The Cassini Orbiter spacecraft collected immense amounts of data about other planets and moons in our solar system during its twenty year mission that began in 1997.  As it flew through the upper atmosphere of Saturn's moon Titan, Cassini measured which molecules were present in the atmosphere using a time-of-flight mass spectrometer. The basic idea is that a molecule is ionized -- given a net charge of +e -- and accelerated from rest through a potential of 31 kV. Then by measuring the time it takes to fly across a distance  16 cm you can know the mass of molecule (and hence have a good idea about which molecule it is).  Given these parameters, what is the time-of-flight for a water molecule in such a device, measured in nano-seconds.  Give your answer to 3 significant digits.

Q: How much voltage must be used to accelerate a proton (radius 1.2×10−15m1.2×10−15m) so that it has…

A: potential energy due to two point charges U = kq1 q2 /r2

Q: alpha particle is Suppose an alpha particle accelerates from rest across a 1205 V potential…

A: charge = q = 2 e = 2 x 1.6 x10-19 = 3.2 x 10-19 C mass = m = 6.64 x 10-27 kg initial velocity = V0 =…

Q: scientist is busy at work in his lab trying to calculate potential differences. He observes a charge…

A:

Q: An electron enters an electric field with an initial velocity of 87286 m/s moving in the same…

A:

Q: Cathode ray tubes (CRTs) used in old-style televisions have been replaced by modern LCD and LED…

A: Solution: The given information is: The accelerating potential between the plates is V = 30 kV.  The…

Q: How many electrons must be removed from an uncharged spherical conductor of radius 0.300 m to…

A: The potential at the surface of a charged spherical conductor can be calculated using Gauss's law.…

Q: You are working as an intern for a meteorological laboratory. You are out in the field taking…

A: Given: The electric field E =165 N/C. The radius of the Earth is R = 6.37×106 m. The height of the…

Q: Cathode ray tubes (CRTs) used in old-style televisions have been replaced by modern LCD and LED…

A:

Q: An old CRT monitor is being demonstrated. You know that a beam of electrons is directed at the…

A: The potential difference across the electric field, The velocity of the electron, The distance…

Q: Cathode ray tubes (CRTs) used in old-style televisions have been replaced by modern LCD and LED…

A: Write the given values with suitable variables. d=1.62 cm=0.0162 mV=23 kV=23×103 V Here, d denotes…

Q: A particle with charge −6.74×10−6 C is released at rest in a region of constant, uniform electric…

A: Given value--- Charge = - 6.74 × 10-6 C. At a time 2.36 s after it is released, the particle has a…

Q: A proton, initially at rest, moves along the direction of a uniform electric field due to this…

A: acceleration of proton  a = eE/m = (1.6×10-19×8.11)/(1.67×10-27)  a = 7.77 × 108 m/s2  Initial…

Q: The electric field strength between two parallel conducting plates separated by 4.40 cm is 8.00 x…

A: Required :  The potential difference.

Q: Cathode ray tubes (CRTs) used in old-style televisions have been replaced by modern LCD and LED…

A:

Q: An electron is initially at rest on the surface of a spherical conductor with a radius of 0.01 m and…

A:

Q: 5. A 5.9 µC charge is accelerated by a potential difference of -7 V, which makes it go from a…

A: since the particle is going from region A to region B, the potential difference = VB-VA=0 -7 =-7…

Q: A small ball with charge q = 12.8 μC and mass m = 0.065 kg is suspended from the ceiling by a string…

A: Given:charge, q = 12.8 μC mass, m = 0.065 kg string of length, L = 2 mElectric field E of…

Q: How far apart (in m) are two conducting plates that have an electric field strength of 4.60 x 103…

A: Given data:  Electric field (E) = 4.60×103 V/m Potential difference (V) = 10.5 kV = 10.5×103 V…

Q: In one of the classic nuclear physics experiments at the beginning of the 20th century, alpha…

A: Charge on alpha particleq1 = 2e = 2 × 1.6 × 10-19 = 3.2 × 10-19 C Charge on gold nucleus q2 = 79e =…

Q: OR TEACHER In one of the classic nuclear physics experiments at the beginning of the 20th century,…

A: The alpha particle will approach the nucleus unitl all its energy is converted into electrostatic…

Q: A small particle with a charge of 6.48 uC is initially moving at 55.0 m/s. It is then accelerated…

A: Given value --- charge = 6.48 micro C potential difference = 530 V. We have to find--- How much…

Q: is a potential difference between the inner and outer surfaces of a cell membrane 7.5 nm thick. It…

A: The  charge on a Na+ ion is q=1.602×10−19C. The amount of work done is W =6×10−20 .

Q: (a) Calculate its kinetic energy in joules at 1.20% of the speed of light. ANS: 4.302 x 10^-14 J…

A: Given: Mass of helium nucleus =6.64 x 10-27 Kg 1.20% of the speed of light Formula used: Kinetic…

Q: Cathode ray tubes (CRTs) used in old-style televisions have been replaced by modern LCD and LED…

A: The electric potential and electric field intensity for the parallel plate capacitor is related by…

Q: NASA's Deep Space 1 and Dawn spacecraft employed ion thrusters in which xenon ions with a charge of…

A:

Q: In one of the classic nuclear physics experiments at the beginning of the 20th century, an alpha…

A:

Q: A small object is connected to a lightweight cord of length L=1.20 m that is tied to a point P, as…

A:

Q: What is the magnitude, in volts, of the maximum potential difference between two parallel conducting…

A: Given: The strength of the electric field is 3x106 V/m. The separation between plates is 0.51 cm.

Q: how far was it raised or lowered?

A:

Q: Cathode ray tubes (CRTs) used in old-style televisions have been replaced by modern LCD and LED…

A: Given Quantities: The distance of separation between the plates(dx) = 1.44 cm The potential…

Q: An electron is to be accelerated in a uniform electric field having a strength of 1.90  106 V/m.…

A:

Q: electron is fired at a speed vo= 4.5 x 106 m/s and at an angle 8 = -45° halfway between two parallel…

A: The speed of electron is V° = 4.5×106m/s The fire angle of electron is The distance between the two…

Q: Cathode ray tubes (CRTs) used in old-style televisions have been replaced by modern LCD and LED…

A: Given:- The CRT included a set of accelerating plates separated by a distance of about 1.54 cm.…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.