3. A toy railroad engine having a mass of 1.5 kg and moving on a straight track at 0.20 m/s collides with a similar engine ahead of it moving in the same direction at 0.12 m/s. On colliding, the engines lock and remain together. (a) What is the momentum of each engine before the collision? (b) What is the magnitude and direction of the momentum of both engines after the collision? (c) What is the velocity of the pair of engines after the collision?

Q: An electron is moved from point A to point B in a uniforı electric field and gains 1.20 x 1015 J of ...

A: The electric potential difference or voltage of a battery is the potential energy difference across ...

Q: COMBINATION OF SERIES AND PARALLEL R1 = 7N R3 = 6 2 V = 24 V R2 = 10 N{ %3D R4= 40 (a) Circuit schem...

A:

Q: 39. A golden delicious apple of mass 0.10 kg from Mr. Sawinski's back yard is atta to a vertical spr...

A: According to conservation of energy Total energy of isolated system remains constant. We can use con...

Q: 2. At time t = 0, the vectors E andB are given by E = vectors, Eo and Bo are fixed and orthogonal. T...

A: Given,E=E0 B=B0 We have to find the E and B at a general time t  

Q: Same situation as in the previous two problems this time the magnet s mass is 6.91 kg and the magnet...

A: Given, Mass=6.91kg Magnetic force=105.6N Length of cord=1.66m Length of celling=2.91m  

Q: A cylinder has a length of 3.23 cm, a diameter of 1.75 cm and a mass of 65.3 grams. What is the dens...

A: Given, Length of cylinder (L) = 3.23 cm Diameter of cylinder (d)= 1.75cm Mass of cylinder (m)= 65.3g

Q: On a wide level field, a ball is tackled at 40 degrees above the horizontal at a speed of 30 m/s. Fi...

A:

Q: What is the resistance of an automobile headlight through which 2.50 A flows when 12.0 V is applied ...

A: Given information: The current through the lamp (I) = 2.50 A The potential difference across the lam...

Q: A 0.85-kg toys undergoing SHM on the end of a horizontal spring with forces constant k=300.00 N/m. W...

A:

Q: 1. Consider n moles of gas. If you are to include the finite volume b of a mole, how should you writ...

A: 1. Given:- b= finite volume of a mole= volume correction for 1 mole of atoms. Total volume occupied ...

Q: Consider a negative charge -Q that is uniformly distributed along the y-axis betweer y = 0 and y =l ...

A:

Q: Light reflected from the front surface of a dense flint windowpane (n = 1.655) has an intensity I1. ...

A: Given data as per question n = 1.655

Q: The dimension of intensity of magnetic field is: 1. [M°L1T°A'] 2. [M'L'T?A1] 3. [M'LOT?A1] 4. [M'L!T...

A: Magnetic field Intensity-   Magnetic field intensity at any point in a magnetic field is the force e...

Q: Fourth question: A car moved from rest at point A and accelerated Cuniformly at a rate of (2 meters ...

A:

Q: Anja is driving west in a straight line. After driving for 5.50 km, she turns south, and drives for ...

A: According to question we need to find displacement. 

Q: At highway speeds, a particular automobile is capable of an acceleration of about 1.8 m/s

A:

Q: Part A What is the coefficient of kinetic friction between block and surface? A 5.00-g bullet, trave...

A:

Q: Question A hose of radius 7.74 mm, is being used to fill an aquarium. If the Reynolds number is meas...

A: Given, Radius=7.74mm Reynolds number=1350 Average speed of water=?

Q: •• The capacitors referred to in this problem have only empty space between the plates. (a) Show tha...

A: Capacitance of a parallel plate capacitor=€A/d

Q: An inductor (L = 20 mH), a resistor (R 100N) and a battery (E = 10 V) are connected in series. Find ...

A:

Q: 8. Spheres A, B and C have charges of 8.0 C, 12.0 C, AND -5.0 C respectively. The three spheres are ...

A: 8)  Given, Spheres  having charges of,  QA = + 8.0 CQB = 12.0 CQC = -5.0 C

Q: Question 4. A positive point charge q = +2.50 nC is located at a = 1.20 m and a negative charge of –...

