A battery provides emf (voltage), ε = 12 volts. it has an internal resistance Rinternal = .4, so you need to include this resistnace in your circuit. A resistor, R, is connected to the battery. find the valuse of R so that the power dissipated in R equals 80 Watts

Q: A drag racer starting from rest accelerates in a straight line at a constant rate of 5.5 m/s? for…

A: We know that the first equation of motion is given as   v = u + at  here v is the final velocity  u…

Q: 's 3rd law of motion? Examples needed. Th

A: Newton's 3rd law of motion:-  We know that Newton's third law of motion is also known as the law of…

Q: 2. A car starts from rest and reaches a speed of 27.0 m/s in 7.4 s. What is its rate of

A: Answer is 3.65m/s

Q: A wire of length 0.5 m carries a current 0f 20 A. In the presence of a magnetic field of 0.5 T, the…

A: length of wire (L) = 0.5 m current (I) = 20 A magnetic field (B) = 0.5 T magnetic force (F) = 4 N

Q: A barrel contains a 0.180 m layer of olive oil floating on water that is 0.40 m deep. If the…

A:

Q: Two charges, qı =-1.069 µC and unknown charge q2 are separated by distance 6.92 cm, and placed with…

A:

Q: [7] The polar coordinates of a point are r 5.5m and 0 240°. What are the cartisian coordinates of…

A: We are authorized to answer one Question at a time, since you have not mentioned which question you…

Q: An automobile moving at a constant velocity of 15m/s passes a gasoline station.Two seconds…

A:

Q: Suppose an object such as a book page is held 7.50 cm from a concave lens of focal length –10.0 cm.…

A:

Q: A 2-ringed rotation space station is shown below. The inner ring, labeled ring A, has a radius rA =…

A:

Q: 4. An attractive force of 1500 N exist between a 900 nc charge and another charge. The two charges…

A:

Q: • Part A An air-filled toroidal solenoid has 380 turns of wire, a mean radius of 12.5 cm, and a…

A: Here I have changed cm2 to m2 and cm to m . The solution is as follows

Q: A man weighs a fish with a spring scale attached to the ceiling of an elevator. While the elevator…

A:

Q: Point charges q1 = q2 = 4.0 x 10-6 C are fixed on the x-axis at x = -3.0 m and x = 3.0 m. What…

A:

Q: Light travels through a boundary between two media of refractive indices n1 and n2, such that nị <…

A:

Q: A metal rod of length 1 m moves perpendicular to the magnetic field of 0.2 T. An EMF of 0.25 V…

A:

Q: Problem 4: A mass m at the end of a spring of spring constant k is undergoing simple harmonic…

A:

Q: [20] A particle moves from a point in the xy plane having Cartesian coordinates (-3.00, -5.00) m to…

A: *** Since the given questions are not connected to each other so according to the bartleby…

Q: Please answer it in detailed solution. I have attached the formulas and references that we use.…

A:

Q: Problem 4. A point source emits sound waves uniformly in all directions. At distance 90.0 m from the…

A:

Q: Consider a lens shown schematically in the picture below and an object of height h, placed distance…

A:

Q: Samantha pushes a 50-N crate up a ramp

A:

Q: *- cer pua page dn page up delete Name 8 6. Date Block Score Graphing Motion Lab Coar. The goal of…

A: Please see the answer below.

Q: A60 A curent is charging a 1.3 Cn-diameter paralel-plate capacitor Part A What is the magnetic Beld…

A:

Q: How strong is the electric field between two parallel5.8 mm apart if the potential difference…

A:

Q: A technician draws plans for a 400,000-gallon cylindrical tank with radius 25.00 ft. What should…

A:

Q: The value of a wavelength in the Balmer series is 372.1 nm. What is the value of n? 1 1 R 22 where,…

A:

Q: Metal spheres A and B in figure below are initially neutral and are touching. A negatively charged…

A:

Q: square plate with edge length 9.10 cm and mass 488 g is hinged along one side. If air is blown over…

A:

Q: What is the maximum force of friction between a 40kg box and the floor if the coefficient of…

A:

Q: A phosphate molecule PO of mass m = difference |AV| = 4.35 V and enters the mass spectrometer with…

A:

Q: A driver traveling at night on a country road suddenly sees another car pull out into the roadway in…

A: Given that,  Distance of skidding, ΔS = 72.9 m Acceleration, a = 4.8 m/s2 Time, t = 4.5 sec

Q: A heater is being designed that uses a coil of 14- gauge(1.63mm in diameter) nichrome wire to…

A: The length of the wire is 75.23 m.

Q: What is the Schwarzschild radius (in km) of a 20 solar mass black hole?

A:

Q: spring tes withl an ampi LIoniess, nonzontal surface. Find the potential energy when its position is…

A:

Q: The image of an object reflected in a huge convex mirror of radius 5.6 ma has a height h; =0.95 m.…

A: Given Object distance from surface of mirror = 5.1 m Height of image = 0.95 m Radius of mirror = 5.6…

Q: A sample of pure sodium has a mass of 11.0 g. Calculate the number of moles in the sample and sodium…

A:

Q: alculate the magnitude and direction of the electric field 0.45 m from a + 7.85 x 10-9 C point ch

A:

Q: Problem 1:   The puffer fish (tetradontiade) can employ a defense mechanism whereby it fills its…

A:

Q: What are the expected readings of the following in the figure below? (R = 7.60 0, AV = 5.00 V) R Δν…

A: A). ideal ammeter I= 0.327MA B) ideal voltmeter V=0.5V C).ideal ammeter i =0.93Ma      Ideal…

Q: A sinusoidal wave is described by the wave function y = 1.8 sin ( 0.49 x + 28 t) where x and y are…

A:

Q: What are ferromagnetic materials? Why does the magnetization curve of these materials form a…

A: We have to write the ferromagnetic substance

Q: Consider two very long wires, A and B, that carry the same current in +x direction, as shown in the…

A: Given in question - Two wires are carrying the current in the same direction(+x Direction) To find:…

Q: An infected tooth forms an abscess (area of infected tissue) that fills with gas. The abscess puts…

A: Answer - NO, this therapy will not work on the affected region.   Explanation : Since, according to…

Q: 7. A force Of 100 N is directed north on a -20 µc point charge. What is the magnitude and direction…

A: The force acting on a charge q placed in an electric field E is given by, F = qE If the charge is…

Q: In good weather the drive from Seattle to Spokane,Washington, on Interstate 90 takes 3 h 51 min at…

A: Given Time taken in good weather is t1=3 h 51 min=3 h+5160 h=3.85 h Average speed in good weather is…

Q: Person 1 mixes 1g of water at 0 degree celcius with 10g of water at 100 degree celcius. While person…

A: first person : mass of water at 0 degree C = 1 g mass of water at 100 degree C = 10 g

Q: You are pushing a 40 kg sled across some snow with a coefficient of friction of 0.2. How much force…

A: Answer :  The force required to push must be 78.4N .

Q: ptical power of glasses

A: -0.33 diopters

Q: A pickup truck is moving at 25 m/s with a toolbox of mass m resting on the bed of the truck 2.8 m…

A: 1.189sec time elapses before the toolbox stricks the cab. So your answer us t=1.189sec.