I’ve already figured out A. I just need help with B and C.

Answer: 14 centimeters

Explanation: she walks 4 units east, 6 units up, then 4 units west. If each unit is 1 centimeter that is 16 centimeters.

Answer:

The term ideal machine refers to a hypothetical mechanical system in which energy and power are not lost or dissipated through friction, deformation, wear, or other inefficiencies. Hope this helped :))

Explanation:

Answer: I believe it would be "only velocity increases " because the mass is constant, if the velocity is increased, the kinetic energy must also increase.

Answer:

they both increase

Explanation:

kinetic energy is proportional to velocity squared. which mean if kinetic energy goes up the velocity goes up double as much and kinetic energy is exactly proportional to mass so as kinetic energy increases so does mass.

Answer:

This is True

Explanation:

I just did this exact unit in bio last week I hope this helps ;)

Answer:

X0   is the initial position of the object

V0 t   is the displacement of the object in time t due to its initial velocity

1/2 a t^2   is the displacement of the object in time t due to its acceleration

Adding the 3 terms (being careful with signs) gives the final position of the object at time t

Answer:

A seesaw

Explanation:

Answer:

a seesaw

Explanation:

Answer:

The rock takes 1.22 seconds to hit the ground

Explanation:

Free Fall Motion

A free-falling object falls under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. Free-falling objects do not encounter air resistance.

If an object is dropped from rest in a free-falling motion, it falls with a constant acceleration called the acceleration of gravity, which value is g = 9.8 m/s^2.

The final velocity of a free-falling object after a time t is given by:

vf=g.t

The distance traveled by a dropped object is:

[tex]\displaystyle y=\frac{gt^2}{2}[/tex]

If we know the height h from which the object was dropped, we can find the time it takes fo hit the ground:

[tex]\displaystyle t=\sqrt{\frac{2y}{g}}[/tex]

[tex]\displaystyle t=\sqrt{\frac{2\cdot 6}{9.8}}[/tex]

[tex]t=1.22\ sec.[/tex]

The rock takes 1.22 seconds to hit the ground

The time taken for the rock to hit the ground from the roof top is 1.1 seconds.

Given the data in the question;

Since the rock was initially at rest

Time taken for the rock to hit the ground; [tex]t = \ ?[/tex]

To determine the time taken for the rock to hit the ground, we use the second equation of motion:

[tex]s = u + \frac{1}{2}at^2[/tex]

Where s is the height or distance, u is the initial velocity, t is time taken and a is acceleration due to gravity( since the rock will be under gravity, [tex]a = g = 9.8m/s^2[/tex] )

We substitute our values into the equation

[tex]6m = 0 + [ \frac{1}{2}\ *\ 9.8m/s^2\ * t^2 ]\\\\6m = 4.9m/s^2 \ * t^2\\\\t^2 = \frac{6m}{4.9m/s^2}\\\\t = \sqrt{\frac{6m}{4.9m/s^2}} \\\\t = 1.1s[/tex]

Therefore, time taken for the rock to hit the ground from the roof top is 1.1 seconds.

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Answer:

The velocity with which the 5.0 kg dog has to run to have the same momentum as the 30 kg pig walking at 3.0 m/s is 18 m/s

Explanation:

Given that the mass of the dog = 5.0 kg

The mass of the pig = 30 kg

The speed with which the pig is walking = 3.0 m/s

We have that linear momentum = Mass × Velocity

Therefore, the momentum of the pig, m₁ = 30 kg × 3.0 m/s = 90 kg·m/s

m₁ = 90 kg·m/s

The momentum of the dog m₂ = Mass of the dog × Velocity of the dog

Given that m₁ is to be equal to m₂, we have;

m₁ = 90 kg·m/s = m₂ = Mass of the dog × Velocity of the dog

90 kg·m/s = m₂ = 5.0 kg × Velocity of the dog

m₂ = 5.0 kg × Velocity of the dog = 90 kg·m/s

5.0 kg × Velocity of the dog = 90 kg·m/s

Velocity of the dog = 90 kg·m/s/(5.0 kg) = 18 m/s

The velocity with which the 5.0 kg dog has to run to have the same momentum as the 30 kg pig walking at 3.0 m/s = 18 m/s.

Answer:

Explanation:

To find how long it took the ball to reach the end we use the formula

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

where

t is the time

d is the distance

v is the velocity

From the question

d = 18 m

v = 7.5 m/s

We have

[tex]t = \frac{18}{7.5} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

B: Distance and amount of charge

Explanation:

I am taking the quiz and this is the correct answer!

Electric potential depends on Distance and amount of charge.

The electric potential is defined as the amount of work needed to move a unit of electric charge from a reference point to the specific point in an electric field.