A:

Q: 16. A _________ is an elongated, rigid object that can be used to alter the distance of movement pro...

A: 16) A lever is an elongated, rigid object that can be used to alter the distance of movement produce...

Q: In the figure, a frictionless roller coaster car of mass m = 820 kg tops the first hill with speed v...

A: According to conservation of energy Total energy of isolated system remains constant. Initial KE + i...

Q: + 1 2 3 4 5 Voltage (V) Current (mA)

A: Given data-               V vs I graph is given in the question. horizontal axis represents the volt...

Q: Find The value of Work done if fosice applied is Ġ N 'cohich dis place the obyect by 4

A: Given data :                     Displacement  of the object  =   D                      Force     =...

Q: An electric current of I ampere is flowing in a long conductor CG as shown in the Fig. 3 (a).54. Fin...

A:

Q: 10 Imagine an alternate universe where the value of the Planck constant is 6.62607 × 10" J·s. In tha...

A:

Q: Which of the following combinations has the dimension of electrical resistance (€o is the permittivi...

A: We construct the dimensional formulae for both the quantities and use them to find the required answ...

Q: An artificial satellite circles the Earth in a circular orbit at a location where the acceleration d...

A:

Q: Given a parametric parabolic trajectory of x = 56t and y = 76t - 4.9t where x and y are measured in ...

A: The parametric form of the parabolic trajectory is given by x=56t and y=76t-4.9t2

Q: A spring 0.2 m long extends 0.001 m when a mass of 6 kg is hung from it.  How far will a similar spr...

A: Given Original length = 0.2 m Extension = 0.001 m Mass hanged = 6 kg 

Q: A car from rest takes 5 seconds to travel a distance of 30 feet. How long will it take for the car t...

A:

Q: Find the magnitude of acceleration of an object with mass m sliding down an incline 0 where friction...

A:

Q: 2. Find the curl of the vector field a = x°y°z°i + y°z°j+ x°z'k.

A:

Q: A point along the minute hand of a clock covers an area of 12π cm2 at a certain time. What is the an...

A: We know ,  Minute hand complete a full revolution  in one hour .   Total angle rotated by minute han...

Q: A capacitor is composed of 2 plates separated by a sheet of insulating material 2mm thick and of rel...

A: We have a parallel plate capacitor which has an insulating material of d1=2mm thickness having relat...

Q: Conduc-Thor-s. Thor has two square prism conductors that are made of the same ohmic material and wit...

A:

Q: In a football match, a player kicked 400 grams of football with a speed of 70 miles per hour at an a...

A: impulse is  rate of change in momentum. It is given by  F =m∆V∆tF∆t =m∆V

Q: MBINATION OF SERIES AND PARALLEL Rq = 7 N R3 = 6 N V = 24 V R2 = 10 N RA = 4 N (a) Circuit schematic

A:

Q: A (3.70x10^3)-line/cm grating produces a third-order fringe at a (2.942x10^1)° angle. What wavelengt...

A:

Q: Problem 3: Consider two coaxial infinite cylinders of radii a and b (b> a). The inner cylinder carri...

A:

Q: what two angels of elevation will enable a projectile to reach a target 13km downrange on the same l...

A: Given  Range = 13 km = 13000 m Initial speed = 424 m/sec

Q: SITUATION 1

A: The velocity of B , = 2.875 m/s upwards. Please find the working below:

Q: What will be acceleration of a body of mass 7 kg if a force of 220N is applied to if ?

A: Given data :                    Mass  of  body   =   m                           Force     =     F  ...

Q: is vaporized and accelerated through a 15 KV electric potential before entering a region with a 2.5 ...

A:

Q: body covering the whole 32pi-meter circumference of a circular path for 45 seconds travels at a cons...

A:

Q: O Product of Vectors and Angle between Two Vectors 2.) A = 8i +4j – 2k lb 1.) Ä = 72.4 N, 32° E of N...

A:

Q: While driving along the highway at 40 m/s, you spot a police car 50 m ahead, traveling at a constant...

A:

Q: A motorcycle and 48.5 kg rider accelerate at 2.4 m/s² up a ramp inclined 10° above the horizontal. (...

A: