Miss Brooke Palu
What is the invert of a NAND gate?

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Miss Brooke Palu
Don't understand how a JK flip flop functions. How do you use the information you have of a JK flip flop let's say J and K are both 1 and there are four positive-edge triggered JK flip flops in the circuit whereby the initial state of the circuit is given by Q1=0 Q2=0 Q3=0 and Q4=0? I'm completely lost with what the current state and next state is .

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Miss Brooke Palu
How do I use a voltage gain in dB to find out the signal-to-noise ratio in dB at the output for an input of 5mVpp?

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Mr sahil khan
How to improve positive thinking?

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Miss Brooke Palu
Why can we distinguish between musical instruments playing the same note?

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Miss Brooke Palu
As identical two tuning forks are struck, one remains stationary, and one is moved away from the listener. What would the listener hear?

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Miss Brooke Palu
What are the physic aspects of medical isotopes?

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jc
What is absolute zero?

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 Fahad Alfadhl
Can fallen bullets from firing guns into the air in celebrations kill a man?

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 Fahad Alfadhl
Is it possible to walk through a rainbow?

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joey
In simple terms can you explain why the infamous double slit experiment is so interesting?

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Can electricity be generated from cold fusion?

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Mr Aaron Alphnso
How do I give someone a shock using static electricity?

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maybesoon
A spring of spring (or force) constant 800N/m is hung from a beam support. A block of mass 4.0kg is hung from the lower end of the spring. The block oscillates until it comes to rest at the system's equilibrium position. How for will the block stretch the spring?

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Mr Ephesians  Adams
The octet rule is applied when two atoms share how many electrons?

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poigne
What is the distance to the atom?

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joey
Is there a law of attraction in physics, if so in basic terms what is it?

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DNP
You are in a boat in a lake. There is an untethered anchor in the boat. You drop the anchor into the lake. Does the water level of the lake go up, down, or remain unchanged?

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Mr chris hoffman
What is the terminal velocity of a chicken egg?

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Mr Mark Coleman
If some kind of vehicle could reach the center of the earth which protected against heat and pressure, what would gravity feel like?

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Show from its defining formula that the unit of centripetal force is the newton.

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Miss Melissa Dowd
Define mass, momentum and kinetic energy and the relationship between them when shooting a firearm?

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trewdy57
If I know the vapour permeability of a material (Sd value), is it possible to calculate the vapour resistance of that material (GNs/kg m)? If this is possible, what is the calculation?

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Mr Derek Pruitt Pruitt
How does the clarity of the urine sample relate to its specific gravity?

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LiSaR.x
Why cant a substance be an atom and a compound at the same time?

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BARFIYAW
1. A body is thrown vertically upward from the distance H = 1.5m above the ground at the edge of a pit having a depth of S = 3.5m. The initial velocity of the body is 2.3m/s. Determine the velocity at which the body will reach the bottom of the pit.

2. A pith ball whose mass is 0.50g and whose charge is -9.8nC is hanging on a silk thread. Through what angle will the thread divert if the ball is introduced into a homogeneous electric field of intensity 50.0kN/C directed horizontally.

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Ms A Ghaly
Why don't things get thrown off by the spinning earth in the way we see other things thrown from spinning objects, such as water flying from a car tire after it rolls through a puddle?

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Ms A Ghaly
Why does a ball dropped from the top of a high tower fall to the base of the tower instead of being left behind by the spinning earth to finally hit the ground some place far away?

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NightCleaner
What happens if you magnetize a steel pyramid and what forces would be created by the poles, and where would north and south be?

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Mr J J
A person can be electrocuted while taking a bath if he or she touches a poorly insulated light switch. Why is the electric shock received dangerous than usual?

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school
Where is the noon sun at an equinox?

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Ms Sharan kaur
Why is it that so many values in physics are approx?

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Judi
What is the difference between the Ptolemaic and Copernican System?

Why was Copernicus right?

How does a moving earth affect the objects on its surface?

How can experiment play a role in deciding whether the Copernican or Ptolemaic system is right?

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Miss Sarelle Kiel
How many helium balloons would it take to carry a 13 stone man?

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Miss KHUSHBOO AGARWAL
What is the power of a reflecting surface?

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Mrs Sof rob
Statement of Rayleigh-Jeans Law??

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squeaks
How does diathermy work?

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Anden15
I know it is not possible to travel faster than light. But is it possible for something (other than light) to travel the exact same speed as light?

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Russel
Is there any credibility to Pulsoid Theory? Does it address any flaws of Standard Model Physics?

(See http://www.cqthus.com/PT/PT)

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Mr sanjay sehgal
What is light?

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Mr CHANDRA INTURI
An object is projected upward from the top of a tower. Its distance in feet above the ground after t seconds is given by s(t)=-16t^2+64t+80. How many ...?

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Miss Gina Mock
A rifle is aimed directly at a squirrel in a tree. Should the squirrel drop from the tree at the instant the rifle is fired or should it remain where it is? Why?

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BARFIYAW
a) How much energy is required to heat 1.5 L of water at a temperature of 20 °C to the boiling point 100 ºC?

c) There is 1.5 L of water in a kettle on a cooking plate of 2.0 kW. It takes 7.0 minutes to heat the water from a temperature of 20 ºC to the boiling point. How much electrical energy is required? What is the efficiency of the heating process?

The density of water is 1000 kg/m 3 and the specific heat capacity of water is 4.2 C kg

kJ

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BARFIYAW
A total charge of 50 Ah is stored in a 12 V battery of a car. Each

of the bulbs of the four parking lights is labelled 3,6 W / 12 V.

a) Find the current from the battery when only the parking lights are switched on.

b) What is the resistance of one bulb?

c) How long does it take before the battery becomes dead if the parking lights are on?

Assume that the internal resistance of the battery and the resistances of the connecting wires are negligible.

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BARFIYAW
THE MASS OF VAN WITH A DRIVER IS 2000kg. When the van accelerates, the velocity increases with a uniform acceleration of 3.0 m/s2.

a. the van starts at rest. find the velocity after 4.0 s.

b. how far does the van travel in the first 4.0 s?

find the acceleration when an additional load of 1200 kg is added onto the van. Assume that the accelerating force remains unchanged.

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BARFIYAW
How much energy is required to heat 1.5 l of water at a temperature of 20 degree C to the boiling point 100 degree C?

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Mr DU MCK
Why is ice slippery?

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soccer
I am told electromagnetic waves have two components at right angles - a magnetic field and an electrical field. I was always told that an electrical field is created when a current flows-say within a wire. So how can a wave have an electrical field when no particles such as electrons are present?

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Mrs teresa mccom
A 10-kg object has a momentum of 50 kg m/s its velocity is?

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thebernie
What is the difference between nuclear fusion and nuclear fission?

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