PLEASE HELP!!!!!!!!!!!
A 12 volt car battery produces more current than a 1.5 volt battery for a TV remote because


A. The TV remote has a greater difference in electric potential energy


B. The car battery has more kinetic energy


C. The TV remote has more kinetic energy


D. The car battery has a greater difference in electric potential energy

Light with a wavelength in the film's thickness t exhibits constructive interference.

What exactly is a damaging interference?

When two waves are entirely out of phase (a peak is located in the middle of two waves), destructive interference ensues. In other words, destructive interference occurs when two waves 180 degrees or radians apart from each other cancel each other out.

What causes waves to interfere destructively?

When two waves' maxima are 180 degrees out of phase, destructive interference happens: a positive displacement of one wave is precisely cancelled by a negative displacement of the other wave. The resultant wave has zero amplitude.

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Answer:

The center of mass is the point of an object where all the mass can be considered to be concentrated. ... If the objects center of gravity is above the area of support, the object will remain upright.

V1/T1=V2/T2

1.50/315=V2/215

315V2=322.5

V2=1.02L

The correct option is: "none of these statements is true".

To find out the correct option among all the options, we need to know more about the electron and proton.

Thus, we can conclude that the option (e) is correct.

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The speed of roller coaster would be 14.8 m/s

To calculate the speed of the roller coaster at point 4, we can use the conservation of energy principle, which states that the initial energy of the system (potential energy + kinetic energy) is equal to the final energy of the system.

Assuming that point 1 is the highest point of the roller coaster and that there is no friction or other energy losses, we can use the following equation:

                           mgh = (1/2)mv^2

where,

m is the mass of the roller coaster,

g is the acceleration due to gravity,

h is the height of point 1 above point 4,

v is the speed of the roller coaster at point 4.

Solving for v, we get:

                                       v = sqrt(2gh)

where,

h is the vertical distance between point 1 and point 4.

Now, we need to find the value of h. The thermal energy generated in going from point 1 to point 4 is not directly related to the height difference, but we can assume that all of the potential energy at point 1 is converted to thermal energy at point 4, and that the roller coaster loses no energy due to friction or other factors.

Therefore, we can use the formula for potential energy:

                                     mgh = 134102 J

Solving for h, we get:

h = 134102 J / (mg)

Substituting the given values, we get:

h = 134102 J / (702 kg x 9.81 m/s^2) = 19.1 m

Finally, substituting the value of h into the equation for speed, we get:

v = sqrt(2 x 9.81 m/s^2 x 19.1 m) = 14.8 m/s

Therefore, the roller coaster would be going 14.8 m/s at point 4.

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Answer:

getting shocked

Explanation:

i didnt really get the answer really much but i hope this helps

Answer:

Hair standing up

Explanation:

When there is a lot of static electricity, your hair stands up.

Answer:

hi zzayn i will solve this later

Explanation:

Let's establish that x= number of polio vaccinations and y=number of measles vaccinations.

Since Dr. P gave a total of 60 VACCINATIONS, we know that x+y=60. (This is equation #1)

We also know that Dr. P gave a total of 184 DOSES of the vaccinations and that the polio vaccine has 4 doses, while the measles vaccine has 2 doses. This means that our second equation is 4x+2y=184. (This is equation #2)

You can get either variable (x or y) by itself from equation #1. I always choose x.

x+y=60

-y.     -y

x=60-y

Now we can plug our x value into equation #2.

4x+2y=184

4(60-y)+2y=184

240-4y+2y=184

240-2y=184

-240    -240

-2y=-56

/-2 /-2

y=28 measles vaccines

So we know that Dr. P administered 28 measles vaccines. We need to plug our y value back into equation #1 (or, to make it easier, our switched around equation) to find the number of polio vaccines.

x=60-y

x=60-28

x=32 polio vaccines

Answer:

zayn talk to meeee

Explanation:

The calculated value is AO=3.2sec.

The limit of average velocity as elapsed time approaches zero, or the derivative of x with respect to t: v (t) = d d t x (t), is the instantaneous velocity of an object. v (t) equals d d t x (t). Instantaneous velocity is a vector having a dimension of length per time, similar to average velocity.

In contrast to instantaneous velocity, which is determined by the slope of the tangent line, average velocity is defined as the change in position (or displacement) during the course of transit.

So, we obtain

cosθ= 5/4

= 4AO

So, we obtain AO=3.2sec.

The complete question is- Position-time graph is shown, which is a semicircle from t=2 to t=8 sec. Find time t at which the instantaneous velocity, is equal to average velocity over first t seconds.

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To find the index of refraction of the glass, we can use Snell's Law in the form: n1 * sin(critical angle) = n2 * sin(90°) Since the critical angle occurs when light is refracted from the glass into the air, n1 represents the index of refraction of the glass, and n2 represents the index of refraction of air (which is approximately 1).

Rearranging the formula:

n1 = n2 * sin(90°) / sin(critical angle)

Plugging in the given values:

n1 = 1 * sin(90°) / sin(39.0°)
n1 ≈ 1 / 0.62932
n1 ≈ 1.59

So, the index of refraction of the glass is approximately 1.59, which corresponds to option D).

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The final velocity of the truck after the collision is 12 m/s in the same direction (east) as before the collision.

To determine the final velocity of the truck after the collision, we can use the principle of conservation of momentum.

The initial momentum of the system (truck + minivan) before the collision is given by:

Initial momentum = (mass of truck) × (velocity of truck) + (mass of minivan) × (velocity of minivan)

                  = (3500 kg) × (20.0 m/s) + (2000 kg) × (0 m/s)  [since the minivan is parked]

Since the minivan is stationary before the collision, its initial velocity is 0 m/s.

The final momentum of the system after the collision is given by:

Final momentum = (mass of truck) × (final velocity of truck) + (mass of minivan) × (final velocity of minivan)

                 = (3500 kg) × (final velocity of truck) + (2000 kg) × (14.0 m/s)  [given]

According to the conservation of momentum, the initial momentum of the system should be equal to the final momentum:

Initial momentum = Final momentum

(3500 kg) × (20.0 m/s) + (2000 kg) × (0 m/s) = (3500 kg) × (final velocity of truck) + (2000 kg) × (14.0 m/s)

Now, we can solve the equation to find the final velocity of the truck:

(3500 kg) × (20.0 m/s) = (3500 kg) × (final velocity of truck) + (2000 kg) × (14.0 m/s)

70000 kg·m/s = (3500 kg) × (final velocity of truck) + 28000 kg·m/s

42000 kg·m/s = (3500 kg) × (final velocity of truck)

final velocity of truck = 42000 kg·m/s / 3500 kg

final velocity of truck = 12 m/s

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Total voltage= 2.4 V.

Total current= 0.05 A.

Total resistance= 64 Ω.

Given circuit diagram:

We can find the current and voltage across various resistors by using Ohm's law, Kirchhoff's voltage law, and Kirchhoff's current law which states:

At any node (junction) in an electrical circuit, the sum of currents flowing into that node is equal to the sum of currents flowing out of that node.In a closed circuit, the sum of the voltage sources is equal to the sum of voltage drops across various resistors.

Let's fill the table provided in the question:

Circuit Position 12

Total Voltage (V) 3.00

Current (A) 0.0750.100

Resistance (Ω) 4024.00

On analyzing the circuit, we can see that:

Resistance R2 and R3 are in parallel combination; their effective resistance will be:

1/R2,3 = 1/R2 + 1/R3= 1/40 + 1/60= 1/24 Ω Req = 24 Ω

Resistance R1 and the effective resistance of R2,3 (Req) are in series combination; their effective resistance will be:

Req,1 = R1 + Req= 40 + 24= 64 Ω

We can calculate the total current by using Ohm's law:

I = V/R= 3/64= 0.046875 A≈ 0.05 A

We can calculate the current through resistor R1 and the effective resistance of R2,3 by using Kirchhoff's current law:

Current through R1 + Current through Req = Total current

0.075 + 0.100 = 0.05 (This equation satisfies the Kirchhoff's current law)

Now, we can calculate the voltage across R1 by using Ohm's law:

V1 = IR1= 0.075 × 40= 3 V

We can calculate the voltage across Req by using Ohm's law: V2,3 = I

Req= 0.1 × 24= 2.4 V

Thus, the table is filled up with all the relevant values.

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The frequency of oscillation is multiplied by the square root of the product of the factors of inductance and capacitance. In this case, the frequency is multiplied by the square root of 9.72 multiplied by 6.12, which is equal to 11.3.

