A block of cheese Bhangs from the ceiling by rope 1 A wheel of cheese Whangs from the block of
cheese by rope 2
What is the correct free body diagram for the block of cheese B?
URGENT

The water exerts a net drag force on the boat, and tends to make the boat move along with the average water flow, or stay put if the water isn't going anywhere. The water will heat up slightly as energy from the big motion ...

Answer:

Average velocity, V = 2.5m/s

Explanation:

Given the following data

Displacement = 10m

Time = 4secs

Average velocity can be defined as the rate of change in displacement with time. Velocity is a vector quantity and as such it has both magnitude and direction.

Mathematically, average velocity is given by the equation;

[tex]Velocity = \frac{displacement}{time}[/tex]

[tex]V = \frac{d}{t}[/tex]

Substituting into the above equation;

[tex]V = \frac{10}{4}[/tex]

Average velocity, V = 2.5m/s

Answer:

3 a is the ans i think so ....

Answer:

If you ring the doorbell and no one opens the door, you'll infer that no one is home rather than continuing to ring the doorbell to an empty house. Being able to understand this and look for another solution is another example of mental flexibility.

Explanation:

Answer:

9.8 m/s/s

Explanation:

The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its valueis 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, Thehorizontal motion of a projectile is independent of its vertical motion.

Answer:

the horizontal component of the velocity, however, retains its initial value v0x=+115 m/s throughout the entire descent.

Explanation:

since the plane also travels at a constant horizontal velocity of +115 m/s, it remains directly above the falling package.

Answer:The fluid friction or drag can be reduced are minimised by giving special shape called streamlined shape to the objects which Move through fluids like air or water

Explanation:

plz mark brainlyest

Answer:

Hydrogen and helium

Answer:

1. iron, nickel, calcium, sodium, and magnesium

2. nuclear fusion

Explanation:

I googled it

Answer: Yes, two vectors of equal magnitude that are pointing in opposite directions will sum to zero

Explanation: Two vectors of unequal magnitude can never sum to zero. If they point along the same line, since their magnitudes are different, the sum will not be zero.

Solution :

A vector is defined as an element that has magnitude of some measure and direction.

It is given there is vector 'd' which has magnitude 2.6 m and its direction is towards north.

a). -d

    The magnitude of the vector '-d' is 2.6 m and its direction is reversed, i.e. its direction is towards south.

b). d/2.0

  The magnitude of the vector 'd/2.0' is 1.3 m and its direction is towards north.

c). - 2.5d

  The magnitude of the vector increases by 2.5 times i.e. 2.5 x 2.6 = 6.5 m and the direction is towards south.

d). 5.0d

    The magnitude of the vector increases by 5 times i.e. 5 x 2.6 = 13 m and the direction is towards north.

Answer:

Explanation:

The kinetic energy of the car can be found by using the formula

[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]

m is the Mass

v is the velocity

From the question we have

[tex]k = \frac{1}{2} \times 1200 \times {5.5}^{2} \\ = 600 \times 30.25[/tex]

We have the final answer as

Hope this helps you

Answer:

Centripetal force

Explanation:

The force that keeps a bottle moving round and round in circular motion is centripetal force.

Centripetal force is an inward directed force that keeps a body in circular motion. This force keeps a body moving along a circular path.

To find the force, we use the expression below;

     F = [tex]\frac{mv^{2} }{r}[/tex]

F is the centripetal force

m is the mass of the body

v is the velocity

r is the radius

Answer: D (Wave 4, Wave 3, Wave 1, Wave 2)

The arrangement of these waves in order of increasing frequency is;Wave 4, Wave 3, Wave 1, Wave 2.

A wave is a disturbance along a medium that transfers energy. We have to note that waves are shown in the manner that is depicted by the images shown in the question.

Now, the arrangement of these waves in order of increasing frequency is;Wave 4, Wave 3, Wave 1, Wave 2.

Learn more about waves:https://brainly.com/question/16263433

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Answer:

This is what I got the teacher hasn’t graded it yet so sorry if it’s not right

Explanation:

Answer:

the answer is B

Explanation:

The development of the theory of reinforcement by B. F. Skinner (Burrhus Frederick Skinner) and his behaviors support for its application to learning contributed to the emergence of the behaviorism and programmed instruction movements. Thus, option B is correct.

Small instructional frames, self-pacing, active learner reaction to inserted questions, and fast feedback regarding behaviors the accuracy of a response are all characteristics of programmed instruction.

In essence, individualized education substitutes methodical or pre-programmed materials for the behaviors. Individualized teaching can be delivered by print, computer, or other medium as long as it is founded on the ideas mentioned above.

