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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10/15/19

Precalculus Question

You invest $900 at 6% interest compounded annually. How much is in the account after 8 years, assuming that you make no subsequent withdrawal or deposit?
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11/02/18

AP Physics PLEASE HELP ASAP
A boy drags a wooden crate with a mass of 20.0 kg, a distance of 12.0 m, across a rough level floor at a constant speed of 1.50 m/s by pulling on the rope tied to the crate with a force of... more
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03/28/18

PreCalculus Questions
An airplane has an airspeed of 530 kilometers per hour bearing N30°E. The wind velocity is 20 kilometers per hour in the direction N40°W. By finding the resultant vector representing the path of... more
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03/28/18

PreCalculus Questions
You set aside $100 a month into an account that earns 3% interest (compounded monthly) for eighteen years. At the end of those eighteen years, how much money will be in the account? $28,594.03... more
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