For any charge located in an electric field its electric potential depends on the type (positive or negative), amount of charge, and its position in the electric field.

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Answer:

The various organelles increase the energy used by the cell.

Explanation:

The various different parts of a cell, called as organelles, are beneficial to the cell in different ways such as energy production, protein synthesis, heredity information and packaging of proteins.

An organelle is a specialized part of the cell which serves a specific purpose within the cell. There are various organelles present within a cell and these organelles also vary depending on what kind of cell we are talking about, whether it be a plant or animal cell such as chloroplast and vacuole.

The different organelles in the cell perform different functions such as ribosomes synthesize proteins, mitochondria synthesize ATP, chloroplast involved in photosynthesis, and nucleus contain heredity information of the cell.

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Answer:

Two hundred fifty kilometer 250 km

The strong force is that force which cause the basic pieces of an atom to hold together. The weak force is radiation; this force is instrumental in things decaying. Electro-magnetism is the charged field which surrounds iron based materials or objects.

Force make objects movable and to change their state. Various kinds of forces in nature balances altogether every processes in nature. The energy we gain or lost is due to some kind of force and resultant displacement.

Force is an external agent acting on an object to change its state of motion or to deform it. Force is a vector quantity and is characterized by its magnitude and direction. There are various kinds of forces such as gravitational force, magnetic fore, frictional forces, nuclear force etc.

Its due to gravitational force by earth  that we are standing on the ground. We experience a weight due to this effect. Similarly the rotating current in the earth core generates the magnetic force of earth.

Every objects need a force to change its state or rest or motion. Similarly, the work done in any fields is the result of any force applied on the system.

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Answer:

The independent variable is the number of dry cells and the dependent variable is the time the bulb works.

Explanation:

In this exercise, you are asked to analyze the variables derived from Ómar's hypotypeis

  "If more dry cells are connected end-to-end, a light bulb will work longer because more energy is available."

In this hypothesis, the independent variable that is controlled by the researcher is the number of batteries to be connected in series.

The dependent variable that is measured by the researcher is how long the bulbs last.

When reviewing the different answers, the correct one is:

The independent variable is the number of dry cells and the dependent variable is the time the bulb works.

Answer:

It is A.

Explanation:

I did the test on Edg.

The answer would be true

Answer:

0.616

Explanation:

hve a wonderful weekend :) stay safe

Answer: the force applied to the object and the distance the object move Work can be calculated with this equation: Work equals Force x Distance.

Explanation:

Answer:

The Sun shines by turning hydrogen into helium in its core.

Explanation:

This process is called nuclear fusion. Fusion happens when lighter elements are forced together to become heavier elements. When this happens, a tremendous amount of energy is created.

Answer:

Her speed is 1.1 m/s, and her velocity is 0 m/s

Explanation:

Speed = Distance covered/Time

Given

Distance = 400m

Time = 6minutes = 6*60 = 360 secs

Substitute the given parameter into the formula;

Speed = 400/360

Speed = 1.1m/s

Since the track is a circular track, the displacement will be zero. She is only moving in a circular path (no direction)

Velocity = Displacement/Time

Velocity = 0/3600

Velocity = 0m/s

Hence her speed is 1.1 m/s, and her velocity is 0 m/s

Answer: Her speed is 1.1 m/s, and her velocity is 0 m/s

Explanation:

Answer:

1.) D. There is an equal and opposite force impacting the hand

2.) B. In all situations

3.) A. Velocity decreases to conserve momentum

4.) A. p=mv

5.) C. 100 kg*m/s

6.) C. The train cars move together in the direction the large car was moving

7.) D. m1v1+m2v2=0

8.) D. By drawing the vectors one right after the other

9.) B. Increase the mass and decrease the acceleration by the same numeric values

10.) D. The change in velocity over time

11.) B. The ball has no net force acting on it

12.) A. m1v1i+m2v2i=m1v1f+m2v2f

Explanation:

Did the practice

(1) The fighters wear padded gloves to protect their hands because there is an equal and opposite force impacting the hand.

(2) The two balls when collide in a closed system will exert equal and opposite force.

(3) When the mass of the object increases, the velocity of the object will decrease to conserve momentum.

(4) The equation for calculating the momentum of an object is P = mv

(5) The momentum of the ball is 100 kg.m/s

(6) The train cars move together in the direction the large car was moving.

(7) The conservation of momentum of two objects is [tex]m_1v_1 - m_2v_2= 0[/tex]

(8) The sum of two vectors can be found by  drawing the vectors perpendicular to each other.

(9) A closed system can be changed without changing the net force on the system by increase the mass and decrease the acceleration by the same numeric values.

(10) Acceleration is defined as the change in velocity over time.

(11) As ball rolls down at constant velocity, the ball has no net force acting on it.

(12) The conservation of momentum of the object is [tex]m_1v_1_i + m_2v_2_i = m_1v_1_f + m_2v_2_f[/tex]

(1)

According to Newton's third law of motion, action and reaction are equal and opposite.

The fighters wear padded gloves to protect their hands because there is an equal and opposite force impacting the hand.

(2)

Based on the principles of conservation of linear momentum, the two balls when collide in a closed system will exert equal and opposite force.

(3)

The principles of conservation of linear momentum is written as;

[tex]m_1u_1 + m_2u_2 = m_1v_1 + m_2v_2[/tex]

when the mass of the object increases, the velocity of the object will decrease to conserve momentum.

(4)

The equation for calculating the momentum of an object is written as;

P = mv

(5)

The momentum of the ball is calculated as follows;

P = mv

P = 50 x 2

P = 100 kg.m/s

(6)

For inelastic collision, the collided two objects move in the same direction after collision usually in the direction of heavier object.

The train cars move together in the direction the large car was moving.

(7)

The conservation of momentum of two objects is written as;

[tex]m_1v_1 = m_2v_2\\\\m_1v_1 - m_2v_2 = 0[/tex]

(8)

The sum of two vectors can be found by  drawing the vectors perpendicular to each other.

(9)

A closed system can be changed without changing the net force on the system by increase the mass and decrease the acceleration by the same numeric values.

(10)

Acceleration is defined as the change in velocity over time.

(11)

At constant velocity , acceleration = 0

∑F = ma

∑F = m x 0

∑F = 0

Thus, as ball rolls down at constant velocity, the ball has no net force acting on it.

(12)

The conservation of momentum of the object is written as;

[tex]m_1v_1_i + m_2v_2_i = m_1v_1_f + m_2v_2_f[/tex]

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Answer:

Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.

Explanation:

This is what your experiment was intended to demonstrate or investigate. "As temperature rises, honey's viscosity falls."

The experiment appears to investigate the relationship between honey viscosity and temperature, and after reading the question.

You must look at your experimental results here; it's likely that you discovered that viscosity does indeed drop as the temperature rises.

The final task at hand is to list the challenges and issues you encountered throughout the experiment and make suggestions for how to address them in order to conduct future experiments that are more successful.

Therefore, the temperature has a considerable influence on viscosity, however, the particular substance also affects this relationship.

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Answer:

r =  255.68 m

Explanation:

When a body moves in a circular path, an acceleration, due to constant change in its direction, is developed, known as centripetal acceleration. The centripetal acceleration acts towards the center of the circular path. The formula to calculate the centripetal acceleration is given as follows:

ac = v²/r

where,

ac = centripetal acceleration = 22 m/s²

v = tangential speed = 75 m/s

r = radius of curve = ?

Therefore,

22 m/s² = (75 m/s)²/r

r = (75 m/s)²/(22 m/s²)

r =  255.68 m

Answer:

Fun fact

An apple, potato, and onion all taste the same if you eat them with your nose plugged

Explanation: yes

Answer:

A

Explanation:

Answer: C

Explanation: Because if magma wasn't to be forced on earth's surface, the magma would come on earth and burn earth down.

Answer:

A. The car does not land in the river

B. 399.27 meters

Explanation:

The Cliff Height, s: 609.6 m

The velocity at the edge of the cliff, vₓ = 40.3 meters/second  (90 miles per hour)

The location of the Colorado River = 536.5 meters (1,760 feet) from the cliff base

The width of the river across = 300 feet average

The depth of the river = 40 feet

Assumption;

The direction of the vehicle = Horizontal

Vertical velocity of the vehicle = 0 m/s

The time, t, it takes the car to reach the level of the bottom of the cliff is given as follows;

s = [tex]u_y[/tex]·t + 1/2·g·t²

Where;

[tex]u_y[/tex] = The initial vertical velocity of the vehicle = 0

g = The acceleration due to gravity = 9.81 m/s²

Therefore, we have;

609.6 = 0×t + 1/2 × 9.81 × t²

609.6 = 1/2 × 9.81 × t²

t = √(2 × 609.6/9.81) ≈ 11.148 seconds

The horizontal distance, x, travelled by the car in the above calculated, 11.148 seconds, time is x = vₓ × t = 40.3 × 11.148 = 449.27 meters

Therefore, the horizontal distance from the cliff travelled by vehicle on landing from the base of the cliff = 449.27 meters

Given the river is located approximately 536.5 meters from cliff's base, the car does not land in the river

B. In order for the car to land 50 ft. from the edge of the river, the river has to be 449.27 - 50 ≈ 399.27 meters from the base of the cliff.