252 Answered Questions for the topic physics C

#### Electricity, resistance, current, voltage, physics

a circuit operates at 1000 watts, within the circuit we have a 10 ohm, 20 ohm, and 40 ohm resistors.a) if the resistors are connected in parallel, what would their equivalent resistance be? b)...
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#### Physics Question: Suppose we watch the bee during the time interval from 10 s to 100 s and determine that x(t) = 10.0 m + (1.0 m/s)t, y(t) = 16 m + (4.0 m*s)t^(-1), and z(t) = 6.0 m.

Suppose we watch the bee during the time interval from 10 s to 100 s and determine that x(t) = 10.0 m + (1.0 m/s)t, y(t) = 16 m + (4.0 m*s)t^(-1), and z(t) = 6.0 m.y(t) = 16 m + (4.0 m*s)t^(-1)It...
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#### please answer ASAP ... magnetism college-level physics

A negatively-charged particle travels parallel to magnetic field lines within a region of space. Which one of the following statements concerning the force exerted on the particle is true?
The...
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14d

#### please help ASAP magnetism physics

A charged particle is moving through a constant magnetic field. Does the magnetic field do work on the charged particle?
no, because the magnetic force is always perpendicular to the velocity of...
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15d

#### magnetism/ college-level physics HELP ASAP

positively charged particle is stationary in a constant magnetic field within a region of space. Which one of the following statements concerning the particle is true?
The particle will not move....
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24d

#### When the terminals of a 100-volt battery are connected to 2 large parallel horizontal plates 2cm apart, the electric field in the region...

When the terminals of a 100-volt battery are connected to 2 large parallel horizontal plates 2cm apart, the electric field in the region between the plates is very nearly uniform with magnitude E=...
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#### Potential energy/velocity

roller coaster 1: Potential energy: 1,617,000J, mass 5,500kgRollercoaster 2: potential energy: 2,205,000J, mass: 5,000kggravitational constant: 9.8
roller coaster 1 has no kinetic energy, and at...
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#### Electric Potential

Electric Potential Formula: V= K*q/rElectric potential energy Formula: UE= Kq1q2/rWhat is the electric potential energy between a particle with 1*10^-9 C of charge and a particle with -1*10^-9 C of...
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#### My question is about the rotatioanal motion

A some is attached to the string.The stone is rotating in a circle, the center is C and the radius is 85cm, at constant speed in a verticle plane, the stone has mass of 50g and it takes 0.12s to...
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05/11/21

#### Coulombs law Physics

FORMULA: K*Q1*Q2/R^2keep in mind: the charge of a proton (and the negative charge of an electron) is equal to 1.60218 * 10^-19 C1. What is the force between a proton and an electron which are 1...
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Physics C

05/09/21

#### I need help for the below question

|||A proton is fired from far away toward the nucleus of a mercury atom. Mercury is element number 80, and the diameter of the nucleus is 14.0 fm. If the proton is fired at a speed of 4.0 107 m/s,...
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#### Entropy Questions Physics

Give an example of a device that decreases entropy in a specific area (but still increases total entropy in the universe).

04/27/21

#### First law of thermodynamics physics basic

Can someone help me with any of these?U=Q-WNote: if thermal energy is lost by the system or if work is done to the system, Q or W is negative.
50J of thermal energy is added to a system, 100J of...
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#### help please.. In the figure shown, the volume at point C is 800 L and the pressure is 2 atm. The volume at a is 400 L and the pressure is 5 atm. (a) What is the wor

In the figure shown, the volume at point C is 800 L and the pressure is 2 atm. The volume at a is 400 L and the pressure is 5 atm. (a) What is the work done as the system goes through one complete...
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04/11/21

#### If you measure the size of each plate to be 12 cm2, how far apart are the plates, in micrometers?

A 0.054 μF capacitor is being held at a potential difference of 431 μV. I keep getting an answer 1.967 * 1o^-7 which is wrong. Please explain and show your work. Thanks!

#### Specific Heat/Heat Transfer

Glass
Liquid Water
Oxygen Gas
Wood
Concrete
Gold
Carbon Dioxide Gas
rank the following substances in the order of their specific heats from lowest to highest.

04/07/21

#### Change in Droplet Temperature

A drop of rain falls from a height of 300 m in relation to the ground. The drop first falls uniformly accelerated with an acceleration of 6 m/s^2. At a height of 50 m from the ground the drop is...
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04/05/21

#### What is the magnification of the image?

Suppose that you have a converging lens that produces a real image of a small object. The image is at a distance of 150 cm to the left of the lens and the object is at a distance of 75 cm to the...
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04/05/21

#### Will the image of the object be on the right side or left side of the lens?

Suppose that you have a converging lens with a focal length of 20 cm and you place a small object at a distance of 25 cm to the right of the lens. I understand the image will be real so just not...
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04/01/21

#### Urgent physics help

An electron has mass m=9.1x10-31 kg and charge q = 1.6x10-19 C. In an experiment at Oak Ridge National Laboratory, an electron is accelerated from rest by moving through the electric field between...
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04/01/21

#### Urgent help physics

-What is the direction of the surrounding magnetic field if an electron moving to the right experiences a force into the page?a) up b) down c) left d) right e) into the page f) out of the page—What...
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04/01/21

#### Urgent physics help

The next three questions relate to this scenario.An electron has mass m=9.1x10-31 kg and charge q = 1.6x10-19 C. In an experiment at Oak Ridge National Laboratory, an electron is accelerated from...
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03/28/21

#### What is the distance, in kilometers, of a point outside the sphere from the sphere’s center, if the potential at the point is 5.2 MV?

The surface of a sphere carries a uniform charge 1.45 C. I keep getting 2.509 * 10^3 for r which is wrong. Please show your work and thanks in advance!

#### Physics! I can calculate the electric current flowing through a complex circuit based on resistance and voltage.

solve this and fill in the table below please provide all the steps.Especially on how you found voltage, Current . Thank you
(Total: 12V, 3A,...
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03/25/21

#### How can I solve this physics question? Someone help please?!

An aluminum wire having a cross-sectional area equal to 6.00 10-6 m2 carries a current of 4.50 A. The density of aluminum is 2.70 g/cm3. Assume each aluminum atom supplies one conduction electron...
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