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Physics

Valeria Herman

What is the weight of a 250 g bag of sweets?

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Physics

Demetrius

Two long, straight parallel wires 8.2 cm apart carry currents of equal magnitude I. The parallel wires repel each other with a force per unit length of 3.2 nN/m. The permeability of free space is 4 π * 10-7 T · m/A. Find I. Answer in units of mA.

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Physics

Rebecca Graham

Two Charged spheres of 6.4 nC charge are 16 cm apart. What is the magnitude of the field in middle? (n = 10^-9, 100 cm = 1 m)

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Physics

Bailey Gentry

Sound emitted by an open organ pipe is more musical than emitted by a close one why?

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Physics

Guest

A boy releases a small 1 kg toy truck from rest down a 5 meter high hill. assuming there is no friction, what is the maximum kinetic energy the truck could have at the bottom?

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Physics

Mohammad Fleming

In a process called pair production, an energetic

gamma ray is converted into an electron and

a positron. It is not possible for a gamma ray to be

converted into two electrons because

(1) charge must be conserved

(2) momentum must be conserved

(3) mass-energy must be conserved

(4) baryon number must be conserved

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Physics

Henry

Which medium can p waves travel through? solids liquid gas all of the above

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Physics

Rhys Ramos

A 2000kg car travelling east at 24/ms enters an icy intersection and collides with a 3600kg truck travelling south at 10 m/s. If they become coupled together in the collision, what is their velocity immediately after impact?

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Physics

Myles Leonard

What is the connection between the transformations of gregor and grete?

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Physics

Camryn Sawyer

3. The half-life of a certain radioactive material is 42 days. An initial amount of the material has a mass of 49

kg. Write an exponential function that models the decay of this material. Find how much radioactive material

remains after 8 days. Round your answer to the nearest thousandth

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Physics

Keyon Garcia

What period of time did mammoths and saber tooth's die out

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Physics

Jazlyn Velasquez

Protons have electrical charge; electrons have. electrical charge

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Physics

Lydia Dorsey

The mass of a newborn baby is 4.2 kilograms what is the baby's weight? (The acceleration due to gravity is 9.8 m/s2)

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Physics

Selina Summers

What holds the atoms together in a covalent bond

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Physics

Halle Duffy

The sun is the centermost star of our solar system.

a. True

b. False

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