Please help Its due in ten minutes

Answer:

then you solve two torque one is anticlockwise and one is clock wise toque 1=force*perpendicular distance is equal to torque 2= force* perpendicular distance so tau = torque 1+ torque 2and give your answer

Answer:

W =  4 N (to balance the beam)

Explanation:

take moment at support Δ

∑M at Δ = 0 (note: clockwise is + and counter clockwise is - )

0 = W(100 - 30) + 2(60-30) + 1(50-30) - 12(30)

0 = W70 + 2(30) + 1(20) - 360

0 = W70 + 60 + 20 - 360

0 = W70 - 280

280 = W70

W = 280 / 70

W = 4 N (to balance the beam)

to take the reaction at support Δ

Δ = 12 + 1 + 2 + 4

Δ = 19 N

proof that W = 4

∑M at 12N = 0

0 = 19(30) - 1(50) - 2(60) - W(100)

0 = 570 - 50 - 120 - 100W

100W = 400

W = 400 / 100

W = 4 N -------- ok

Answer:

protein synthesis

Explanation:

A pesticide kills insects by disabling the ribosomes in their cells. The function that would be most immediately in the insects' cells is protein synthesis. The correct option is A.

Pesticides are the chemicals that are used to kill insects and other microbes that infect the crops and other things. Pesticides are very harmful for health of other animals and humans. They also cause disabilities in birds which eat the insects killed by pesticides.

Protein synthesis is a process of synthesizing protein in the cell. This process done by cell organelles and DNA and RNA. Pesticides degenerate the process of protein synthesis in insects, they eventually die due to no working of cell.

Thus, the correct option is A Protein synthesis.

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Answer:

C

Explanation:

Both mitochondria and chloroplasts have their own DNA that is different from the nuclear DNA of the larger host cell.

Mitochondrial DNA (mtDNA) and chloroplast DNA (cpDNA) actually more closely resemble the structure of prokaryotic DNA (circular) as compared to the structure of eukaryotic DNA (linear).

The endosymbiotic theory proposes that mitochondria and chloroplast were once independent prokaryotic organisms that survived endocytosis by an early eukaryotic cell.

The lines of evidence that support the endosymbiotic theory include:

In conclusion, the statement "both mitochondria and chloroplasts have their own DNA that is different from the nuclear DNA of the larger host cell"  helps support the endosymbiotic theory (Option C).

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Answer:

NITROGEN - 2

HYDROGEN- 4

OXYGEN- 3

Answer:

B. 4.29s

Explanation:

If the man appears to move 12.4m/s when the boat appears to move 11m/s, it means that the man moves 1.4m on the boat (12.4-11=1.4). So if the man moves 1.4m per second then it will take him 6/1.4=4.29s to move 6 m relative to the boat.

Hope this helped!

Answer:1 N = 1 kg·m/s2

Explanation:

Answer:

Distance = 2421 km

Displacement I'm not sure

I live in Asia

Answer:the throat

Explanation:

Answer:

zszzzzzz

Explanation:

Answer:

Opposite charges attract each other, which means that a positive charge from a proton will attract negative charge from an electron.

Explanation:

Opposite charges attract because because their forced act in the same direction, which pulls them together. Protons are always positively charged subatomic particles and electrons are negatively charged subatomic particles. This attraction between the protons and electrons in atoms is what enables them to stay together and bond with other atoms.

Hope this helped!

Answer:

?

Explanation:

Answer: B. 50/24

Explanation: just took the usatestprep

Answer: The weight of the astronaut on earth is greater than his weight on the moon.

Explanation:

The reason I got this answer is because the astronaut will have the same mass on the moon as he does on earth. Also the weight of a person or object is determined by gravity. So since the moons gravity isn’t as strong as earths gravity the astronauts are lighter in terms of weight, and this is how they slightly float.

The weight of the astronaut on Earth is greater than his weight on the Moon.  The third option is correct.

The force of attraction felt by a person at the center of a planet or Earth is called as the gravity.

The Earth has the acceleration due to gravity, g =  9.81 m/s², Moon has the acceleration due to gravity 6 times less than that of Earth.

Astronauts who traveled to the Moon were able to float slightly as they walked along its surface. The astronauts were able to do this because they have the same mass on the Moon as he does on Earth.

The weight of a person or object is determined by gravity. Since, the Moon's gravity isn’t as strong as Earth's gravity. So, the astronauts slightly float on Moon.

The weight of the astronaut on Earth is greater than his weight on the moon.

Thus, the third option is correct.

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Answer:

Distance = 22m

Displacement = 12 + 2 - 8 =6m

Answer:

D all of these

Explanation:

Extrinsic statements originate in parents ,society and teachers. Option D is correct.

