How much resistance does a heavy duty flashlight have if it has a current of 25 mA flowing through it and is being powered by four 1.5 V cells?

Q: Two point-like beads of mass are free to slide on a rod (mL²) of length L= 14 m and mass m as shown ...

A: Given, Mass of bead m8mass of rod mlength of rod L=14m 

Q: 1.The Effect of Temperature on Conductivity of Superconductors 2. How are conductance and electrical...

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,...

Q: Assume the Earth and Moon together form an isolated system. The mass of the earth, mass of moon and ...

A:

Q: Useful constants:   k=9.00×109 N.m2/C2   ε0= 8.85×10-12 C2/N.m2   µ0=4π×10-7 T.m/A   mp=1.67×10-27 k...

A: Given that magnetic field is in the positive x direction.  Square current loop is placed in a unifor...

Q: Solve

A: For a, According to the work and energy method, P=12k1u12+12k2u32+12k3(u1-u3)2+12k4(u1-u2)2 W=-F1u1-...

Q: A particle moves so that its velocity (ms-l) at time t seconds is given by the formula v = e2sin31 c...

A: (a) (i) Given: The velocity of a particle at a time t is given by v=e2sin3tcos3t. Introduction: Acce...

Q: Cross sectional area affects the temperature gradient. Select one: a. True O b. False

A: Express the relation for the heat transfer through conduction process as: Q=kAdtdx ......... 1 Here,...

Q: (a) If the power output of a 670 kHz radio station is 49.0 kW, how many photons per second are produ...

A: Given data: The frequency is f=670 kHz. The power is P=49.0 kW. The distance is r=125 km. Part (a)...

Q: A block of 5 kg is pushed up against a platform that is attached to a spring of 1200 N/m. The spring...

A: (a) Given: The mass of the block is 5 kg. The spring constant is 1200 Nm. The block starts out at a ...

Q: A vertical spring-mass system has a 0.6 kg weight attached to its end. You stretch the spring 0.4 m ...

A: Given, Mass,m=0.6kgLength,L=0.4mFrequency,f=2.5Hz (a) We have the expression of the spring force, 2π...

Q: Consi der tuo concentric retal spherical shell s. The material between them has a conductivity o. Ra...

A:

Q: Determine the current I in the circuit below.  Use Current = Voltage/Resistance.  Enter units as A.

A: Given:  E=18 VR=3Ω  

Q: A resistor, capacitor, and inductor are in a connected series with an AC power source that has rms v...

A: given: R=2000 ohm L=3 H C=40µF

Q: An electron is trapped in a one-dimensional region of width 0,05 nm. Find the three smallest possibl...

A: Energy for a particle confined in a one dimensional well is- En=n2π2ℏ22mL2    =n2E0where n=1,2,3,......

Q: The magnetic field in a region of space is shown in the figure below. Four points A-D are shown. In ...

A: #NOTE: Thank you for the question. As per the company honor code, we are allowed to answer up to thr...

Q: Draw the graph and show complete solutions Let: q1 = +8 μC , at the originq2 = +6 μC , 6 meters to t...

A: Given: q1 = +8 μC , at the originq2 = +6 μC , 6 meters to the right of the originq3 = -86 μC , 8 met...

Q: 6. In the pictured LRC circuit, the capacitor was charged by the 25.0 V battery for a long time. The...

A: Given:-          

Q: Determine the voltage in the circuit below.  Rearrange Current = Voltage/Resistance.                ...

A: The resistance of the resister is given as, R = 80 Ω The current flowing through the circuit is give...

Q: Please good handwriting and clear ideas explaining the process!  b) Determine the magnitude of the f...

A: Let Differential length dy  y=r tanθdy=r sec2θ dθcosθ=rdr=d cosθd=r secθMagnetic field is given bydB...

Q: Phosphorous was added to high purity silicon to produce a 10 ? charge carrier concentration at room ...

A: Semiconductors are materials having small bandgaps between valance band and empty conduction band. F...

Q: A spherical shell with a mass of 0.41 and a radius of 0.33 is to roll across the level ground under ...

A: Given: The moment of inertia is denoted as I=23MR2 The mass of shell is 0.41 and radius is 0.33 The ...

Q: Suppose we have a 1 meter string fixed at both ends. Circle all the possible wavelengthsfor standing...

A:

Q: An electron is trapped in an infinite well of width 0,12 nm. What are the three longest wavelengths ...

A: The width of the infinite wall is given as, L = 0.12 nm (or) L = 0.12×10-9 m TO DETERMINE: The three...

Q: If an electron is in the ground state of the hydrogen atom, the probability that its distance from t...

A: The ground state wave function of H atom is given as, ψ=1πa0312e-ra0 Here, a0 is the Bohr's radius. ...

Q: Express the following binary number in

A: Given: (1100110.110)  

Q: The velocity of spike propagation is proportional to the following combination of factors: 1 a C V R...

