleus.

Prokaryotes dont have a nucleus, but this Giardia is a eukaryotic organism so it has a nucleus.

Explanation:

Answer:

nngh have

bjruh hjrhhj be rnrnnrnrnnnrnjrjnnnnnnnnrnrn n n and I was nrn

Explanation:

jbbbbbhhhjjnnnnnnnnnnjhvcc

Explanation:

Answer:

Your hypothesis would be proven wrong.

Explanation:

To have a hypothesis be refuted, your hypothesis would be able to be proven wrong. A hypothesis has to be able to be supported and refuted, or proven wrong.

Answer:

D) D Storing genetic material

Explanation:

Answer:

D) D Storing genetic material

Explanation:

Answer:

Glass & Plastic Bottle Measuring Systems Definitions. Milliliter (ml): Milliliters are used in the metric measurement system to measure units of liquid volume. One milliliter is equal to one cubic centimeter or 1/1000 of a liter…

Explanation:

Answer:

There are four natural states of matter: Solids, liquids, gases and plasma.

Explanation:

The fifth state is the man-made Bose-Einstein condensates. In a solid, particles are packed tightly together so they don't move much.