Therefore, The psychologist who believed that behaviors that are followed by favorable consequences tend to be repeated was B. F. Skinner.

Learn more about behaviors here:

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Answer:

Explanation: Gravity keeps our bones and bodily muscles from not working, things like dams can be one example of gravitational energy being used for our benefits. Without gravitational energy, our earth most likely won't stay in it's own atmosphere. Another example is like a car on the top of the hill, or a snow pack (Where an avalanche might happen)

It is the process of energy being converted into another type of energy.

Answer:

Elephant

Explanation:

has a larger mass which equates to greater momentum

The wire that lies within a magnetic field must be true for the magnetic field to produce an electric current in the wire is, and the field must be moving. Hence, option C is correct.

Magnetic forces can be seen in a magnetic field, an electric current, a changing electric field, or a vector field around a magnet. Compass blades and other ferromagnetic materials align in the path of magnetic fields like the one found on Earth.

Electrically charged particles are forced to move in a circular or helical pattern by magnetic fields. The operation of electric motors is caused by this force, which is applied to electrical impulses in wires in such a magnetic field.

Magnetization is stationary and is referred to as a magnetization field when it surrounds a magnetic core or a wire delivering a constant electric current in a single direction.

To know more about Magnetic fields:

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Answer:

The field must be moving (C)

Answer: option C.

Fabrics such as cotton and silk are synthetic polymers

Explanation:

Fabrics such as cotton and silk are synthetic polymers because cotton and silk are natural polymers meaning they are gotten from natural source. Cotton is gotten from cotton plants and it is composed of cellulose which is a carbohydrates.

Silk also is gotten from animals I.efrom insect fibre or the cocoons of the larvae of the mulberry silkworm which is a polymer.

it would be on the ground

Incomplete question; Full question read;

Type the correct answer in the box. Spell all words correctly. Stephen is a student who wants to test his knowledge of medical terminology. Which option could he use?

For medical terminology, ___________ can include a single word part on one side, with the meaning on the other side. Stephen can test himself or can enlist the help of someone else to hold them up to test him.

Answer:

Flashcard

Explanation:

It is interesting to note that a flashcard is an effective memory and teaching aid. It usually has a question on one side, and the other side contains the answer.

Hence, Stephen can build his knowledge of medical terminology by making use of a flashcard himself or can enlist the help of someone else to hold them up to test him.

Answer:

P.E = 4.398 Joules.

Explanation:

Given the following data;

Spring constant, k = 71.8N/m

Displacement, x = 0.35m

To find the elastic potential energy;

The elastic potential energy of an object is given by the formula;

[tex] P.E = \frac {1}{2}kx^{2}[/tex]

Substituting into the equation, we have;

[tex] P.E = \frac {1}{2}*71.8 *(0.35)^{2}[/tex]

[tex] P.E = 35.9 * 0.1225 [/tex]

Elastic potential energy = 4.398 Joules.

Therefore, the elastic potential energy of the spring is 4.398 Joules.

Answer:

its paper

Explanation:

hope it helps

ace ur test !

Answer:

250 Joules

Explanation:

The formula is KE = 1/2m*v^2

Answer:

It means...

Explanation:

The mechanical advantage of a machine is 4. Mechanical advantage MA is the ratio of output (generated by the machine) force to input (applied to the machine) force. So MA = 4 means that for example if you apply 100 N then your machine will multiply that force and generate 400 N.

Answer:

The mechanical advantage of a lever is 4 means that the lever can lift a load which is four times greater than the applied effort.

Hope I helped!

Best regards! :D

~[tex] \text{TheAnimeGirl}[/tex]

Answer:

Mass, m = 16.02kg

Explanation:

Given the following data;

Force, F = 157N

Since it's a free fall, acceleration, a = g = 9.8m/s² (acceleration due to gravity).

To find the mass;

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

[tex] F = ma[/tex]

Where;

Making mass (m) the subject of formula, we have;

[tex]Mass (m) = \frac{F}{a}[/tex]

Substituting into the equation;

[tex]Mass (m) = \frac{157}{9.8}[/tex]

Mass, m = 16.02kg

Therefore, the mass of the rock is 16.02kg.

Answer:

False

Explanation:

Answer:

false

Explanation:

you can improve your score next time

Answer:

The boat's acceleration is 4 m/s²

Explanation:

This question seeks to test the knowledge of acceleration and how to calculate acceleration when the speed is provided. Hence, the formula for acceleration would be used here.

Acceleration (m/s²) = speed (in m/s) ÷ time (in seconds)

Acceleration = 80 m/s ÷ 20 secs

Acceleration = 4 m/s² or 4 ms⁻²

The boat's acceleration is 4 m/s²