Extrinsic motivation is defined as conduct motivated by external incentives. Extrinsically driven people will continue to do something even if it isn't pleasurable or rewarding in and of itself.

These incentives might be monetary or intangible in nature, such as acclaim or renown. Extrinsic motivation is distinct from intrinsic motivation in that it is only motivated by external incentives.

Extrinsic statements originate in;

a. Parents

b. Society

c. Teachers.

Extrinsic statements originate in all of the above given option.

Hence, option D is correct.

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The truck is going at a speed of 50 MPH.

Answer:

If the helicopter is not moving, then it is not being accelerated.

By second Newton's law we have that:

F = m*a

Force equals mass times acceleration.

Then if we do not have acceleration, we have:

F = m*a = m*0 = 0.

Then the total force must be zero.

So if the gravitational force (pulling down) is 115N, then the force of the propeller must be such that:

Total force = F - 115N = 0

F = 115N

The force of the propeller must be also of 115N, but in the opposite direction.

Answer:

1768 meters

Explanation:

Distance = speed x time.

(340 m/s) x (5.2 s) = 1768 m

Answer:

PROTON - A positively charged particle located in the nucleus of an atom./  ELECTON CLOUD - The area of the atom surrounding the nucleus where electrons can be found. / ELECTRON - A negatively charged particle that orbits the nucleus of an atom. / NUCLEUS - The central part of the atom containing protons and neutrons. / NEUTRON - A neutral particle located in the nucleus of an atom.

Explanation:

The answers are:

The nucleus is a positively charged region at the center of the atom. It consists of two types of subatomic particles packed tightly together. The particles are protons, which have a positive electric charge, and neutrons, which are neutral in electric charge.

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Answer:

B

Golgi body — receiving, sorting, and packaging cell materials for transport

Explanation:

The Golgi body is responsible for receiving, classifying, and packing cell components for transportation in a manner that is consistent with the cell form and function are shown in this figure. Option B is correct.

The majority of eukaryotic cells' cytoplasm contains a combination of vesicles and folded membranes that are used for secretion and intracellular transport known as the Golgi bodies.

Golgi body — receiving, sorting, and packaging cell materials for transport properly match the cell structure and function depicted by this image.

This graphic accurately depicts the cell structure and function of the Golgi body, which receives, sorts, and packages cell components for transit.

Hence, option B is correct.

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Students watched a cartoon either alone or with others and then rated how funny they found the cartoon to be.

Independent Variable:  student alone or with others

Dependent Variable:   how funny student thought the cartoon was

Answer:

Independent Variable: Watching cartoon alone or with others

Dependent Variable: how funny they found the cartoon to be

Explanation:

A dependent variable is the variable being tested. The change in the value of dependent variable depends on the independent variable.

An independent variable is used to test the effects on dependent variable and its does not depend on any variable.

In the above example the dependent variable is how funny the cartoon was. This is being tested and it is tested by independent variable i.e. Students watching cartoon either alone or with others. So the cartoon is funny or not depends on watching cartoon alone or with friends.

Answer:

L_new =L+x^2  = L_new = 0.54_m.

Explanation:

Given data:

Force in the first case,  

F_1 = 5N

Force in the second case,  

F_2 = 20 N

Natural length of spring,  

L= 0.5

Extension in the first case,  

x_1 = 0.01m

Let the force constant of the spring be k.

Thus,

F_1=kx_1

5 = k × 0.01  

⇒ k = 500 N/m.

The extension in the spring in the second case can be given as,

F_2=kx_2

20 = 500x_2

⇒ x_2 = 0.04 m.

Thus, the effective length of the spring would be,

L_new =L+x^2

L_new = 0.5+0.04

L_new = 0.54_m.

Answer:

The answer is 2.33 × 10 race to 6.

Answer:

Kg

Explanation:

Given that the definition of intensity is:

The intensity of the beam is defined as the energy delivered per unit area per unit time. That is,

I =( E × t)/A

Which can expressed as

I = J/m^2/s

The S.I Units of

Energy is Joule = kgm^2s^-1

Area A = m^2

Time t = s

Intensity I = kgm^2s^-1 × m^-2 × s

Intensity I = kg

The cubic metres and seconds are cancelled out

Therefore, the S.I units of intensity is kg

rate is primarily compared with time but can also be distance. Prime answer is C

Answer:

B. percentage

Explanation:

Rate, in the dictionary, means probability. When you use a percentage, you calculate either the amount of a certain thing out of the whole group, or the PROBABILITY of something.

Answer: chemoreceptor apex!!!!!!!

Explanation: