1. If a rock is dropped from a height and hits the ground in just 1 second, the speed at impact is 10 m/s. What would
happen to the speed if it is dropped from a higher height?
a. Its final speed would remain the same because its rate of acceleration would remain the same.
b. Its final speed would increase because the acceleration due to gravity remains the same.
c. Its final speed would remain the same because its rate of acceleration would decrease.
d. Its final speed would increase because the acceleration due to gravity would decrease.

The equation for the turtle's position as a function of time can be represented as x(t) = vt + x₀, where x(t) is position as a function of time, v is velocity and t is time.  This equation means that the turtle's position (x) is equal to its velocity (v) multiplied by the time (t).

For example, if the turtle is crawling with a velocity of 2 units per second, after 1 second, its position would be 2 units (2 * 1). After 2 seconds, its position would be 4 units (2 * 2), and so on.

It's important to note that this equation assumes that the turtle's motion is along a straight line and that its velocity remains constant. If there are any changes in velocity or if the turtle changes direction, a different equation would be needed to represent its position as a function of time.

Learn more about velocity: https://brainly.com/question/24909693

#SPJ11

Answer:

7 seconds

Explanation:

please see paper!

vf² = vo²+2ad

vf=vo+at

vf²=3.5²+2.2.75

vf²=312.25

vf=17.67 m/s

vf=vo+at

17.67 = 3.5 +2t

t=7.085 s

The soil loss in  \(Mg ha^{-1}\) (Ton/ha) if the bulk density of the soil is 1.01  \(Mg m^{-3}\)  is option a. 0.202 Mg/ha.

For expressing the soil loss in \(Mg ha^{-1}\), need to convert the units appropriately. First, convert the soil loss from millimetres (mm) to meters (m) by dividing it by 1,000 (1 mm = 0.001 m). Thus, the soil loss is 0.0002 m.

Next, calculate the volume of soil lost per unit area (ha). The volume can be obtained by multiplying the soil loss (0.0002 m) by the area (ha). Since the bulk density of the soil is given as 1.01 \(Mg m^{-3}\), can convert the volume to mass by multiplying it by the bulk density.

Using the formula:

Soil loss (Mg ha-1) = Soil loss (m) × Bulk density (\(Mg m^{-3}\)) × Area (ha)

Substituting the values:

Soil loss (\(Mg ha-1\)) = 0.0002 m × 1.01 \(Mg m^{-3}\) × 1 ha

Calculating the result:

Soil loss (\(Mg ha-1\)) = 0.0002 × 1.01 = 0.000202 \(Mg ha-1\)

Therefore, the correct answer is option a. 0.202 Mg/ha.

Learn more about density here:

https://brainly.com/question/952755

#SPJ11

Answer:The four main branches of physical science are astronomy, physics, chemistry, and the Earth sciences, which include meteorology and geology.

Answer:

Chemistry, physics, astronomy and earth science.

Explanation:

The four main categories of physical sciences are chemistry, physics and earth science and astronomy. Life sciences deal with living organisms and behavioral sciences deals with the interactions between organisms in the natural world.

Answer:

polar covalent bonding

Explanation:

Water (H2O) is polar because of the bent shape of the molecule. The shape means most of the negative charge from the oxygen on side of the molecule and the positive charge of the hydrogen atoms is on the other side of the molecule. This is an example of polar covalent chemical bonding.

Correct option is C, deductive reasoning involves proving a event occurs, and assuming something about the mechanisms leading to that conclusion.

In deductive reasoning, a conclusion is drawn from the agreement of multiple premises that are frequently assumed to be true. Deductive reasoning is also referred to as top-down reasoning. Deductive reasoning is built on making logical assumptions and drawing conclusions from them.

It is predicated on a broad assertion or hypothesis that is assumed to be true (sometimes referred to as a premise). In order to arrive at a clear, logical conclusion, the premise is used. The if/then statement is a typical illustration. Deductive reasoning informs us that A Equals C if A = B and B = C.

To learn more about deductive reasoning from given link

https://brainly.com/question/7284582

#SPJ1

Answer:

The answer is

Explanation:

The mass of an object given it's momentum and velocity / speed can be found by using the formula

\(m = \frac{p}{v} \\ \)

where

m is the mass

p is the momentum

v is the speed or velocity

From the question

p = 280 kg/ms

v = 10 m/s

The mass of the object is

\(m = \frac{280}{10} = 28 \\ \)

We have the final answer as

Hope this helps you

   The value of the acceleration of the earth toward it when it accelerates toward the earth with 9.8m/s² is a = 7.35×10-²³m/s².

