. A rod falls from the ceiling of a moving train car that is accelerating northward at a rate of 2.50 m/s2 . (a) What is the acceleration of the rod relative to the train car? (b) What is the acceleration of the rod relative to the Earth? (c) Describe the trajectory of the rod as seen by an observer fixed on the Earth.

Q: ng from the middle of a clothesline. The rope is attached at equal heights 24 units apart and the en...

A: We know that here we have given that the rock hanging on the middle of the clothesline and the entre...

Q: A bus travels for 2 hrs at 60 kph and another 3 hrs at 70 kph. What is its average speed?

A: first interval : time = 2 hours speed = 60 km per hour second interval : time = 3 hours speed = 70 k...

Q: rain rolls to a stop along a horizontal track without the conductor applying the brakes. What answer...

A: The answer is below

Q: A harmonic oscllator consists of a spring-mass system. The mass is 1.3 kg and the spring constant is...

A: Given that:- K=18 N/mm=1.3 kgω=?T=?   Since, ω=Kmω=181.3ω=3.721 rad/sec   Also, time period (T) is g...

Q: The Slingshot is a ride for two people. It consists of a single passenger cage, two towers, and two ...

A:

Q: 6-3. The tip of a one-link robot is located at 0 = -n/4 rad at time t = 0 s as shown in Fig. P6.3. T...

A:

Q: The kinetic energy of a 4.0 kg object moving at 3.0 m/s is: 1. 12 J *2. 18 J 3. 36 J 4. 48 J

A:

Q: Problem 4: A disk of radius R = 0.5 m has a moment of Inertia I = 0.025 kg m and it is rotating at 1...

A: Radius of disk (R) = 0.5 m Moment of inertia (I) of disk = 0.025 kg-m2Initial angular velocity (ω) =...

Q: ira car accelerates from rest at 2 meters per second per second, its speed 3 seconds later will be o...

A: Given data : Initial velocity=U Acceleration=a Time=t   To find : Speed after 3 sec

Q: Figure 2 shows the field produced by two point charges +q and -q of equal magnitude but opposite sig...

A: This question is based on Gauss law. The gauss law states that the net electric flux through a close...

Q: 8. A motorbike show rider drives off the edge of a cliff. Just at the edge,his velocity is horizonta...

A:

Q: How many significant figures are there in each of the following? (a) 83.4 ± 0.9 (b) 3.4130 x 109 (c)...

A:

Q: if e is the electron charge, which of the following charges is not possible in nature?

A: Answer is d(e/6).

Q: to questions 74 through 76 on the information and diagram below. and slides along a frictionless tra...

A:

Q: 8) A stone moves in a circle of radius 60.0 cm and has a centripetal acceleration of 90 m/s2. How lo...

A:

Q: Solve the resultant vector. John was given a mission in South  America:to find the treasure box. Th...

A:

Q: A moving hydrogen atom (rest mass = 939 MeV/c², where c is the speed of light in vacuum) has a kinet...

A:

Q: A new generation ultralight plastic has a density of 0.75 g/cm3 Determine: a) What is the mass of ...

A:

Q: A positive charge of 5µC is placed in an electric field of 50,000 N/C directed in the upward directi...

A:

Q: Consider the circuit configurations below, where two lightbulbs are connected to a single battery in...

A:

Q: An electron is placed in a uniform electric field 26 nN/C directed north created by two horizontal p...

A: GivennElectric fieldE=26 nN/CDistance of seperations=137 fm

Q: 9- At what speed must a ball be thrown upwards to reach a maximum height of 25m?

A: Given data : Acceleration due to gravity=g Maximum height=h   Required : Speed

Q: • An engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a velo...

A: Given  Velocity of water, V = 2 m/s  Mass per unit length = M/L = 100 kg /m  The power of engine is ...

Q: A vector has an x-component of -29.5 units and a y-component of 25.0 units. Find the magnitude and d...

A: Given that                x- component of the vector = -29.5 unit and         y - component of the v...

Q: A semi is traveling down the highway at a velocity of v = 27.5 m/s. The driver observes a wreck ahea...

