A rock is given initial upward velocity of 49 m/sec at ground level. Find the change in height in the last 1.5 seconds of its upward motion.
Until 1883, every city and town in the US kept its own local time. Today, travelers reset their watches only when the time change equals 1.0h. How far, on the average must you travel in degrees of longitude until your watch must be reset by 1.0h? (hint: Earth rotates 360 degrees in about 24 hours ) Gold, which has a mass of
A 1000-kg Volkswagen with speed 30m/sec collides head-on with a large truck of mass 10,000kg and speed 25m/sec. As a result of the collision, the two vehicles lock together. a. Find the magnitude and the direction of the velocity of the vehicles right after the collision. b. Compute the total Kinetic energies before
A wave having frequency 20Hz and wavelength 5m is traveling away from its source. What is the distance traveled by this wave in 15 sec?
A man whirls a stone round his head on the end of a string 2 m long. Can the string be in a horizontal plane ? If the stone has a mass of 200g and the string will break if the tension exceeds 4 Newton, what is the smallest angle the string can make with the horizontal ? What is then the speed of the stone ? Take g = 10m/s^2
A constant force acts on a 2kg mass for 3sec while the velocity changes from 4m/sec to 10m/sec. a. Find the initial and final momentum of the mass. b. Find the change in momentum and the impulse given to the mass. c. Find the magnitude of the force.
A 30kg girl moving with speed 2m/sec and a 50kg boy moving with speed 1m/sec collide head-on on an ice-skating rink. As a result of the collision, the girl moves at 1m/sec opposite to her initial direction. Find the magnitude and direction of the boy's velocity after the collision.
A 3000kg truck crashes into a wall at 40km/hr and comes to a stop in 0.5 sec. What is the average force on the truck while it comes to a stop?
How long does it take to stop a 3X10-5kg mass moving at 2X104m/sec by applying a stopping force of 12N on this mass?
Submarine A detects sound from sub B. Given the frequency received and knowing that emitted, find the velocity of sub B. Submarine A, with velocity 21 m/sec, receives from directly behind it, the sound with frequency 266 cy/sec, from submarine B which is known to emit sound at 265 cy/sec. The two submarines are 1800 meters
The general form of the equation y(x,t) of a traveling wave is: (1) y= ym sin (k x - w t) in which w is the angular frequency. A certain wave is expressed by: (2) y= 0.15 cos (40 x - 20 t) with distances in meters and times in seconds. a. Obtain the wave speed, wavelength, amplitude, period, and frequency of this wa
See attached file. One end of a taut wire moved up and down with SHM generates a wave moving to the right along the wire. A 'primed' axis system, (x', y'), moving along with the wave, gives the x',y' coordinates of points on the wave as shown in ATTACHMENT #1. The wave's amplitude is ym', its velocity is v, and its wavelengt
Some parameters which all traveling waves have include its wavelength (lambda), period T, wave speed v, amplitude ym, etc. ATTACHMENT #1 is a diagram of a typical wave, a sine curve, with points A, B, etc. identifying various points and lengths of a wave. PART a. On ATTACHMENT #1, in the spaces shown after the parameters listed
SEE ATTACHMENT #1 for diagram showing parameters, and general equations of SHM. Driven by a spring with force constant k, on a horizontal frictionless table, two joined masses, each mass M, is executing SHM between xm and -xm. Known parameter values are: M= 2 kg, k= 64 nt/m, xm= .25 m, PART a. Find the period, and max
A construction worker on a new high-rise building drops a wrench and it falls 78.4 m to the ground. How fast is it moving when it hits, assuming no air resistance? Use g = 9.8 m/s2.
SEE ATTACHMENT #1 for diagram of before and after rearrangement. A framework consists of two thin, uniform bars of mass M= 12 kg, length L= 3 m, and two thin, uniform bars of mass m= 6 kg, length D= 3 m, forming a rectangle of length L width D. It is rotating in space with initial angular velocity Wo= 18 rad/sec. At some ins
See attached file. PART a. A small mass m is attached to one end of a rod of negligible mass. The other end of the rod is fixed so that the mass can move in a circle of radius R. A force F is applied tangent to the circle, giving the mass angular acceleration 'alpha'. SEE ATTACHMENT #1 for a diagram showing parameters. App
Bernoulli's equation determines ejection velocity of liquid from a tank. Motion equations find x,y coordinates of impact of the liquid. A large tank contains non-viscous liquid whose depth is H. A bullet punches a small hole of radius r in the vertical side of the tank at a point which is distance h below the liquid surface.
See attachment #1 for diagram. Bernoulli's equation and equation of continuity in liquid flow from large to smaller pipe A sprinkler supply pipe pumps water upward from a larger pipe, diameter d2=.28 m, to a smaller pipe, diameter d1= .12 m. The velocity of the water through the smaller pipe is v1= 6 m/sec. a. find the
The end of a string is moved up and down with a frequency of 125 vibrations/sec. If the waves produced have a velocity of 40m/sec, what is their wavelength?
Please provide me with a complete/comprehensive solution in word or in text to the attached problems.
A longitudinal wave with a frequency of 3.0 Hz takes 1.7 seconds to travel the length of a 2.5m Slinky. Determine the wavelength of the wave.
Suppose that 15 boxcars on a freight train pass by in a time of 12.0 seconds and each has a length of 14.0 m. (a) What is the frequency at which each boxcar passes? (b) What is the speed of the train?
Speakers A and B are vibrating in phase. They are directly facing each other, are 7.80 m apart, and are eack playing a 73.0-Hz tone. The speed of sound is 343 m/s. On the line between the speakers there are three points where constructive interference occurs. What are the distance of these three points from speaker A?
A marble and a cube are placed at the top of a ramp. Starting from rest at the same height, the marble rolls and the cube slides (no kinetic friction) down the ramp. Find the ratio of the center-of-mass speed of the cube to the center-of-mass speed of the marble at the bottom of the ramp.
A simple way to measure the speed of a bullet is with a ballistic pendulum. This consists of a wooden block mass, M, into which the bullet mass, m, is shot. The block is suspended from cables of length, l, and the impact of the bullet causes it to swing through a maximum angle, A. The initial speed of the bullet is v. a) How
1)a.A grind stone of 0.1m thick,1m of diameter and a relative density of 2.53 find-moment of inertia+ radius of gyration. b)A gun is fired at a target 12km away at an angle of 35deg and hits target.How long is the projectile in the air and what's it's velocity? need complete step by step answer,thanks..
The position of a particle moving on an x axis is given by: x=7.8 + 9.2t - 2.1t^3 with x in meters and t in seconds. What is its velocity at t=3.5s? Is velocity constant or changing?
Relative Velocity Problem Consider a boat on the West bank of a river of width D=1664 meters to be at the origin of an x,y axis system with the 0° direction East along the +x axis. The river water runs South with velocity vector W= 3.9 m/sec at 270°. At coordinates (1200, -390) is a dock on an island. At coordinates (16
A 2100.00 kg car moving at 27.50 m/s hits an initially uncompressed horizontal spring with spring constant of 1.60à?10^6 N/m. What is the maximum compression of the spring? (Neglect the mass of the spring)