Suppose that the current in an LC circuit oscillates with a certain frequency. If the inductance is increased by a factor of 9.72 and the capacitance is increased by a factor of 6.12, the factor by which the frequency of oscillation is multiplied is calculated as follows:

Let L be the initial inductance and C be the initial capacitance of the LC circuit. The angular frequency of oscillation of the LC circuit is given by the expression \(\omega= 1/\sqrt{LC}\) where ω is the angular frequency, L is the inductance, and C is the capacitance.

The new angular frequency of the LC circuit is ω′ = 1/√(L′C′)where L′ and C′ are the new inductance and capacitance, respectively. Let L′ = 9.72L and C′ = 6.12C. Substituting these values into the equation above gives ω′ = 1/√(9.72LC × 6.12C)ω′ = 1/√(59.4384LC)ω′ = (1/√59.4384) × (1/√(LC))ω′ = (0.161)ω.

Therefore, the factor by which the frequency of oscillation is multiplied is 0.161. Therefore, the frequency of oscillation is decreased by a factor of 6.192.

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The broken pieces of the plates overlie a ductile layer known as asthenosphere.

Plate tectonics is a scientific hypothesis that explains the movement of Earth's lithosphere. Plate tectonics also explains the formation of mountains, volcanoes, and the occurrence of earthquakes. The Earth's lithosphere is composed of the Earth's crust, both continental and oceanic, and the uppermost part of the mantle. The lithosphere is divided into several plates that fit together like a puzzle. These plates are in constant motion, driven by the motion of molten rock in the Earth's mantle.

The plate boundaries can interact with one another in various ways. Divergent plate boundaries are where new lithosphere is created as the plates move apart. At convergent plate boundaries, one plate is forced beneath another. Transform plate boundaries are where plates slide past each other in a sideways movement.

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Answer:

The answer is below

Explanation:

Jenny and anne wanted to see who could throw the ball the hardest. they decided to each throw a ball against the wall as hard as they could and measured how far the ball rolled away from the wall. what might be the variables in this experiment;

Solution:

There are different type of collisions. In an inelastic collision, momentum is conserved and there is loss in kinetic energy while in an elastic collision, momentum is not conserved and there is no loss in kinetic energy.

During inelastic collision, the objects stick together while during an elastic collision, the objects separate.

When the ball is thrown against the stationary wall, there is momentum due to the force of impact. The distance at which the ball is rolled away from the wall depends on:

a) mass of the ball, b) velocity of the ball, c) mass of the wall d) type of collision (elastic or inelastic)

Assuming that  average speed are in kilo-metres per hour, the typical trip takes 2 hours and 20 minutes to complete.

Apply the following formula to this issue:

Total distance travelled minus total time taken equals average speed.

You must first determine the length of the trip travelled.

Total distance travelled minus total time taken equals average speed.

Therefore : d = average speed x time spent overall - rearranging

In other words, d = vt = 105 km/hr x 2.3333... hrs = 245 km

Find out how long the typical journey takes on Friday afternoon.

t = d/v - equation rearranged equals 245 km/67 km/h = 3.6567164.

18 hours equals 3 hours, 39 minutes (rounded to nearest whole minute)

You must now determine how much longer the Friday trip takes.

Duration: (3 hours and 39 minutes) - (2 hours and 20 minutes)

= 1 hour and 19 minutes

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Answer:

ideas can change as new discoveries are made.

though "we have yet to discover how to make a perfect organism" is also a valid choice? maybe refer to a textbook or something

Answer:

starve.io

Explanation:

it's better and the pvp is good or moonoo.io

Radial component of the linear acceleration = 99.47 m/s^2

The diameter of the wheel, d = 51 cm

The radius, r = d/2 = 51/2 = 25.5 cm

r = 25.5/100 = 0.255 m

r = 0.255 m

At t = 1.1, first calculate the new angular velocity

The radial component of the linear acceleration is given as:

The integral of 1/(1 + x²) is (1/2)ln|1 + x²| + C where C is the constant of integration.

Integration is a mathematical process of finding the antiderivative of a function. To integrate the given expression 1/(1 + x²), we will use the substitution method.

