Your car’s wheels are 65.0 cm in diameter, and the wheels are spinning at an angular velocity of 136 rad/s. How fast is your car moving (assume no slippage)?

Answer:

250N same direction

Explanation:

100+150 = 250N

same direction

The normal force on the block of steel of mass 11.1Kg at constant speed is 108.8 N.

Mass of steel block = 11.1 Kg

Normal force on the block = Force exerted by the surface on the block

= mass × acceleration due to gravity

= m × g

Taking the value of g as 9.8 m/s

= 11.1 × 9.8

= 108.78 N

By converting the answer to one decimal place, round the value to

= 108.8 N

Thus, the normal force on the block of steel by the Teflon surface round to one decimal place is 108.8 N.

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Advances in public health and medicine were some of the main reasons the population grew in the 18th century.

Public health focuses on illness prevention, whereas medicine focuses on the prevention, diagnosis, and treatment of patients. The primary instruments of the medical professional are medication, surgery, and other types of personalized intervention.

Vaccine invention and widespread usage, smallpox eradication, significant decreases in infectious disease outbreaks, and the rise and fall of various important chronic illnesses are among the contributions most noted for their influence on mortality and lifespan.

Public health evolved via trial and error and developing scientific medical knowledge, which was sometimes contentious and was sometimes prompted by war and natural calamities. The necessity for organized health protection arose as communal life evolved, particularly with urbanization and social changes.

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The skater's final angular velocity is approximately 9.86 rad/s.

The skater's final angular velocity can be calculated using the principle of conservation of angular momentum. The equation for angular momentum is given by:

L = Iω

where L is the angular momentum, I is the moment of inertia, and ω is the angular velocity.

Initially, the skater has an angular momentum of:

L_initial = I_initial * ω_initial

Substituting the given values:

L_initial = 2.12 kg m² * 3.25 rad/s

The skater's final angular momentum remains the same, as angular momentum is conserved:

L_final = L_initial

The final moment of inertia is given as 0.699 kg m². Therefore, the final angular velocity can be calculated as:

L_final = I_final * ω_final

0.699 kg m² * ω_final = 2.12 kg m² * 3.25 rad/s

Solving for ω_final:

ω_final = (2.12 kg m² * 3.25 rad/s) / 0.699 kg m²

Hence, the skater's final angular velocity is approximately 9.86 rad/s.

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Kiran's average speed from Tortula to Cactus was 58.78 miles per hour.

Let's use "x" miles per hour as Kiran's speed from Tortula to Cactus.

The time it takes Kiran to traverse the 250 miles between Tortula and Cactus is calculated as follows: time = distance / speed time = 250 / x

We also know that she upped her speed by 10 miles per hour throughout the 360-mile distance from Cactus to Dry Junction.

For that portion of the journey, let's designate her new speed "x+10" mi/h.

Her trip time is calculated as follows: time = distance / speed

time = 360 / (x+10)

Given that the entire journey lasted 11 hours, we can construct the following equation:

Time from Dry Junction to Cactus plus the time from Cactus to Tortula equals 11

250/x + 360/(x+10) = 11

We can now determine x:

250(x+10) + 360x = 11x(x+10)

0 - 400 - 2500 = 250x + 2500 + 360x = 11x2 + 110x

The quadratic equation is as follows: x = [400 sqrt(4002 - 4(11)(-2500))]

/ (2(11)) x = [400 ± sqrt(176000)]

/ 22

Speed cannot be negative, so we can disregard the negative result. Therefore, x = [400 + sqrt(176000)]

/ 22\sx ≈ 58.78

Kiran travelled between Tortula and Cactus at a speed of almost 58.78 miles per hour.

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Explanation:

Density = mass / volume

ρ = 5.7 g / 0.3 mL

ρ = 19 g/mL

Yes, it's pure gold.

Yes, it's pure gold.

According to the question:

Density = mass / volume.

ρ = 5.7 g / 0.3 mL.

ρ = 19 g/mL.

Hence, Yes it's pure gold.

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The initial speed of the second ball is c. 26.8 m/s

Speed is the distance per unit time moved by an object/

Since the ball is a projectile, to find the initial speed of the second ball, we need to find the maximum height of the first ball using

h = u²sin²Ф/2g where

Substituting the values of the variables into the equation, we have

h = u²sin²Ф/2g

h = (32 m/s)²× (sin57°)²/(2 × 9.8 m/s²)

h = 1024 m²/s²× (0.8387)²/(19.6 m/s²)

h = 1024 m²/s²× (0.7034)/(19.6 m/s²)

h = 720.249 m²/s²/(19.6 m/s²)

h = 36.75 m

Now, since a second projectile is thrown vertically to the same maximum height, we need to find its initial speed.

