367 Answered Questions for the topic physics B

#### A hypothetical material has a relative permeability and relative permittivity of 3.0 and 4.0, respectively.

A hypothetical material has a relative permeability and relative permittivity of 3.0 and 4.0, respectively. a. What is the speed of light in this material? b. What is the value of the magnetic...
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#### Please help me understand

Can you explain or give an example of why the frequency of light does not change upon reflection

#### Asteroid split lab

Background: The two tables below contain both the assumptions and parameters needed to evaluate if the plucky heroes in Armageddon could save Earth. In order to miss, Earth two conditions must...
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#### In a roundabout (or traffic circle), cars go around a 24- m -diameter circle.

In a roundabout (or traffic circle), cars go around a 24- m -diameter circle.If a car's tires will skid when the car experiences a centripetal acceleration greater than 0.60g , what is the maximum...
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#### A wildlife researcher is tracking a flock of geese. The geese fly 5.0 km due west, then turn toward the north by 45 ∘ and fly another 3.5 km .

A wildlife researcher is tracking a flock of geese. The geese fly 5.0 km due west, then turn toward the north by 45 ∘ and fly another 3.5 km .How far west are they of their initial position?What is...
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#### A skier is gliding along at 3.0 m/s on horizontal, frictionless snow. He suddenly starts down a 11 ∘ incline. His speed at the bottom is 15 m/s .

A skier is gliding along at 3.0 m/s on horizontal, frictionless snow. He suddenly starts down a 11 ∘ incline. His speed at the bottom is 15 m/s .What is the length of the incline?How long does it...
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Physics B

04/25/22

#### The mass of an object is The object requires to raise its temperature by What is the specific heat of the object?

#### Calculate the magnitude and direction of the resultant electric field at the origin due to these charges

A point charge 𝑞1 = +6.00 𝑥 10−9𝐶 is at the point 𝑥 = 0.800 𝑚, 𝑦 = 0.600 𝑚 and a second point charge 𝑞2 = −2.00 𝑥 10−9𝐶 is at the point 𝑥 = 0.800 𝑚, 𝑦 = 0 𝑚. Calculate the magnitude and direction...
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#### Physics 2: Interference Problem Please Help

An oil film ( n= 1.46) floats on a water puddle. You notice that green light (520 nm ) is absent in the reflection. What is the minimum thickness of the oil film?I used the destructive...
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#### Physics Constructive Interference- Please Help

A soap film (n=1.33) is 765 nm thick. White light strikes the film at normal incidence.What visible wavelengths will be constructively reflected if the film is surrounded by air on both sides?

#### capacitor question

The charge stored on each plate of a capacitor is 120 μC when it is connected to a source with a potential difference of 6.0 V. (a) What is the capacitance of the capacitor?(b) What is the...
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#### gauss law physics 2

a uniform electric field e=15000 n/c passing through a flat square A = 2 m2. determine the electric flux

#### Physics Help Please- Lens

The actual light sensor size of a digital camera is 14.9 mm X 22.3 mm. You want to take a photograph of your friend, who is 2.0m tall. Your camera has a 50mm-focal-length lens. How far from the...
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#### Physics Thin Lens Equation Help Please

The actual light sensor size of a digital camera is 14.9 mm X 22.3 mm. You want to take a photograph of your friend, who is 2.0m tall. Your camera has a 50mm-focal-length lens. How far from the...
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#### Help needed with physics

A 1200 kg safe is 2.4 m above a spring when the rope holding the safe breaks. The safe hits the spring and compresses it 42 cm. What is the spring constant of the spring?

#### Help with physics question

A system in which only one particle can move has the potential energy shown in the figure. Suppose U1 = 92 J. What is the y -component of the force on the particle at y = 0.5 m ? What is the ...
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#### Help needed with physics question

A 58.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe," a track that is one-quarter of a circle with a radius of 2.70 m. What speed does he need at the bottom?Any help...
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#### Physics Concave lens Question Help please

An object is located to the left of a concave lens whose focal length is -35 cm. The magnification produced by the lens is m1 = 0.36.A. To decrease the magnification to m2= 0.23, should the object...
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03/14/22

#### Ideal Gas Equation Help!

A house has a volume of 1.45 x 10^4 cubic meters. At 20.0°C and 740 mm Hg, the air fills the house. If the temperature and pressure increases to 35.0°C and 780 mm Hg, how much air must be drawn...
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03/13/22

#### Ideal Gas Equation Help

A house has a volume of 1.45 x 10^4 cubic meters. At 20.0°C and 740 mm Hg, the air fills the house. If the temperature and pressure increases to 35.0°C and 780 mm Hg, how much air must be drawn...
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#### What are the components of a pendulum's acceleration vector?

What are the components of the acceleration vector of a pendulum?a) ax = 0, ay > 0b) ax > 0, ay > 0c) ax < 0, aY > 0

02/18/22

#### Does these violate Newton's third law?

A 50 KG brick is put on a glass table glass. Action force and reaction force are not the same and the glass breaks because a glass's opposing force will never equal the heavier brick. So in...
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#### Current Question (Physics Help Please)

A television set connected to a 120 V outlet consumes 21W of power. A. How much current flows through the television? B. How long does it take for 10 million electrons to pass through the TV?For...
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#### Magnetic field PHYSICS HELP PLEASE!

A 0.40 uC particle moves with a speed of 16 m/s through a region where the magnetic field has a strength of 0.99 T. a. At what angle to the field is the particle moving if the force exerted on...
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#### Physics Electric Potential Energy Please Help

A uniform electric field of magnitude 7.8×105 N/C points in the positive x direction. Find the change in electric potential energy of a 4.5 uC charge as it moves from the origin to the point...
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