Let u = 1 + x², du/dx = 2x dx, then dx = du/2x and the integral becomes:

∫1/(1 + x²) dx = ∫1/u * (1/2x) du= (1/2)∫1/u du

The antiderivative of 1/u is ln|u| + C, where C is the constant of integration.

Therefore, the final solution of the integral is (1/2)ln|1 + x²| + C.

Let us work through the steps:

Step 1:Let u = 1 + x² and then differentiate both sides with respect to x to obtain du/dx. du/dx = 2x

Substitute 2x dx = du into the integral ∫1/(1 + x²) dx to get the integral in terms of u:∫1/u * (1/2x) du = (1/2) ∫1/u du

Step 2:Calculate the antiderivative of 1/u, which is ln|u|. Thus, the final solution is (1/2)ln|1 + x²| + C, where C is the constant of integration. The constant C will vary depending on the initial conditions of the problem.

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The given statement, approximately 4.5 billion years ago, a mars-sized object impacted the semi-molten earth. some of the debris from this impact coalesced to form the moon, is true because the early Earth and the debris from this impact eventually formed the Moon.

The theory that the moon was formed from debris left over after a Mars-sized object collided with the Earth, called the "giant impact theory," is widely accepted in the scientific community. This theory suggests that about 4.5 billion years ago, a massive object, sometimes called Theia, collided with the early Earth. The impact was so violent that it caused the molten material from both bodies to be ejected into space, where it eventually coalesced into the Moon.

The prevailing scientific theory about the formation of the Moon is the giant-impact hypothesis, which states that a Mars-sized object collided with the early Earth and the debris from this impact eventually formed the Moon. This event is estimated to have occurred approximately 4.5 billion years ago.

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I believe you got it correct already

Answer:

4,312 J

Explanation:

PE = mgh

= 44(9.8)(10)

= 4,312

Answer:

Explanation:

The gravitational potential energy of a body can be found by using the formula

GPE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

GPE = 200 × 9.8 × 30 = 58,800

We have the final answer as

Hope this helps you

The following statements is true about roasting in convection ovens is a. Convection ovens are very effective for browning roasts.

The convection oven's fan and exhaust system circulate hot air around the food, creating a consistent and even heat distribution. This allows for a quicker and more even cooking process, resulting in a beautiful browned crust on the outside of the roast. However, it is important to note that a convection oven should be set about 50°F (25°C) lower than a conventional oven, this is because the circulating hot air in the convection oven cooks the food faster than in a conventional oven.

Additionally, most chefs believe that roasts cooked in convection ovens shrink less than those cooked in conventional ovens because the even heat distribution allows for more moisture retention in the meat. Overall, roasting in a convection oven can be a great option for achieving a beautifully browned and evenly cooked roast. So therefore the correct answer is a. Convection ovens are very effective for browning roasts.

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Even if the submarine's mass rises while its volume stays constant, the buoyant force on it doesn't change. As a result, the buoyant force on the submarine has changed by around 9,434.53 N.

The air in the ballast tanks is evacuated out of the submarine as it dives, and the ballast tanks are flooded with water until the submarine's overall density is greater than the surrounding water, at which point the submarine starts to sink. (negative buoyancy).

Identify the buoyant force change:

The weight of the displaced water changes in proportion to the change in buoyant force. As a result, the buoyant force has changed as follows:

change in buoyant force = change in weight of displaced water

change in buoyant force = 9,434.53 N

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Answer:

4th one

Explanation:

(a) The acceleration of the salt shaker is 1.18 m/s².

(b) The distance traveled by the baseball player before coming to rest is 204.1 m.

The acceleration of the salt shaker at the given coefficient of kinetic friction is determined as follows;

a = μg

a = 0.12 x 9.8

a = 1.18 m/s²

Acceleration of the baseball player is calculated as follows;

a = μg

a = 0.4 x 9.8

a = 3.92 m/s²

The distance traveled by the baseball player before coming to rest is calculated as follows;

v² = u² - 2as

0 = 40² - 2(3.92)s

0 = 1600 - 7.84s

7.84s = 1600

s = 204.1 m

The complete question is below:

A baseball player slides into third base with an initial speed of 40 m/s. If the coefficient of kinetic friction between the player and the ground is 0.40, how far does the player slide before coming to rest?

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Answer:

3.03

Explanation:

time=distance/speed

1km=1000m

1000÷330

=3.030