Using the equation of motion v² = u² - 2gh where

Making u subject of the formula, we have

u = √(v² + 2gh)

Substituting the values of the variables into the equation, we have

u = √(v² + 2gh)

u = √[(0 m/s)² + 2 × 9.8 m/s² × 36.75 m]

u = √[0 m²/s² + 19.6 m/s² × 36.75 m]

u = √[720.3 m²/s²]

u = 26.84 m/s

u ≅ 26.8 m/s

So, the initial speed of the second ball is c. 26.8 m/s

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Answer:

option(c) Epicenter

Explanation:

Hypocenter or the focus is the point where an earthquake or an underground explosion originates. center is the point that's directly above the focus on the face of the earth.

During earthquakes, utmost of the time it's the center that encounters topmost damage. The word center was deduced from the Latin word ‘ epicentrum ’ meaning positioned on a center.

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-27.7 x 10⁶ N is the net force on particle q₂..

Define a charged particle

A particle with an electric charge is said to be charged particle. It might be an ion, such as a molecule or atom having an excess or shortage of electrons in comparison to protons. It could also be an elementary particle like as an electron, proton, or another one that is thought to have the same charge (except antimatter).

F₁₂ = kq₁q₂/r²

k is Coulomb's constant

r is the distance between q₁ and q₂

q represent charges

F₁₂ = (9x 10⁹ x 18.1 x 10⁻³ x 11.2 x 10⁻³)/(0.28)²

F₁₂ = -23* 10⁶ N

F₂₃ = kq₂q₃/r²

F₂₃ = -(9 x 10⁹ x 11.3 x 10⁻³ x 5.67 x 10⁻³)/(0.35)²

F₂₃ = 4.7 x 10⁶ N

F(net) = F₁₂ + F₂₃

         = -23* 10⁶ N + -4.7 x 10⁶ N

         =  -27.7 x 10⁶ N

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Answer:

hydrogen

Explanation:

hope it helps bye.

Answer:

a) They both hit the ground at the same time

b) Watermelon will hit first, since its speed is faster than the pumpkin speed

c) h = 29,6 m

d)t = 3,02 sec

Explanation:

Equations for fall free movement are:

vf = v₀ + g*t       when   v₀ = 0   (dropped case)  vf = g*t

h = v₀*t + 1/2*g*t²

a) For both ( watermelon and pumpkin) the equation of speed is the same:

vf = g*t²    Both will have the same speed second through second

They both hit the ground at the same time

b) Now is watermelon is thrown with v₀ = 10 m/s

Watermelon will hit first since its speed is faster than the pumpkin speed

vf(watermelon) =  10 + g*t

vf₂ (pumpkin)   =  g*t

c) h = v₀*t + (1/2)*g*t²

h = (10)*1 + (1/2)*9,8*1

h = 10 + 19,6

h = 29,6 m

d)  h = g*t

t = 29,6/9,8

t = 3,02 sec

Answer:

0.00033333333

Explanation:

Answer:

Time=0.0275h ,you can change it into sec by multiplying it by 3600

Explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

Answer:

speed

Explanation:

The wave equation says that a waves speed is equal to its wavelength times is frequency.

Answer: Here you go, i hope this kinda helps.

Explanation:Disambiguation is just a fancy way of saying "asking clarifying questions".

Watson Assistant replies to user's questions based on a confidence score.

Sometimes the customer's question could be interpreted in two or three different ways.

For example, if you say you'd like to "book a table for 8", the assistant is able to ask a clarifying question:

Did you mean booking a table for 8PM, 8AM, or booking a table for 8 guests?

Watson Assistant will ask the question when its confidence score is divided between a few options to ensure that your customers get exactly the right service they need.

Answer:

2.6x10^{10}

Explanation:

please do follow me

The angular velocity to nearest degree per second, gives:

A) 21584°/s

B) 79217°/s

C) 215848°/s

D) 551180°/s

The formula to convert frequency (f) in Hertz (Hz) to angular velocity (ω) in radians per second is:

ω = 2πf

To convert the result to degrees per second, we can multiply by 180/π, which is the conversion factor between radians and degrees.

Using this formula, we get:

A) ω = 2π × 60 = 376.99 rad/s ≈ 21584°/s

B) ω = 2π × 220 = 1382.94 rad/s ≈ 79217°/s

C) ω = 2π × 600 = 3769.91 rad/s ≈ 215848°/s

D) ω = 2π × 1.53 × 10^3 = 9621.89 rad/s ≈ 551180°/s

Rounding these results to the nearest degree per second, we get:

A) 21584°/s

B) 79217°/s

C) 215848°/s

D) 551180°/s

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The difference in the elevation is 4505 meters.

A geographic location's elevation is its height above or below a fixed reference point, most commonly a reference geoid, which is a mathematical model of the Earth's sea level as an equipotential gravitational surface.

Elevations are classified into four types: front elevation, side elevation, rear elevation, and split elevation.

In this case, the lowest point in Death Valley is 85 m below sea level. The summit of nearby Mt. Whitney has an elevation of 4420 m above sea level. The difference will be:

= Highest point - Lowest point

= 4420 - (-85)

= 4420 + 85

= 4505 m

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Complete question

The lowest point in Death Valley is 85 m below sea level. The summit of nearby Mt. Whitney has an elevation of 4420 m above sea level. What is the difference in the elevation?

ANSWER:

85.0 kg

STEP-BY-STEP EXPLANATION:

We have that the more mass the more it weighs. The weight of a body is not the same on Earth as it is on the Moon because the Moon is smaller than the Earth and has less mass and the force with which it attracts bodies is less (that is, the acceleration of gravity is different). But despite this the mass of the body does not vary even if we are in different places such as the Earth or the Moon.

Therefore, the mass would be the same, 85.0 kg

Answer:

D. Less rain and snow.  

Explanation:

A factor that can be a account for a drop in the water table is, less rain and snow. to topography, water tables is influenced by lot of factors, including the geology, weather, ground cover.

Answer:

Primary Succession is defined as the type of ecological succession, which occurs or start from the barren, uninhabited and unoccupied areas, such as the newly formed pond, rock, dunes, etc., while such kind of succession, which occurs in the area where there was the existence of life previously but got abandoned due to natural disturbances like deforestation, natural calamities (flood, earthquake, tsunami), the field with no vegetation is known as Secondary Succession

Explanation:

Some examples of primary succession include the formation of a new ecosystem after a volcano, glacier outbursts, or a nuclear explosion. Some examples of secondary succession include succession after fire, harvesting, logging, or abandonment of land or the renewal after a disease outbreak

i hope this answer helps :)

Answer:

A. 1.24micro farad

B. 1.20x10^7V/m

Explanation:

See attached file

1.24micro farad is the capacitance per square centimeter of such a cell wall

In its normal resting state, a cell has a potential difference of 85mV across its membrane. the electric field inside this membrane is  1.20x10^7V/m.

The cell membrane  is a selectively semi-permeable membrane  surrounds the cytoplasm, the primary function of the  membrane is to provide protection the integrity of the interior of the cell.

The cell membrane is called as multifaceted membrane which envelopes a cell's cytoplasm and help the cell to maintain the its shape.

Cell membrane is composed of Proteins and lipids where the mix or ratio of proteins and lipids can vary depending on the function of a specific cell.

Phospholipids are the crucial components of cell membranes which are arranged to form a lipid bilayer and certain substances can diffuse through the membrane to the cell's interior.

some cell organelles are surrounded by cell membranes, The nucleus and mitochondria have its own membrane.

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(a) The distance  the car travels during your reaction time is 2.83 m.

(b) The total distance traveled by the car before stopping is 97.8 m

To find the distance traveled during the reaction time, we need to find the velocity after the reaction time and then use it to find the distance traveled.

78 km/h = 78,000 m/h ÷ 3600 s/h = 21.67 m/s

After the reaction time, the velocity is equal to the initial velocity plus the acceleration during the reaction time:

v = v₀ + at

v = 21.67 m/s - (4.6 m/s²)(0.130 s)

v = 21.67 m/s - 0.599 m/s

Finally, the distance traveled during the reaction time is given by:

d = v₀t  + ¹/₂at²

d  = 21.67  x 0.130 s    +    ¹/₂(-4.6) x (0.130)²

d = 2.83 m

B) To find the total distance traveled before stopping, we need to find the time it takes for the velocity to reach 0.

The velocity after the reaction time is equal to 21.67 m/s - 0.599 m/s = 21.07 m/s.

Using the equation v = v₀ + at, we can find the time it takes to come to a stop:

t = -v₀ / a

t = -21.07 / -4.6

t = 4.58 s

The total distance traveled can be found using the equation:

d =  v₀t  + ¹/₂at²

d  = 21.67 x 4.58  + ¹/₂(-4.6) x 4.58

d = 97.8 m

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Answer:

22.22 m/s

Explanation:

Your goal is to cancel the terms so that you are only left with m and s:

\(\frac{80km}{h} *\frac{h}{60min}*\frac{min}{s}*\frac{1000m}{km}\\ \\\)

= 22.2222...m/s

Answer:

Inner Transition Metals

Explanation:

The lanthanides and actinides belong to the inner transition metals.

​

Answer:

inner transition elements

Explanation:

In the periodic table to which the lanthanides and actinides metals belong to is inner transition elements because these elements are present in between transition elements.

The coefficient of kinetic friction on material B is greater than material A, causing an increase in net force on block 2.

The coefficient of kinetic friction between block 1 and material B is greater than that between block 1 and material A, which causes an increase in the net force acting on block 2 as block 1 slides from material A to material B.

This is because the increased friction on material B results in a greater opposing force to the motion of block 1, which in turn causes a greater tension force on the string and therefore a greater net force on block 2.

This effect is due to the properties of the different materials and the interaction between the materials and the block, which ultimately determine the amount of friction present and the resulting force acting on the system.

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Answer:

the ans is D.... good luck