An atomic nucleus at rest decays radioactively into a smaller nucleus and an alpha particle (i.e. a helium nucleus). The alpha particle is leaving the original nucleus at a speed of 2.5 × 105m/s. Will the smaller nucleus remain at rest or will it move as well? Explain.

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A: Given,     Initial angular velocity ω1=0.43 rad/s      Final angular velocity ω2=1.5 rad/s     Time ...

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A: Draw the free-body diagram of the system.

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Q: Problem 1 A 5.0 kg box has an unknown initial velocity, Vo, when it runs into a light spring of forc...

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Q: The graph provided shows the maximum kinetic energy of ejected electrons plotted against the frequen...

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Q: A car is moving around a circular track. At the beginning of a time interval it is moving at 100 km/...

A: Change in velocity = final velocity - initial velocity = v̅2 - v̅2 

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A: The density of a substance is its mass per unit volume. Here, we calculate the given as follow;

Q: A sinusoidally oscillating current I(t) with an amplitude of 4.55 A and a frequency of 879 cycles pe...

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Q: ward speed of 33.0 km/h and is accelerating at 2.3 m/s2 . Determine (a) a speed and (b) that of B, w...

A: We know that the  relation between the angular  velocity to the  linear velocity  is given as  v = ω...

Q: 5. A car moves in a straight line such that for a short time its velocity is defined by y( 3t + 2t m...

A: Velocity = dx/dt = rate of change of                                                          displa...

Q: A stamp collector wants to magnify an image by 4.0 when the stamp is 3.5 cm from the lens. What foca...

A: Given Information:- Magnification of the image is m=4.0 Distance of the stamp from the lens is do=3....

Q: Inductive charging is used to wirelessly charge electronic devices ranging from toothbrushes to cell...

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Q: Data Table Length of pendulum (m) Perlod Time for 10 wwings (1) Frequency, 0.20 m 0.30 m 0.40 m 0.50...

A: The formula for the period T of a pendulum is T = 2π * √(L/g),where L is the length of the pendulum ...

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Q: A 50-kg crate is suspended from a fixed beam by a two vertical ropes. What is the tension in each ro...

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Q: A solenoid of length 2.50 cm and radius 0.750 cm has 33 turns. If the wire of the solenoid has 1.25 ...

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Q: Consider the mass spectrometer shown schematically in the figure below. The magnitude of the electri...

A: Given - Electric field , E = 2.00×103 V/m  Magnetic field , B = 0.0400 T  Mass , m = 2.32×10-26 kg U...

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Q: TRUE OR FALSE  1. It is the gravitational pull of the earth that keeps us and other bodies    firm...

A: As we know that the earth keeps pulling down the objects constantly with gravitational acceleration ...

Q: Question 2 A rock is thrown into a pond. The rock sinks don 8 m to the bottom of the pond. (a) Calcu...

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Q: Two identical wheels, wheel 1 and wheel 2, initially at rest begin to rotate with constant angular a...

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Q: 2. A piston in one of the cylinders of an engine creates an added pressure of 5.00 N/m² for a compre...

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Q: A bolt is turned by a force of 54 N which is applied perpendicularly at the end of the handle of a w...

A: Given that                   The length of the wrench is (r) = 0.30m  and           The force is (F ...

Q: Sketch v, for each network of Fig. 2.161 for the input shown. Would it be a good approxima- tion to ...

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Q: The performer vibrates the strings of a. percussion family the instrument by using a bow or by pluck...

A: Percussion instruments include any instrument that makes a sound when it is hit, shaken, or scraped....

Q: 0.04 cm liquid column balances the excess pressure inside a soạp bubble of radius 6 mm. Evaluate den...

A: Given data,  T = 0.03 Nm-1   R=6mm      = 6*10 -3  m  h = 0.04     0.04* 10-2  m

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Q: Light in air is incident on a transparent glass slab. The angle of incidence is 34.3°. The slab is t...

A: When light incident from medium 1 (refractive index n1) to the interface of medium 1 and medium 2 at...

Q: What is the resistance of copper wire that has a length of 1 kilometer and a diameter of 0.505 mm?

A: Given data:  A copper wire  Length (L) = 1 km = 1000 m Diameter (d) = 0.505 mm = 0.505×10-3 m Requir...

Q: A 2 ohm heater takes 5 amperes while submerged in 1400 grams of water contained in a vessel with a w...

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Q: Assume a water strider has a roughly circular foot of radius 0.0152 mm. The surface tension of water...

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Q: An NPN transistor is used in common emitter configuration as an amplifier with 1 kQ load resistance....

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Q: ne walls of living cells have surprisingly large electric fields across them due to separation of io...

A: thickness d= 8.0nm = 8.0*10-9 m Electric field E= 5.50 MV/m = 5.50*106  V/m

Q: Sernel none storqvelo acf u spred of 280 mis. Af fa lenth is 3.1 cm , ushat» it8 weave wshoct the fr...

A: Given data:  Speed (v) = 280 m/s Wavelength (λ) = 3.1 cm = 0.031 m Required: Frequency (f) 

Q: The magnetic field at the center of a 1.3-cm-diameter loop is 2.1 mT a.What is the current in the l...

A: Given that, Diameter(D)= 1.3 cm  So, radius (r)= D/2= 1.3/2= 6.5× 10-³ m Magnetic field at the centr...

Q: Ice has a dielectric constant of 3.2. If capacitor A originally has a capacitance of 0.60 F, what is...

A: Capacitance of parallel plate capacitor C = ε₀AK/d  K = dielectric constant A = area of plates d = d...

Q: Mars has a mass of 6.46 x 10²3 kg and a radius of 3.39 × 10° m. a) Calculate the acceleration due to...

A: Given data:   Mass of Mars (M) = 6.46×1023 kg Radius (R) = 3.39×106 m Mass of the person (m) = 65 kg...

Q: A raindrop of mass 3.07 x 10 kg falls vertically at constant speed under the influence of gravity an...

A: Mass=3.07×10^-5kg Height=115m Acceleration due gravity=9.8m/s²

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Q: Four conducting spheres labeled A, B, C and D are charged to the following values: qA = 2.0 ?C, qB =...

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Q: Why is the Galilean telescope more useful viewing objects on the earth, than the Keplerian telescope...

A: A keplerian telescope   has a intersect lens eyepiece and a Galilean Telescope has a departing lens ...

Q: 0 kg 0 kg B

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Q: When an electromagnet attached to the subway train is moving with velocity v above the rail, the edd...

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Projectile Motion