A proton is placed midway between two parallel horizontal conducting plates 2 cm apart in air. What must be the magnitude of the potential difference between the plates for the electrons to remain stationary? What must be the sign of the charges in each plate?

Q: A particle is observed to start at rest and accelerates at a 30 + 2t, where t is in seconds, until i...

A: acceleration a = 30+2t Retardation a= -0.003v2

Q: Find the resultant and direction of the following forces using component method; F 18 Ibs N68°E, F2=...

A:

Q: has a mass of 1820 kg and is orbiting at an elevation of 65.0 km from the surface, what is the gravi...

A: Given: The mass of the moon is 7.348x1022 kg. The mass of the LRO is 1820 kg. The distance of the LR...

Q: A 60 kg Gila monster on a merry-go-round is traveling in a circle with a radius of 3 m at a speed of...

A: Given, A 60 kg Gila monster on a merry-go-round is traveling in a circle with a radius of 3 m at a s...

Q: (Q5): How much energy is released in the following nuclear reaction: n+ U→Sr + Xe + 12 n 136 38 Assu...

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Q: a- Can the red colour = 700nm eject electrons from the metal surface? Explain? b- Complete the schem...

A: Given  Work function,W = 2 eV  For red light , wavelength = 700 nm   Energy incident, E = 1.77 eV   ...

Q: 4. A block of mass m accelerates up a slope that has friction. a. Draw a free-body diagram for the b...

A:

Q: A car moving with a speed of 90km/h was brough to rest by the application of brakes in 10 second.how...

A: Initial velocity of car =90km/hr =25m/s Final velocity of car = 0 time t = 10s

Q: An outdoor concert speaker emits sound at 125 dB, as measured 1.00 meter away. How far away do y...

A: Given: Sound intensity level=125 dB Initial distance(R1) = 1 m Relatively safe sound intensity level...

Q: In what direction in space with respect to Earth's rotation axis and the plane of its orbit is the t...

A: The Earth axis is tilted (23.5°). In june, sun's rays all the way to north pole ( in northern hemisp...

Q: Which of the following quantities are vectors? distance, time, mass, area, energy, impulse, temperat...

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Q: A newborn baby is placed on scale and found to have a mass of 3.6 kg. What is the normal force actin...

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Q: 47 +5k and M = 31 + 4} +5k The angle made by the two vectors S = 3î is:

A: Dot product of two vectors can be calculated by A·B =|A| |B| cos θ  where Theta is the angle between...

Q: If you place a test charge 7.5 x 10−6 m away from a source charge of 8.6 x 10−5 C, how much electric...

A: Given, Source charge, q = 8.6×10-5 C test charge is placed at a distance of, r = 7.5×10-6 m

Q: Shaw is riding his bike when he suddenly hit his brakes causing him to slow down at a rate of -2.75m...

A: Retardation of Shaw bike= -2.75m/s2 Final velocity = 0 Time t= 3.27

Q: Mr. And Mrs. Austria love to run around the town. From past experienced, they know that Mr. Austria ...

A:

Q: A skateboarder is attempting to make a circular arc of radius r = 19 m in a parking lot. The total m...

A: mass = 95 kg coefficient of static friction = 0.66 radius (r) = 19 m   

Q: How far should a cellist move her finger to adjust a string's tone from an out-of-tune 449.9 Hz to a...

A:

Q: A plane flies with a velocity of 235m/s making an angle of 48 degrees, North of East. b. Find the h...

A: Given: The speed of the plane is 48o North of East.

Q: Diagram the forces acting on the crate.: B.) Pulling a crate at an angle A.) Pulling a crate ... 30°

A: According to question we need to draw the free body diagram.

Q: what is the direct relationship between temperature and speed of sound?

A: There is a simple relationship between temperature and the speed of sound. The speed of sound increa...

Q: Junjun is standing at a window 6m in height, watches a falling object pass by the window in 0.4 seco...

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Q: Determine potential energy of ball at height of 10 m from ground having mass 3 kg

A: Given data : Mass=m Height=h Acceleration due to gravity=g

Q: The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.0 m...

A: initial velocity (u) = 5 msmaximum height above the right side of the ramp = h   

Q: A police car accelerates from rest to a velocity of 15 m/s in 6.2 seconds. What is the average accel...

