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(a) What will be the object's acceleration if it is pulled by six rubber bands?
m/s2
(b) What will be the acceleration of three of these objects glued together if they are pulled by two rubber bands?
A two mmeter high tank is full of water. A hole appears at its middle. What is speed of efflux
The average density of the planet Pluto is 2357 kg/m3. The acceleration of gravity on its surface is 0.76 m/s2. Calculate the average radius of Pluto
A speed skater moving across frictionless ice at 8.4 m/ s hits a 5.2 m -wide patch of rough ice. She slows steadily, after that continues on at 6.3 m/s.
A screen is placed 1.30 {rm m} behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.70 {rm cm} wide-that is, two first-order diffraction minima are separated by 1.70 {rm cm}.
A luminous point is moving at speed Vo toward a spherical mirror of radius R along its axis. What is the speed at which the image is moving
A monoenergetic beam of neutrons, cp = 4 X 1 0 10 neutrons/cm2-sec, impinges on a target 1 cm2 in area and 0. 1 cm thick. How many neutron interactions per second occur in the target
A boat moves through the water of a river at 10-m/s relative to the water, regardless of the boat's direction. If the water in the river is flowing at 1.6-m/s.
A barbell spins around a pivot at its center at A. The barbell consists of two small balls, each with mass 450 grams (0.45 kg), at the ends of a very low mass rod of length d = 35 cm, calculate the total kinetic energy of the barbell
two long parallel wires separated by 50 cm both carry currents of 4.0 A in the same vertically up direction. Find the magnetic field midway between the wires
Steam enters an isentropic turbine at an initial condition of 3.5 MPa and 400°C and leaves at a pressure of 175 kPa. Determine the work produced by this turbine
It takes a student t = 5.2 s to push a block m = 6 kg at a constant velocity over a distance of d = 4.6 m. How much power was applied to the block in Watts
A guitar string is 90.0 cm long and has a mass of 3.27g . From the bridge to the support post (=?) is 60.0 cm and the string is under a tension of 514 N
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