  Acceleration is defined as the second derivative of displacement or the derivative of velocity:

a = d/dt(dS/dt) = dV/st.

   It is the rate of change of velocity, it generates a constant change over time.

   Forces are the definition of Newton's second law, which is stated under the relation:

∑ Force = mass × acceleration.

  In other words, force is the origin of motion since it generates acceleration in a system.

   In this case we must complete the statement:

"A student with mass 45 kg jumps off a high diving board. Using 6. 0×1024 kg for the mass of the earth, what is the acceleration of the earth toward her as she accelerates toward the earth with an acceleration of 9. 8 m/s2 ? assume that the net force on the earth is the force of gravity she exerts on it."

  We determine the Force of the student:

F = ma

F = 45kg * 9.8m/s².

F = 441N

  Now we go to the acceleration of the earth:

a = F/m

a = 441N / 6×10²⁴ Kg

a = 7.35×10-²³m/s².

Learn more about Forces in:

https://brainly.com/question/11539787

#SPJ4

Answer:

the answer is gas if I'm not mistaken.

Explanation:

Don't come at me if I'm wrong please :')

The center of a 1.5 cm wide loop has a magnetic field of 3.0 mT. About 0.3 Amperes of current flow through the loop. A 3.0 mT magnetic field is present about 0.2 meters away from the wire.

To solve this problem, we can use the formula for the magnetic field produced by a current-carrying loop and the formula for the magnetic field produced by a current-carrying wire.

Answer of the following questions are below :  

(a) The magnetic field at the center of a current-carrying loop is given by the formula:

\(B = \frac{\mu_0 \cdot I \cdot N}{2 \cdot R}\)

Where B is the magnetic field, μ₀ is the permeability of free space (4π × 10⁻⁷ T·m/A), I is the current, N is the number of turns in the loop, and R is the radius of the loop.

We are given that the magnetic field is 3.0 mT (3.0 × 10⁻³ T) and the radius of the loop is 1.5 cm (0.015 m).

Substituting these values into the formula, we can solve for the current:

\(3.0 \times 10^{-3} \, \text{T} = \frac{4\pi \times 10^{-7} \, \text{T}\cdot\text{m/A} \cdot I}{2 \cdot 0.015 \, \text{m}}\)

Simplifying the equation, we find:

\(I = \frac{(3.0 \times 10^{-3} \, \text{T}) \cdot (2 \cdot 0.015 \, \text{m})}{4\pi \times 10^{-7} \, \text{T}\cdot\text{m/A}}\)

Calculating this expression, we get:

I ≈ 0.3 A

Therefore, the current in the loop is approximately 0.3 Amperes.

(b) The magnetic field produced by a long straight wire carrying current is given by the formula:

\(B = \frac{\mu_0 \cdot I}{2\pi \cdot r}\)

Where B is the magnetic field, μ₀ is the permeability of free space (4π × 10⁻⁷ T·m/A), I is the current, and r is the distance from the wire.

We are given that the magnetic field is 3.0 mT (3.0 × 10⁻³ T).

Substituting these values into the formula, we can solve for the distance from the wire:

\(3.0 \times 10^{-3} \, \text{T} = \frac{4\pi \times 10^{-7} \, \text{T} \cdot \text{m/A} \cdot I}{2\pi \cdot r}\)

Simplifying the equation, we find:

\(r = \frac{4\pi \times 10^{-7} \, \text{T} \cdot \text{m/A} \cdot I}{2\pi \cdot (3.0 \times 10^{-3} \, \text{T})}\)

Calculating this expression, we get:

r ≈ 0.2 m

Therefore, the magnetic field of 3.0 mT is found at a distance of approximately 0.2 meters from the wire.

To know more about the current-carrying loop refer here :

https://brainly.com/question/12495736#

#SPJ11

Answer:

Explanation:

It starts out as chemical potential energy and when the switch is turned on, the chemical energy is transformed into electrical energy.

potential chemical energy

electrical energy.

Answer:

the average speed in annual work out is 46.5

Answer:

One of the more important properties of sound is that its speed is nearly independent of frequency. ... Therefore, the relationship between f and λ is inverse: The higher the frequency, the shorter the wavelength of a sound wave. The speed of sound can change when sound travels from one medium to another.

Answer:

F = 20 N

Explanation:

Given that,

Mass of the football, m = 2 kg

Initial speed, u = 0

Final speed,v = 5 m/s

The time of contact, t = 0.5 s

We need to found the average force applied by the footballer  on the football. We can find it using the formula.