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Q: When pushing off horizontally from a pool wall with her legs, the resulting force of the wall on the...

A: compression in length (∆L) = 2.98×10-5 m Length (L) = 36 cm = 0.36 m Radius (r) = 1.82 cm = 0.0182 m...

Q: A rocket has been launched at an initial velocity of 24 m/s at an angle of 60° above the horizon. It...

A:

Q: At 20°C, the carbon resistor in an electric circuit connected to a 6.0-V battery has a resistance of...

A: Given  At 20° C ,  The voltage supply ,V = 6.0 V  Resistance , R = 2.6*102 ohm    At 73 ° C ,  the c...

Q: rticles of charge – q are arranged symmetrically about the y axis; each produces an electric field a...

A: We know that according to the given two charges -q is arranged symmetrically about the y axis. which...

Q: A particle charge of 1.8 µC is at the center of a Gaussian cube 65 cm on edge. What is the net elect...

A: The answer is below

Q: A wave has a frequency of 35 Hz. What is the period of the wave?

A: Given data The frequency of the wave is given as f = 35 Hz.   The mathematical expression for the ...

Q: A 8.00 kg block of ice, released from rest at the top of a 1.50-m-long frictionless ramp, slides dow...

A:

Q: Heather & Bryce can apply a force of 32-N to a wagon with some of their toys and play items that has...

A: Given data:  Force (F) = 32 N Mass (m) = 20 kg Initial velocity (Vi) = 0 m/s Time (t) = 4 s Required...

Q: A Car brakes from 32 m/s to a stop over a distance of 68 m. a)What is the acceleration of the car? ...

A: Given data:  Initial velocity (Vi) = 32 m/s Final velocity (Vf) = 0 m/s Distance (d) = 68 m Required...

Q: Determine moment of inertia about centroid along axis of rectangular section having width=5 m and de...

A: Given data : Width=B Depth=h   To find : Moment of inertia about centroidal axis in XX Direction  

Q: 1. Margaret put the 2.0 Kg brick has the dimensions 7.5 cm x 15 cm x 30 cm in the table top. Find t...

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Q: In an experiment, a shearwater (a seabird) was taken from its nest, flown a distance 5120 km away, a...

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Q: A potential difference of 12 V is found to produce a current of 0.35 A in a 3.3 m length of wire wit...

A:

Q: Arrange the following stars in order of increasing temperature: Red, white, blue, yellow red100 bill...

A: Stars in increasing temperature order :   1. Blue 2. White 3. Yellow 4. Red

Q: A projectile is launched with an initial speed of 30 m/s and at an angle of 60 degrees with the hori...

A: Data Given ,  Initial velocity ( u ) = 30 m/s Angle ( θ ) = 60°   

Q: a vehicle travels at the rate of 80kmph what distance will it travel in 15 mins

A: Given  Speed v=80km/hr=80×518=22.22 m/s Time t=15min=15×60=900s  

Q: 4. An LRC series circuit consisting of an inductor L = 10 mH, a resistor R = 5.5 Q and a capacitor C...

A:

Q: 4- |Ā| A 5- | B| 6-А. В

A: Given data:  A→ = 2i^ + 3j^ + 4k^B →= i^ - 2j^ + 3k^

Q: - Energy is measured in the same units as (1) force (2) momentum (3) power (4) work Which quantity a...

A: Required:  Which quantity has same unit as energy 

Q: The disintegration energy of the decay30 P15 by position emission is 4.30 Mev.  The daughter nuclide...

A: Given, The disintegration energy of the decay30 P15 by position emission is 4.30 MeV. The daughter n...

Q: 50. A spring has a spring constant of 120 newtons per meter. Calculate the elastic potential energy ...

A: Given: The spring constant is 120 N/m. The stretching in the spring is 2 cm.

Q: Consider a vessel of diatomic nitrogen gas at room temperature. (a) What is the most likely speed of...

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Q: What is the potential difference between the plates of a 3.3-F capacitor that stores sufficient ener...

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Q: (a) What is the entropy change of a 44.8 g ice cube that melts completely in a bucket of water whose...

A:

Q: Identify the unknown particles X and X' in the following nuclear reactions. (In parts (a) and (b), e...

A: Given particle X and X' We have to find missing product or reactant  in(a) and (b) Your answer is o...

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.