A: The velocity of the spike propagation is given as, θ~1CmaRmRi where a is the radius of the axon, Rm ...

Q: A pendulum consists of a mass m and a massless stick of length I. The pendulum support ocillates hor...

A: Given, A pendulum consists of a mass m and a massless stick of length l 

Q: 3. The position of the particle which moves along straight line is defined by the relation x = t3 – ...

A: Since we only answer up to 3 sub-parts, we’ll answer first 3. Please resubmit the question and speci...

Q: part b please

A: Given that: λ=1.0×10-11 m

Q: Two identical stunt professionals Aand B stand on the roof of building 1.Person A steps off of the r...

A: Mass of A and B are same. Let contact time for both persons are to be same.

Q: A 30-turn circular coil of radius 7.0 cm and resistance 4.0 is placed in a magnetic field directed p...

A: As per Faradays law any change in the magnetic flux will cause a voltage in the coil. this voltage i...

Q: Please answer the questions l have 30min of exam?

A: Given, I1= 5.71 AI2=5.72Aε2 = 20V And from question For left part, E1-4ΩI1-5ΩI1+I2+E3-4ΩI1=0ε1-4Ω×5...

Q: A smooth flat plate with length L and width b is immersed in a stream of fluid (and ) flowing at U. ...

A: Given data: The length of the smooth flat plate is L The width of the smooth flat plate is b The vel...

Q: 4. How much heat in kJ is required to heat all the water in a pool by 2°C if the dimensions are 6ft ...

A: Dimensions of the pool,  l=75 ft b= 6 ft h= 5 ft Specific heat capacity, Cp= 4.184 J/g·°C Rise in T...

Q: Given the aperture function f(x) f(x) = tri(x – a) + tri(x + a) - where S1 – |x], if |x| < 1 tri(x) ...

A: The given aperture function fx as, fx=trix-a+trix+a where, trix=1-x, if x≤10, elsewhere Thus, trix-a...

Q: A block of mass 2 kg begins with velocity 2.3 m/s at the top of a curved track at a height h= 9.9 m ...

A: Mass of the block, m=2 kg velocity at point A, V1=2.3 m/s velocity at point E, V3 =0 Height, h=9.9 m...

Q: 11) What amount did you start with when you have 2.84-g left and you went through 0.25-half-lives?

A: A radioactive nucleus decays by emitting radiations out. Half-life determines the rate of radioactiv...

Q: 2. A thin lens is constructed by shaping a piece of glass into circular curvatures on both sides. Co...

A: Given: Radius of the left-lens is 17.4 cm Radius of right lens is 14.3 cm Refractive index are 1.45 ...

Q: A ping pong ball was dropped and was rolling inside the bowl without slipping. By knowing that the p...

A: Radius of the ball=r Radius of the bowl=R The ball rolls without slipping Let the mass of the ball i...

Q: Two vectors, when combined, will have a resultant vector of 500 N with an angle of 150°. If the firs...

A: Given: To find the second vector magnitude and the direction is given as,  

Q: Please find the question, Refer Attachment.

A: Given: The formula for equivalent resistance connected in series is R=R1+R2. The formula for equiva...

Q: The wave functions for two waves traveling in the same direction on a string are described below: an...

A: Given: y1(x,t) =0.2 sin (8x-50t) y2(x,t)=0.2 sin (8x-50t+π/6)  

Q: It is NOT 0.039 or 0.039, pls dont answer this if this is ur answer

A: Concept used: Heisenberg's uncertainty principle states that energy and time of a reaction cannot be...

Q: Please answer only i,  ii,  and iii only briefly

A: Given In Figure, a spring-block system is put into SHM in two experiments. In the first, the block i...

Q: A particle starts from rest at xo (> 0) in an attractive inverse-cube force field F = -(k is a posit...

A: The force field of the particle is given as, F = -kx3 k is the positive constant, The particle start...

Q: Determine the amplitude and maximum velocity of a particle which moves in simple harmonic motion wit...

A: Given Acceleration (a)  = 15 ft/s2 Frequency (f)      = 8 Hz

Q: A STOP SIGN HANGS FROM A POLE. THE POLE ( AB ) IS MADE UP OF CARBON FIBER AND HAS A LENGTH OF 7.20 M...

A: The tension of the cable CD and the Horizontal and vertical reaction of Pin A. given, length of pole...

Q: A vertical spring-mass system has a 0.6 kg weight attached to its end. You stretch the spring 0.4 m ...

A: Sometimes people think that the amount of a spring-mass oscillator depends on the amplitude. Increas...

Q: Q1B

A: First we calculate the speed relation for roller-coaster in curved path, vdvs=v˙vdv=v˙dsvdv=(-0.05 s...

Q: A 1,350 kg package is dropped from a plane from a height of 760 meters. What is its potential energy...

A: Given, Mass,m=1350kgAcceleration due to gravity,g=9.8m/s2Height,h=760m We have to calculate the pote...