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A centrifuge in a medical laboratory rotates at an angularspeed of 3600 rev/min. When switched off, it rotates through50.0 revolutions beofre coming to rest. Find the constant angular accleration of the centrifuge.
A parallel-plate capacitor has an area of 5.15 cm2, and the plates are separated by 1.05 mm with air between them. It stores a charge of 337pC. What is the potential difference across plates of the capacitor.
A spherical metallic Christmas tree ornament has a diameter of 6.41 cm. If Saint Nicholas is by the fireplace, 1.37 m away, where will he see his reflection in the ornament
Two parallel wires are 100m long and 10cm apart and carry opposite chargse of 100 micro couloumbs, what is the electrical force between the wires
An electric dipole of dipole moment 4.5 x 10-9 C·m is in a 250 N/C electric field, what is the potential energy
A diffraction grating has 2604 lines per centimeter, and it produces a principal maximum at θ = 30.0 °. What are the wavelengths of the incident light that could have produced this maximum
a spinning disc rotating at 130 rev/min slows and stops 31 s later. how many revolutions did the disc make during this time
A particle with a charge of +8.4 µC and a speed of 45 m/s enters a uniform magnetic field whose magnitude is 0.32 T. find the magnitude and direction of the magnetic force on the particle
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe\'s diameter is 54.7 cm and the flow speed of the petroleum is 13.9 m/s. what is the pipe\'s diameter at the refinery
In a heart pacemaker, a pulse is delivered to the heart 81 times per minute. The capacitor that controls this pulsing rate discharges through a resistance of 1.8 x 106. One pulse is delivered every time the fully charged capacitor loses 60.5% of its ..
A 2 meter length of steel changes length by 2.4 mm during the course of a day. what is the change in temperature of the steel
A uniformly charged conducting sphere of 1.6 m diameter has a surface charge density of 8.4 µC/m2. Find the net charge on the sphere
In the Cavendish balance apparatus, suppose that m1=1.00 kg, m2= 20.0 kg, and the rod connecting each of the pairs of masses is 28.0cm long. find the magnitude of the net force on one of the small masses
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