A compressed spring drives two blocks from rest. They separate and the remaining block executes SHM.

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. The spring, originally unstressed was compressed from 0 to -S. There the spring system was released from rest. See ATTACHMENT for a diagram with parameters and basic physics. Block M= 2.0 kg, blo ...continues

SHM of blocks M and m with m riding on top of M. Find friction coefficient such that block m does not slip.

On a frictionless table a block of mass M=1.75 kg is attached to a spring of negligible mass whose force constant k= 60 nt/m. Riding on top of M but not attached to it, is a block m= .65 kg. The blocks execute SHM with amplitude Xm= .25 m. Find the minimum value of the coefficient of friction, u, between the two blocks, such t ...continues

From a cosine curve, shown with scales, for a mass executing SHM, develop x(t) and also find the total energy.

ATTACHMENT1 shows the graph of x(t) for a mass M= 2.4 kg suspended on a spring of force constant k, executing SHM. a. From information on the graph, develop x(t) with numerical values and units for the constants of the SHM. b. Find the force constant, k, of the spring.

Bernoulli's equation

how do i rearrange (step by step please) bernoulli's equation, P+1/2(density)v^2+(density)gh=constant to eliminate the pressure and make velocity the subject. i need to get to this equation v=(square root of) 2xgh (density a)/(density b)? thanks

bernoulli's equation

An old fashioned perfume atomizer operates by the user squeezing a bulb which sets up a rapid flow of air through a horizontal tube. the reduction in pressure due tothis rapid flow causes perfume to be sucked up a vertical tube from the bottle and then expelled from the horizontal tube along with the air. for simplification, we ...continues

From a traveling wave equation obtain much information about the wave.

One end of a long wire under tension is moved up and down sending a wave along it. Assume the wire lies along an x axis with the moving end at the origin. The equation giving displacement y, in meters, of points on the wave is: (1) y= (.06 m) sin (5 x - 25 t) a. From given constants, calculate the value and units of the quan ...continues

Write y(x,t) for a traveling wave from known amplitude, frequency and wavelength.

A wave traveling on a wire has a frequency f= .8 cy/sec, an amplitude Y= .18 m and a wavelength L= 4.0 m. At a time t= .25 sec, find the x coordinates of all the crests.

A platform in equilibium with torques.

A uniform, level platform whose weight is P= 260 nt is held up by a vertical rope at one end ant a vertical cable at the other end. The length of the platform is L= 4.6 m. A painter whose weight W= 825 nt stands at a distance d=1.4 m from the rope. See ATTACHMENT for diagram of parameters. Find C, the force in the cable.

Heat exchange occurs between three objects. Apply conservation of energy.

An aluminum rod has a mass of 4.5 kg and is initially at room temperature of 23 degrees Celsius. The rod is dropped into an aluminum tank whose mass is 1.22 kg, containing an unknown mass of water. The tank and the water are at 96 degrees Celsius. Heat exchange occurs only between the rod, the tank and the water, all of which e ...continues

Submerged block with forces including buoyant forces, in equilibrium.

A block of plastic whose mass is 25 kg and whose density is 850 kg/m^3 is tied by a corfd to the bottom of a pool of seawater whose density is 1025 kg/m^3. Find the force in the cord.