A car’s velocity changes from 35 m/s to stopped in 13 seconds. Calculate
acceleration.

The magnitude of the resultant vector is 13.9m.

The size of the resulting vector can be determined using the Pythagorean theorem. As you can see from these two examples, the result of adding three or more rectangular vectors is easy to determine using the Pythagorean theorem. The vectors should be added in a different order. Equation 2 Subtracts the vectors in opposite directions from each other to get the resulting vector.

Where vector B is in the opposite direction to vector A and R is the resulting vector. The resulting vector is defined as a single vector that produces the same effect as many vectors produced together. The size of a vector is the length of the vector. The absolute value of vector a is represented by |a|. For more information on vector sizes, see Vectors overview. The formulas for the sizes of 2D and 3D vectors in terms of coordinates are derived on this page.

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The first part of your question is purely biological. It’s actually been extensively studied in psychology. As for the second part of your question, if they are acting protective (do you mean like their walls go up and they start being mean?), it’s usually because they’re hurt because they had to overcome their own fear of rejection to ask you out or express themselves. Believe me, that is not easy. Don’t feel at fault, though, because guys should be able to handle themselves with more poise than that. Hopes this helps, and hang in there.

Answer:

can you give me brainliest on this account? its my new one

Explanation:

where is the graph mate ??????

Answer:

hjjjjnbb tuu tui amr sathe vat karu chu ka kya hua tha ki da best

Explanation:

jjjkkk

john and caraline go out for a drive one day. this graph reprresents the distance they travlled over time during what part of time are they not moving.

The new acceleration would be 24.0 m/s/s.

Acceleration is the rate of change of velocity of an object over time. It is a vector quantity, meaning that it has both magnitude and direction. Acceleration is the result of applying a force to an object, and can be described mathematically as the change in velocity (or speed) divided by the time it takes for the acceleration to occur. Acceleration can also be caused by a change in the direction of motion and is measured in meters per second squared (m/s2). It is an important concept in physics, and is used to describe motion in objects ranging from cars to planets.

The new acceleration would be 24.0 m/s/s. This is because the acceleration of an object is directly proportional to the force applied to it, and inversely proportional to its mass. Therefore, doubling the mass of the object would halve the acceleration, since the force applied to the object remains the same.

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Colloid osmotic pressure (COP) is an osmotic pressure gradient equal to c. capillary OP – interstitial OP.

Colloid osmotic pressure, also known as oncotic pressure, is the osmotic pressure exerted by proteins and other colloidal particles present in the blood plasma. It plays a vital role in maintaining the balance of fluids between the capillaries and the surrounding interstitial fluid.

The capillary osmotic pressure refers to the osmotic pressure exerted by the proteins and colloids within the capillaries, which tends to draw fluid back into the capillaries. On the other hand, the interstitial osmotic pressure represents the osmotic pressure in the interstitial fluid, which is typically lower than the capillary osmotic pressure.

The colloid osmotic pressure gradient is the difference between these two pressures: capillary osmotic pressure minus interstitial osmotic pressure. This gradient helps to counterbalance the hydrostatic pressure and maintain fluid balance by preventing excessive filtration of fluid from the capillaries into the interstitial space.

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The other pancakes are at various temperatures and Conduction refers to the mode of transfer of thermal energy that arise when the two bodies are in close contact.

The other pancakes are presumably at different temperatures in this scenario. If this is the case, then due to the thermal energy transfer, the pancake with the highest temperature should be the warmest at the bottom. Conduction is the process through which thermal energy is transferred when two bodies are in close proximity to one another.

Thermometers are used to measure the air's temperature. Common thermometers have a glass rod inside of which is a very thin tube. A liquid is delivered to the tube from a reservoir, or "bulb," at the thermometer's base. Sometimes the liquid is reddish alcohol, and other times it is mercury.

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Answer:

11 Ω

Explanation:

You need to add up all the resistances of the circuit, because it is a series connection here

R = 2,0 Ω + 4,0 Ω + 5,0 Ω = 11 Ω

Answer:

Apply the equation of motion

v

=

u

+

a

t

The initial velocity is

u

=

5.12

m

s

−

1

The acceleration is

a

=

0.933

m

s

−

2

The time is

t

=

5.7

s

The final velocity is

v

=

u

+

a

t

=

5.12

+

(

0.933

)

×

(

5.7

)

=

10.438

m

s

−

1

Answer:

90

Explanation:

cause

the chemical formula for periodic acid is HI04

I hope this helps you

:)

The speed that Jesse travels in still water is 8.5 km/h.

Distance = Speed × Time,

42 = (v + 2) × (T - 8) .... equation 1

T = time taken for the return trip.

