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Q. A boat's speed in still water is 1.95 m/s . The boat is to travel directly across a river whose current has speed 1 m/s . Determine the speed of the boat with respect to the shore.
Q. What tension in Newtons must a 50 cm length of string support in order to whirl an attached 2000 g stone in a circular path at 5 m/s?
A 1.78 m long air column is open at both ends. The frequency of a certain harmonic is 828 Hz, and the frequency of the next-higher harmonic is 920 Hz. find out the speed of sound in the air column.
A plate of glass with parallel faces having a refractive index of 1.57 is resting on the surface of water in tank. A ray of light coming from above in air makes an angle of incidence 34.5 degrees with normal to the top surface of the glass.
small metal bead, labeled A, has a charge of 26 . It is touched to metal bead B, initially neutral, then that the two beads share the 26 charge, but not required equally. When the two beads are then placed 5.0 apart, force between them is 5.4×10-..
Find out vertical and horizontal components of the pendulum
What is an acceleration of the particle at the instant
A wheel rotating about a fixed axis through its center has a constant angular acceleration of 4 rad/s^2. In cerain 4s interval the wheel turns through an angle of 80 rads.
Find out the magnetic field strength
A bullet of mass m = 25 g is fired into a wooden block of mass M = 4.5 kg. The block is attached to a string of length 1.5 m. The bullet is embedded in the block, causing block to then swing.
A cord of length 1.0m is fixed at both ends. Its mass per unit length is 1.2g/m and the tension is 11N. What is the frequency of fundamental oscillation
What will most likely cause arcing at the switch contacts.
What was the power of the motor that kept the wheel rotating at 6.5 rev/hr in spite of friction.
What is the distance between deer a and c
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