A: Given:- u= Initial velocity of truck= 27.5 m/s μk= coefficient of kinetic friction= 0.16 m= mass of ...

Q: A solid body of a certain material has a mass of 700 g and a volume of 2.587 cubic centimeters. Calc...

A:

Q: a car accelerates from rest at 2 meters per second per second, its speed 3 seconds later will be ot ...

A:

Q: ON A CERTAIN DESERT LAND, A HORSE IS RUNNING AT A SPEED OF 60 MPH. HOW FAR BACK OF A STOP WAGON SHOU...

A: Given that:- Speed of horse=60mph

Q: A Jét plane has a takeoff speed of Vto 72 m/s and can move along the runway at an average accelerati...

A: Given that:- u=0 m/sv=72 m/sa=1.7 m/s2L=1.4 km

Q: Suppose you could chose any one moon in our solar system to visit. Which would you pick and why? Moo...

A: If I had to choose any one moon to visit in the Solar system, I would prefer to visit Lo, which is t...

Q: A ship steams at a constant velocity of 30 km/h. (a) How far does it travel in a day? (h) How long d...

A: According to guidelines we need to solve only first question kindly repost other question in the nex...

Q: A 1470-kg car is being driven up a 5.76 ° hill. The frictional force is directed opposite to the mot...

A:

Q: A particle of some unknown rest mass m,, moving at +0.8c ây relative to a stationary laboratory, col...

A: Given, for first body,  mass = mx  ,     velocity = 0.8c for second body,  mass = m0  ,      velocit...

Q: A solid steel sphere of radius 50 cm is heated to 2000 K. If the sphere acts as a perfect radiator, ...

A:

Q: A point charge q = +3.0 mC is surrounded by an imaginary sphere of radius r = 0.20 m centered on th...

A:

Q: 4) A projectile fired from the ground has a velocity i = 9.10 m. Find: (a) the initial velocity; (b)...

A: Given- v→=24.0i^-8.00j ^m/sheight=9.10mAcceleration due to gravity 9.8m/sec2 In projectile motion, i...

Q: I'm your own words why is it important to know the parts of the hand grenade?

A: A hand grenade is an anti-personnel weapon designed and used to clear out enemy fortifications, buil...

Q: The measurements x1 = 10m, x2 = 8m, and x3 = 6m represent the sides of a rectangular parallelepiped ...

A:

Q: rift velocity of the electrons  in a 12-gauge copper wire which has a diameter of 2. 5 mm carrying  ...

A: 1) We know that the atomic mass of the copper is 63.54 g/mol = 63.54 x 10-3 kg/mol The electron den...

Q: Consider the capacitor network. 21.9 µF 44.2 V 1.77 µF 1.4 µF 8.78 µF What is the equivalent capacit...

A:

Q: Angular Acceleration (rad/sec^2) vs. Torque (Nm) Angular Acceleration (rad/sec^2) Angular Accelerati...

A:

Q: A contestant in a winter sports event pulls a 55.0 kg block of ice across a frozen lake with a rope ...

A:

Q: A cannonball is shot with an initial speed of 30.0 m/s and 25.0º angle above horizontal from a heigh...

A:

Q: A 2.0-kilogram cart is initially at rest on a level floor. Determine the kinetic energy of the cart ...

A: Given data:  Mass (m) = 2.0 kg Initial velocity (Vi) = 0 m/s Force (F) = 8.0 N Displacement (d) = 1....

Q: 60. A cart of mass m traveling at speed v has energy KE. If the mass of the cart is doubled and the ...

A: The given data   The mass of the cart  is m The velocity is v  

Q: Part C Compact fluorescent bulbs are much more efficient at producing light than are ordinary incand...

A:

Q: solve using both polygon method and component method. a worm crawls 32 cm in a northerly direction,...

A:

Q: Problem 6: Consider a ball of mass m attached to a string of length L, which is being spun around in...

A: Given that:- Mass of the ball=m kg  Length of the string=L meter  

Q: Determine equivalent resistance

A: Given data : Resistance=R1 Resistance=R2 Resistance=R3   Required : Equivalent resistance

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.