42 = (v - 2) × T ....  eqaution 2

42 = (v + 2)T - 8(v + 2),

42 = vT + 2T - 8v - 16,

vT - 8v = -2T - 26.

42 = vT - 2T

(vT - 8v) - (vT - 2T) = (-2T - 26) - (42),

-8v + 2T = -2T - 68,

-8v = -2T - 68 - 2T,

-8v = -4T - 68.

2T = 4v - 34,

T = 2v - 17.

substitute the value of T back into the equation 2

42 = v(2v - 17) - 2(2v - 17),

42 = 2v² - 17v - 4v + 34,

0 = 2v² - 21v + 34.

v = (21 + 13) / 4 = 34 / 4 = 8.5

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Plato would conclude the mechanic has a justified belief. The fallacy in the example is equivocation.

According to Plato, the mechanic possesses a justified belief, as he can fix the car but cannot provide an explanation or knowledge of the process.

Regarding the fallacy in the example, it is equivocation. This occurs when a word or phrase is used with different meanings in an argument, causing confusion or misleading conclusions.

In this case, "star" is used to describe celestial objects and a famous person, leading to the incorrect conclusion that astronomers study Nicole Kidman.

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A circuit in which two light bulbs with equal resistance values are connected in parallel. if one of the light bulbs burns out, By factor (2) is the brightness of the other bulb multiplied.

When two identical light bulbs are connected in parallel, the total resistance of the circuit is half of the resistance of each individual bulb. If one of the bulbs burns out, the total resistance of the circuit doubles, which means that the current through the remaining bulb is halved. The brightness of a light bulb is directly proportional to the current passing through it, so the brightness of the remaining bulb will be reduced by a factor of 2.

I = V/R

If both bulbs have the same resistance R and the same voltage V is applied to each, then the current passing through each bulb is:

I = V/R

When both bulbs are connected in parallel, the total current in the circuit is the sum of the currents through each bulb:

\(I_t_o_t_a_l = I_1 + I_2\)

here,

\(I_1\) & \(I_2\) are currents passing by each bulb.

Reserving Ohm's law:-

\(I_t_o_t_a_l = V/R + V/R\)

Simplifying:-

\(I_t_o_t_a_l = 2V/R\)

The power P dissipated by each bulb is given by:

\(P = IV = V^2/R\)

So the brightness of each bulb is proportional to \(V^2\). If one bulb burns out, the voltage across the remaining bulb remains the same, but the resistance of the circuit doubles, so the current passing through the remaining bulb is halved. This means that the power dissipated by the remaining bulb is reduced by a factor of 2, which corresponds to a reduction in brightness by the same factor. Therefore, the brightness of the remaining bulb is reduced by a factor of 2.

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One astronomical unit (AU) is defined as the average distance between the Earth and the Sun, which is approximately 149.6 million kilometers. Therefore, to convert AU to kilometers, we can multiply the distance by 149.6 million.

The closest Venus comes to Earth is 0.28 AU, which is equal to 0.28 x 149.6 million = 41.888 million kilometers.

The closest Mars comes to Earth is 0.37 AU, which is equal to 0.37 x 149.6 million = 55.352 million kilometers.

Therefore, Venus comes about 13.464 million kilometers closer to Earth than Mars does.

What is permeability? b. pore spaces that are interconnected to allow the movement of air or water. Permeability is a measure of the ability of a material to allow the flow of fluids through it.

It is a measure of the interconnectedness of the pore spaces in a material. Materials with high permeability allow fluids to flow through them more easily than materials with low permeability.

What is the capillary fringe? b. material above the water table that is moistened by the rise of capillary water against gravity. The capillary fringe is the zone of soil or rock that is saturated with water due to capillary action.

Capillary action is the ability of water to move upwards against gravity through the narrow spaces between soil particles. The capillary fringe is typically a few centimeters thick, but it can be thicker in some soils.

Permeability is a measure of the ability of a material to allow the flow of fluids through it.

The capillary fringe is the zone of soil or rock that is saturated with water due to capillary action.

Permeability is important in a variety of applications, including groundwater recharge, well design, and the construction of dams and levees. The capillary fringe is important for plant growth, as it provides water to plants that are not located directly above the water table.

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Cloud-to-ground lightning is a natural electrical discharge that occurs during thunderstorms. The process starts with the buildup of charge separation in the storm clouds.

The tops of the clouds become positively charged while the bottom of the clouds become negatively charged. The negatively charged region at the bottom of the clouds induces a positive charge in the ground below it. This sets up a potential difference between the cloud and the ground, and when the potential difference becomes high enough, it triggers a flow of current in the form of lightning.

