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- Who's got A in physics in her/his AS levels?
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I got an "A' in every physics class I ever took until I got to graduate school. Finally got a few B's there.

I would be bragging if I claimed the trut - two forces act at right angles one is 24 n and the other is 18 n he net force is?
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a. 30N C. 18N

b. 27N D. 24N - If all oxygen in atmosphere is converted to CO2, would the atmosphere be at higher pressure? What pr
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Yes. Why? You would basically be adding carbon from the ground to the air if this were to happen. C+O2=CO2.

The amount of O2 in the air is about 20% - can the equation E=hf be expressed in terms of temperature?
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Energy is an atom is used to maintain its volume in space which is internal to the atom.

Temperature is an increase in volume, oscillations and kinetic energy - How do I calculate the power dissipated in a resistor of a double circuit?
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The Emf (x) = 7.00 V and the Emf (w) = 19.00 V. Both are shown on the diagram. Calculate the power dissipated in the 6 Ω resistor located on the extreme right in the circuit.

Update:

Please show me the steps if you have time

- warm water which is left in a clay pot gradually cools. This is because?
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Heat dissipates until it is evenly distributed.

If the water in the pot was cool, heat would dissipate from the pot and the air into the water.

No - how the light rays from the bulb spread???
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For light rays lenses

Light emission from a tungsten filament starts at the middle of its length after being energized. A ray of light can only trave - How do I calculate the velocity of water in a piper?
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"A boiler is supplied with water at a rate of 0.5kg/s initially through a pipe of internal diameter of 80mm."

Calculate the velocity of water in a pipe.

If anyone can help me solve this I will be very grateful

Th - How much weight can an average airline seat hold?
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There is not ONE 'average; seat actually installed in ANY aircraft.

They can handle a small hippo in a pinch.

Lots. Lime 400+ pounds

- Is plutonium more radioactive then any other radioctive substance?
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Half life of plutonium (grade for nuclear weapons) is 24,000 years

https://www.youtube.com/watch?v=-tkRFP7c...

that depends on which isotopes we're t - Physics help????????
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An object of mass 10 kg starts from rest at time t=0 and moves in a straight line. For time t > 0, the object's velocity v as a function of time t is given by v=2t + 3t^2 where v is in m/s and t is in seconds. How much work is done by the net force - A 20,000 N truck collides with a 1500 N car and causes a lat of damage to the car. Since a lot of da
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These are the answer options:

A: the force on the truck is greater than the force on the car

B; the force on the truck is equal to the force on the car

C; The truck did not slow down during the collision

D: the force on the truck is s - Can information travel faster or slower than the normal speed of light?
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Yes, It can travel faster or slower than the normal speed of light.

."Quantum Entangled" particles can react instantly to changes in each other even if - should I become an alcoholic so I could be as smart as Rick from Rick and Morty?
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You cannot just "become" an alcoholic any more than you can become a world famous tennis player or a top actor.

It is something that has to be worked at. Pra - A 150W is connected is series with a room heater of 2000W. What will happen if the bulb is replaced
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a. glow brighter

b. become darker

c. nothing will change

d. none of these - Why does it cause a double reflection?
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- If we could dig deep enough could we place some sort of man made rods inbetween the plates so they r
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Stopping earthquakes - Could dark matter what makes electrons go around?
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MOTION is always INHERENT in an electron. It leaves a WAKE in Spacetime we call Magnetism. As a Particle it actually moves As a WAVE (around an atom) it has m - Physics hw help?
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A merry-go-round has a radius of 1.8 m and a moment of inertia 197 kg * m^2. A boy of mass 60 kg runs tangent to the rim at a speed of 3.6 m/s and jumps on. If the merry-go-round is initially at rest, what is the angular velocity (in rad/s) after the boy - Pls help me with this physics question?
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The sun has a mass of 1.99×10^30 kg and a radius of 6.955×10^8 m. What would be the weight of a 63.1 kg astronaut if he could stand on the surface of the sun? - How doesr recoil work in firearms?
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According to the third law of motion, the action and counter-action of bodies are the same.

But in this case why isn't a shooter wounded when he shoots a pistol? Bullet carries action which harms the target, so why doesn't counter-action harm the - Do you agree with Bohr and believe electrons actually orbit their nuclei?
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The properties of the electron orbitals in hydrogen can be predicted by solving an equation which treats each orbital as a resonant 3D standing wave. Most of th - What is the highest heat conduction metal besides copper?
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On a per kilogram basis, aluminum has the highest conductivity both of heat and electricity

Gold (24 k), but it is too expensive to be practical.

- Derive the formula for the escape veolocity of a projectile from a plant of mass M?
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Derive the formula for the escape veolocity of a projectile from a plant of mass M, and radius R. Use convervation of energy and remember that at infinity both the kinetic and the potential energy of the projecticle can be considered null. (Physics) - How long do fridge magnets last for ?How long do they keep magnetized?
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My granny says she s had one of her fridge magnets since she was very young that got me thinking how long will a fridge magnet stay stuck ? Or keep it s magnetism?

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