06/20/22

Explain why the emission spectra of elements show lines of different colors but inly in narrow bands

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05/17/22

Torque /physics based problem
A girl pushes a door with a 10.4 Nforce, perpendicular to the door,1.25 m from the hinges. Howmuch torque is produced?(Unit = N*m)can someone please throughly answer this ?
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04/27/22

You are given a number of 22 Ω resistors, each capable of dissipating only 2.1 W without being destroyed.

You are given a number of 22 Ω resistors, each capable of dissipating only 2.1 W without being destroyed. What is the minimum number of such resistors that you need to combine in series or in... more
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04/22/22

i really cant figure this out
A space probe is being prepared for a deep-space mission. The engineers have divided the trip into five segments based on the required changes in motion, as noted in the table. During which parts... more
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04/20/22

a car travels 100 km in 4 hours. what is the speed in km/hr?
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04/20/22

Rotational motion problems

A wheel turning 1.50 rad/sexperiences an angularacceleration of 0.322 rad/s^2.How many radians has it rotatedafter 4 80 s?Could someone please answer this throughly,it would be greatly appreciated!:)
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04/18/22

Faraday's Law Question
John is pedaling his bike down the street perpendicular to the earth’s magnetic field of 5.5 x 10-5 T. Whatis the induced voltage in one metal rim of the bicycle if the wheel has an area of 1.13 m2... more
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04/18/22

Calculate the gravitational potential energy of a particle of mass m located at distance d from the center of mass of a rod of mass M and length L. Assume that x>L/2.
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04/18/22

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... more
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04/18/22

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?
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04/17/22

Physics problem: find the depth of the pool
A person looks at the surface of water with an angle of 30 degrees and sees a coin 0.5 m further than it really is. What is the depth of the pool.The answer I should get is around 16 cm.
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04/13/22

2d momentum /physics

A 3520 kg truck moving north at26.0 m/s makes an INELASTICcollision with a 1480 kg carmoving 13.0 m/s east. What is themagnitude of their (joint) velocity?could some directly answer this it would... more
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04/11/22

The data represent the number of driving fatalities for a certain area by age for male and female drivers.
The data represent the number of driving fatalities for a certain area by age for male and female drivers.​(b) What is the probability that a randomly selected driver fatality who was 16 to 20 was... more
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04/09/22

A large balloon used to sample the upper atmosphere is filled with 760 m3 of helium. What is the mass of the helium (in kg)?
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04/08/22

A particle with the same charge as an electron experiences a force of 5.2 × 10−12𝑁 and traveling at a speed of 4.21 × 107𝑚/𝑠 at right angles to a magnetic field.

A particle with the same charge as an electron experiences a force of 5.2 × 10−12𝑁 and traveling at a speed of 4.21 × 107𝑚/𝑠 at right angles to a magnetic field. a. How strong is the magnetic... more
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04/08/22

A 15 A current-carrying wire has a length of 27 cm in a magnetic field of 0.79 T.
A 15 A current-carrying wire has a length of 27 cm in a magnetic field of 0.79 T.Find the force on the wire when it makes the following angles with the magnetic field lines of a. 90° b. 45° c. 180°... more
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04/06/22

work and energy
 A child of mass m = 27 kg slides down a slide of height h = 2.6 m without friction. Let gravitational potential energy be zero at ground level.a) write an expression for the childs total... more
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04/02/22

gauss law physics 2
a uniform electric field e=15000 n/c passing through a flat square A = 2 m2. determine the electric flux
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04/02/22

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... more
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04/02/22

Comet Neowise is a long period comet that was visible last July 2020. It has an orbital period of 4400 years. What is its mean distance from the Sun?
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04/01/22

Compute the POSITION and DIAMETER of the image of the Moon in a polished sphere of diameter 20 cm. The diameter of the Moon is 3500 km, and its distance from Earth is 384 000 km, approximately.
Can I have complete solution please. Thank you so much in advance! :)
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03/08/15

explain what happens when light travels from water into air and the angle of incidence is greater than the critical angle?
explain what happens when light travels from water into air and the angle of incidence is greater than the critical angle?
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