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One is traveling 60 miles an hour and the the other is traveling 50 miles an hour. After how long will they meet?
Assume the wire lies along an x axis with the moving end at the origin. The equation giving displacement y, in meters.
A block of mass m = 2.32 kg slides down an alpha = 29.2° incline which is h = 3.56 m high. At the bottom, it strikes a block of mass M = 7.06 kg
Use Bernolli's equation to derive the following expression for the pressure P in the horizontal tube at the top of the vertical tube:
On a frictionless table, a spring has one end fixed and the other attached to block M. Block m, is in contact but not attached to M.
A mass M attached to an ideal spring with force constant k executes SHM on a horizontal frictionless table. It has a total energy of 1.0 Joule and amplitude .
If the pulsar emits 10 pulses per second in its own frame of reference, at what rate are the pulses emitted in the rocket's frame of reference?
An alpha particle (the nucleus of a helium atom) has a mass of 6.64x10-27kg and a charge of +2e. What are the (a)magnitude and (b)direction
Specifically, Train A, traveling 70 miles per hour (mph), leaves Westford heading toward Eastford, 260 miles away.
Derive an expression for the buoyant force on a spherical balloon, submerged in water, as a function of the depth below the surface
A student throws rocks from the roof of a building. All of the rocks are thrown with the same initial speed v_0 and from the same initial height y_0
As he rises up, he takes a trained monkey of mass m off a perch at a height "h" above the trampoline. What is the maximum height attained by the pair?
A cylinder with moment of inertia I about its center of mass, mass m, and radius r has a string wrapped around it which is tied to the ceiling.
You launch a small mass m into a large mass M, and it swings up a height h where the two masses stick together.
The nucleus of the polonium isotope 214Po (mass 214 u) is radioactive and decays by emitting an alpha particle (a helium nucleus with mass 4 u)
The period of a stone swung in a horizontal circle on a 2.00-m radius is 1.00 s.What is its radial acceleration in m/s^2
A compass needle in a uniform magnetic field of 0.30 T experiences a torque of 0.050 N * m when it points in a direction 45 degrees away from the direction
An object is thrown horizontally from the top of a building at a height of 32.5 m above the ground, it hits the ground 65m from the base of the building.
A 14.0 box slides 4.0 m down the frictionless ramp shown in the figure, then collides with a spring whose spring constant is 180 .
A spaceship of mass 2.3*10^6 kg is cruising at a speed of 4.4*10^6 m/s when the antimatter reactor fails, blowing the ship into three pieces.
What initial angular velocity of the flywheel was needed to store the amount of energy calculated in part b)?
A uniform board of mass m and length L is pivoted on one end and is supported in the horizontal position by a rope attached to the other end.
A transverse traveling wave on a cord is represented by D = 0.48 sin (5.6x +84t) where D and x are in meters and t in seconds.
A welded railway line, of length 15 km, is laid without expansion joints in a desert where the night and day temperatures differ by 50 K.
If she aims her body directly across a 150 m wide river whose current is 0.55 m/s, how far downstream.