The lightning discharge serves to neutralize the charge separation and restore balance to the atmospheric electrical system. It does so by creating a pathway of ionized air molecules between the cloud and the ground. This pathway allows for the flow of current to occur, with electrons from the cloud moving toward the ground, neutralizing the positive charge induced in the ground.

The net charges of the lower cloud and the ground immediately prior to a cloud-to-ground lightning strike are negative and positive, respectively. The magnitude of the charges can vary depending on the specific conditions of the storm system, but in general, the bottom of the cloud has a larger negative charge compared to the positive charge induced in the ground below it.

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Explanation:

what is it of? I maybe able to help.

Answer:

if no mistaken then it is 300kN

Explanation:

Using SI units (the default if a system is not specified) 200T = 200000kg as the mass of the whale, it would weigh 1960kN in 1g Earth gravity.

On the Moon, the acceleration is 0.166g, to it would weigh about 330kN.

Answer:

Explanation:

Since the mass of a whale is 200 tons on earth, and the moon has a lighter gravity compared to the earth is about 1/6 as powerful,  the whale would weigh 33.33 tons with the last 3 repeating forever. so about 33 and one third ton on the moon.

This is talking about weight, which is how much it would take to lift this object, but the mass is the the same as mass isn't affected by gravity, only weight is affected by gravity.

Hope this helps!

Answer:

Divide by 1609

Explanation:

So to convert from m/s to m/s divide by 1609

Answer:

Conductor

Explanation:

A battery holds all of the energy in itself. So without the battery, the circuit cannot work.

Hope this helped, and please mark as Brainliest <3

Answer:

D. 75 watts

Explanation:

brainliest please? i've just answered 3 of your questions and they were all correct! :) i hope i helped!

Answer:

(D) =75 WATTS

Explanation:

p(power)=i(current)×v(voltage)

p = 0.625 × 120

p =75 watts

Following are the values:

Weight of the box: 147 N

Normal force: 127.05 N

Maximum static friction force: 40.66 N

Net force on the box: 57.83 N

Acceleration of the box: 3.855 m/\(s^2\)

To solve the problem, we can use the principles of Newtonian mechanics and consider the forces acting on the box.

1. Determine the gravitational force:

The weight of the box can be calculated as follows:

Weight = mass * acceleration due to gravity

Weight = 15 kg * 9.8 m/\(s^2\)

Weight = 147 N

2. Determine the normal force:

The normal force is the force exerted by the ramp perpendicular to its surface. It can be calculated using trigonometry:

Normal force = Weight * cos(angle of the ramp)

Normal force = 147 N * cos(30°)

Normal force = 127.05 N

3. Determine the maximum static friction force:

The maximum static friction force is given by:

Maximum static friction force = coefficient of static friction * normal force

Maximum static friction force = 0.32 * 127.05 N

Maximum static friction force = 40.66 N

4. Determine the net force on the box:

The net force acting on the box can be calculated by subtracting the friction force from the gravitational force:

Net force = Weight * sin(angle of the ramp) - friction force

Net force = 147 N * sin(30°) - 40.66 N

Net force = 98.49 N - 40.66 N

Net force = 57.83 N

5. Determine the acceleration of the box:

Using Newton's second law (F = ma), we can solve for the acceleration:

Net force = mass * acceleration

57.83 N = 15 kg * acceleration

acceleration = 57.83 N / 15 kg

acceleration = 3.855 m/\(s^2\)

Therefore, the box will experience an acceleration of 3.855 m/\(s^2\) while moving up the ramp.

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The Speed of water flowing by 2.76 diameter is 0.1634m/s.

Given -

Diameter= 2.76cm

Amount = 20l

time= 1.15 min

The flow of water is continuous and remains unaffected with distribution of mass.

To compute the speed of the water leaving the end of the hose-

V= 2.76 + 1= 3.76cm

For 20 l equivalent length is 3.76cm

For 1 l equivalent length(x) = 3.76/20

x= 0.188

\(Speed = distance /time\)

= 0.188/1.15

=0.1634m/s

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Given data

*The given mass of the uniform disk is m = 2.01 kg

*The given radius of the disk is r = 0.100 m

*The given frequency is

The formula for the angular momentum is given as

Substitute the known values in the above expression as

The claim that there is at least one number that is three greater than twice its fifth power can be proven using the Intermediate Value Theorem.

To apply the Intermediate Value Theorem, we need to show that the function f(x) = \(2x^5\)+ 3 is continuous on a closed interval [a, b] and takes on both positive and negative values.

1. Continuity:

The function f(x) = \(2x^5\) + 3 is a polynomial function, and polynomial functions are continuous for all real numbers. Therefore, f(x) is continuous on the entire real number line.

2. Positive and Negative Values:

To show that f(x) takes on both positive and negative values, we can consider the limits of f(x) as x approaches positive and negative infinity:

- As x approaches positive infinity, the term \(2x^5\) dominates the function, and f(x) approaches positive infinity.

- As x approaches negative infinity, the term \(2x^5\) dominates the function, and f(x) approaches negative infinity.

Since f(x) approaches both positive and negative infinity as x approaches infinity and negative infinity respectively, it must take on all values in between, including positive and negative values.

By the Intermediate Value Theorem, since f(x) is continuous on the real number line and takes on both positive and negative values, there must exist at least one number c for which f(c) = 0. In other words, there is at least one number that is three greater than twice its fifth power.

In conclusion, by satisfying the hypotheses of the Intermediate Value Theorem, we can prove the claim that there is at least one number that is three greater than twice its fifth power.

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The steel ball has an initial potential energy of 638 J, and it loses 280 J of kinetic energy as it sinks 0.700 m into the sand.

We can use the principle of conservation of energy to solve this problem. Initially, the steel ball has potential energy due to its height above the box of sand, and no kinetic energy. At the moment the ball hits the sand, all of its potential energy is converted to kinetic energy. As the ball sinks into the sand, some of its kinetic energy is converted to work done on the sand by the ball, which slows it down until it comes to a stop. At this point, all of the ball's kinetic energy has been converted to heat and sound energy.

Using the formula for gravitational potential energy, we can calculate the initial potential energy of the ball:

PE = mgh

PE = (4.90 kg)(9.81 m/s^2)(13.0 m)

PE = 638 J

This initial potential energy is equal to the kinetic energy of the ball just before it hits the sand:

KE = 1/2 m\(v^2\)

where v is the speed of the ball just before it hits the sand. Since the ball is dropped from rest, its initial speed is zero, and we can simplify the equation to:

KE = 1/2 \(mv^2\) = 1/2 (4.90 kg) \(v^2\)

Setting PE equal to KE and solving for v, we get:

v = √(2PE/m) = √(2gh) = √(2(9.81 m/\(s^2\))(13.0 m)) = 10.1 m/s

The ball sinks 0.700 m into the sand before stopping, so the work done by the ball on the sand is:

W = Fs

where F is the force exerted by the ball on the sand, and s is the distance over which the force is applied. Assuming the force is constant over the distance the ball sinks into the sand, we can approximate the force as:

F = ma

where a is the acceleration of the ball while it is sinking into the sand. We can calculate the acceleration using the formula:

\(v^2 = u^2 + 2as\)

where u is the initial velocity of the ball (10.1 m/s), v is its final velocity (zero), and s is the distance it sinks into the sand (0.700 m). Solving for a, we get:

a = (\(v^2 - u^2\)) / 2s = (0 - (10.1 m/s\()^2\)) / (2(0.700 m)) = -81.5 m/\(s^2\)

The negative sign indicates that the acceleration is in the opposite direction to the velocity of the ball (i.e. upward).

Using F = ma and the value of a we just calculated, we can find the force exerted by the ball on the sand:

F = ma = (4.90 kg)(-81.5 m/\(s^2\)) = -400 N

The negative sign indicates that the force is directed upward, opposite to the direction of the ball's motion.

Finally, we can calculate the work done by the ball on the sand:

W = Fs = (-400 N)(0.700 m) = -280 J

The negative sign indicates that the work is done by the ball on the sand, and is equal in magnitude to the decrease in the ball's kinetic energy as it sinks into the sand.

Therefore, the steel ball has an initial potential energy of 638 J, and it loses 280 J of kinetic energy as it sinks 0.700 m into the sand.

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Every photon has some energy within it and that energy is called photon energy.

The energy of photon is \(2.38\times10^{-18}\;\rm J\).

Given that, frequency of the photon is \(3.6\times10^{15}\;\rm Hz\) and Planck's constant is \(6.626\times {{10}^{-34}}\).

So the energy of the photon can be calculated by the given formula.

\(E=h\nu\)

Where \(h\) is plank's constant and \(\nu\) is the frequency of the photon.

By substituting the values in the above formula, the photon energy is,

\(E=6.626\times10^{-34}\times3.6\times10^{15}\;\rm J\)

\(E=2.38\times10^{-18}\;\rm J\)

The energy of photon is \(2.38\times10^{-18}\;\rm J\).

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The steel tank can be able to take in a greater air pressure than the balloon.

We have to know that air is a compressible fluid. We must also know that the balloon is an elastic material. The fact is that as you add more air to the balloon the material of the elastic would continue to be stretched.

On the other hand, the steel tank is not elastic but can be able to withstand a greater pressure as you add more air to the tank. The balloon would burst but the tank would not burst.

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Answer:

hypernova making a black hole, and merger of two neutron stars