\(F=\dfrac{m(v-u)}{t}\\\\F=\dfrac{2\times (5-0)}{0.5}\\\\F=20\ N\)

So, the required force is 20 N.

Answer:

F=20

Explanation:

f=20

To determine the mass of granite, we must first understand the definition of density. Density is defined as the amount of matter present in a substance per unit volume.

We use the formula: density = mass/volume to calculate the mass of a substance given its density and volume. To calculate the mass of 54.3 m³ of granite, we use the following steps:

Given Density of granite = 2700 kg/m³Given volume of granite = 54.3 m³Let us substitute the values in the formula of density:density = mass/volume Solving for mass, we get:mass = density × volume Substitute the given values of density and volume into the formula:mass = 2700 kg/m³ × 54.3 m³

The m³ unit in the volume cancels out, leaving us with kg as the unit for mass.

We then solve the equation to get the mass:mass = 146,610 kg

Therefore, the mass of 54.3 m³ of granite is 146,610 kg.

For such more question on density

https://brainly.com/question/26364788

#SPJ8

Answer:

ΔV = 9

Explanation:

Given your speed data, we can simply think about it graphically and calculate the slope. When your data is layed out on a graph there is a linear relationship, so it has a constant slope. We can calculate slope easily with your data using y2-y1/x2-x1 so 18-9/2-1. This gets us a constant change in velocity (slope) of 9.

Therefore, the sensitivity of the Bourden gauge in terms of scale length per bar (i.e., mm/bar) is 1.6 mm/bar.

The sensitivity of a bourdon gauge in terms of scale length per bar is the rate of change of the bourdon gauge's reading for a unit change in the applied pressure. The formula to calculate the sensitivity of bourdon gauge is:Sensitivity = Total length of scale / Pressure range Sensitivity = (270/360) × π × D / PWhere D = diameter of the dial and P = Pressure rangeThe diameter of the circular dial can be calculated as follows:D = Length of pointer + Length of pivot + 2 × OverrunD = 50 + 10 + 2 × 5D = 70 mmThe pressure range of the gauge is given as 0 to 15 bar. Thus, P = 15 bar.Substituting these values in the above formula, we get: Sensitivity = (270/360) × π × 70 / 15Sensitivity = 1.6 mm/bar. Therefore, the sensitivity of the Bourden gauge in terms of scale length per bar (i.e., mm/bar) is 1.6 mm/bar.

To know more about pressure gauge visit:

https://brainly.com/question/31540347

#SPJ11

Answer:

B

Explanation:

Remember:

F = m * a

 =  10 * 2  = 20 N

Isaac Newton's Law on Universal Gravitation provided the first formal definition of the gravitational constant. One of nature's fundamental constants, whose value is (6.6743 0.00015) x 10-11 m3 kg-1 s-2.

If there is a difference in mass between any two things or particles, gravity will tend to pull them in that direction.

The reason it is known as Newton's Law on Gravitation is that it applies to all mass-bearing things, such as the sun, moon, earth, and an apple, and these bodies will all be subject to its effects.

To know more about gravitation visit:

brainly.com/question/3009841

#SPJ4

Answer:

33 Newton upwards to get a net force of zero.

Answer:

The answer is 33 newtons with a net force of 0

Explanation:

The correct option is 20000 kg m /s.

What is Momentum ?

Momentum is a concept in physics that describes an object's tendency to continue moving in its current direction at a constant speed. It is a vector quantity, meaning it has both magnitude and direction. The momentum of an object is defined as the product of its mass and velocity, and is represented by the equation: p = mv, where p is momentum, m is mass, and v is velocity.

In simple terms, momentum can be thought of as the "motion" of an object, and the larger the mass and velocity of an object, the greater its momentum. Momentum is a conserved quantity, which means that the total momentum of a system remains constant unless acted upon by an external force.

Given , Mass = 1000kg

Speed = 20 m/s

momentum = mv = 20000 kg m /s

To learn more about the momentum , click the given link ; brainly.com/question/86444

#SPJ1

Answer:

Distance from the moon= dm= 384,403km

A quarter diameter= dq= 2.3 cm= 0.000023km

No of quarters= 16,713,173, 913

To convert cm into km divide cm by 100 and then by 1000

as

1m= 100cm

1km= 1000m

Therefore

2.3/100= 0.023 m

And

0.023/1000= 0.000023 km

Dividing the distance from the moon by the diameter of the quarter laid end to end would give the number of the quarters needed.

No. of quarters= Distance from the moon/ Diameter of the quarter

                             = 384,403km/0.000023 km

                             =       16,713,173,913.043

Rounding  16,713,173,913.043 gives 16,713,173,913 quarters

Explanation:

Brainliest, please!

Answer:

mass = 40 kg

g = 9.8 m/s²

weight = mg

= 40 x 9.8

= 392 N

The container that would have the least volume is container B.

Evaporation is the process by which a liquid changes into a vapor (a gaseous state) due to the conversion of its surface molecules to a gaseous state.

This occurs when the energy of the liquid's surface molecules exceeds the energy required for the molecules to escape from the liquid's surface into the air as a vapor.

The rate of evaporation is influenced by several factors, including temperature, wind speed, humidity, and the surface area of the liquid. For example, increasing the temperature of a liquid or exposing more of its surface area to the air will increase the rate of evaporation.

Learn more about evaporation:https://brainly.com/question/5019199

#SPJ1

Answer:

B mate

Explanation:

The total work (W tot) done on the block by all forces as the block moves a distance L up the incline can be calculated using the work-energy principle.

1. Identify the forces acting on the block: gravity (F_ g) and the applied force (F_ a) parallel to the incline.
2. Calculate the work done by each force. The work done by a force is given by the formula W = F × d × cos(θ), where F is the force, d is the distance, and θ is the angle between the force and the displacement.
3. For the applied force (F_ a), the angle θ is 0° since it is parallel to the incline. So, the work done by F_ a is W_ a = F_ a × L × cos(0°) = F_ a × L.
4. For the gravitational force (F_ g), the angle θ is 90° minus the angle of the incline (α) since it acts downward. The component of F_ g parallel to the incline is F_ g × sin(α).

So, the work done by F _g is W_ g = F_ g × L × cos(90° - α) = - F_ g × L × sin(α). (The negative sign indicates that the gravitational force opposes the motion of the block.)
5. Sum the work done by each force to find the total work: W_tot = W_a + W_g = F_a × L - F_g × L × sin(α).

So, the total work (W tot) done on the block by all forces as it moves a distance L up the incline is

W tot = F a × L - F g × L × sin(α), expressed in terms of quantities given in the problem introduction.

To Learn more :

https://brainly.com/question/30941675

#SPJ11

The coefficient of static friction between the tires and the road must be at least 0.61 for a car to round a level curve of radius 130 mm at a speed of 118 km/h.

The centripetal force required for a car to negotiate a level curve is provided by the force of friction between the tires and the road. This force is given by the formula:

f = mv²/r

Where f is the centripetal force, m is the mass of the car, v is its velocity, and r is the radius of the curve.

For the car to successfully round the curve, the force of friction between the tires and the road must be greater than or equal to this centripetal force. The maximum force of static friction between the tires and the road is given by:

Fₛ = μsN

Where μs is the coefficient of static friction, and N is the normal force.

The normal force is equal to the weight of the car, which is given by:

N = mg

Where g is the acceleration due to gravity.

Combining the above equations, we get:

μs ≥ v²/(rg)

Substituting the given values, we get:

μs ≥ (118×10³/3600)² / [(130/1000)×9.81]

μs ≥ 0.61

learn more about centripetal force here:

https://brainly.com/question/11324711

#SPJ11

The voltage across the resistor increases because extra electron gained by the LDR when the light is shone on it.

Increase in the voltage can occur due to some of the following reasons.

From Ohm's law voltage is directly proportional to current flowing in a circuit.

V ∝ I

The voltage across the resistor increases because extra electron gained by the LDR when the light is shone on it.

Learn more about voltage here: https://brainly.com/question/1176850

#SPJ1

Answer:

NAFTA is the North American Free Trade Agreement was established to remove barriers between trading countries Canada, Mexico, and the U.S.

Explanation:

The U.S. electronics manufacturers were encouraged to move operations to Mexico by NAFTA

yes could the half of the moon that faces the earth ever be completely dark

The moon is the captivating celestial body that can be observed through eyes, it is the biggest heavenly body in the night sky which changes its shape constantly.

The waning and waxing of moon cause the changes in face of the moon. The waning and waxing of the moon is directly related to the rotation of the moon.

The rotation of the moon is an extraordinary occurrence as the time the moon takes for completely orbiting the earth is exactly the time it takes to rotate once on its own axis.

Both the actions take 27.3 days to complete. This is unique feature of the moon is rare when compared to other celestial bodies. The energy given to the moon comes from Earth's rotation and to compensate, our planet is slowing down.

For more details regarding moon, visit

https://brainly.com/question/3440810

#SPJ6