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A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 156 cm and makes an angle of 126° with the positive x axis. The resultant displacement has a magnitude of 151 cm and is directed at an angle of 36.0° to the positive x axis. Find the magnitude and direction of the second displacement.
A plastic cylinder of length 38 cm its ends ground to convex (from the rod outward) spherical surfaces, each having radius of curvature 19 cm, How far will the image of the object lie from the right end
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 183 MeV, How many nuclei are in the beam
An inductor L = 0.0470 H and a 35.0 ? resistor are connected in series to a 3.70 volt battery and a switch. What is the potential difference across the resistor immediately after the switch is closed
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 53.90 diopters, How far is the blackboard from her eyes
A child sits on the edge of a spinning merry-go-round that has a radius of 2.9 m. What is the child's acceleration
A helicopter is rising at 4.60 m/s when a bag of its cargo is dropped. The bag falls for 2.50 s. (suppose that the positive direction is upward.)
A sodium-vapor lamp has power output of 10.0 W. Using 589.3 nm as the average wavelength of this source, calculate the number of photons emitted per second
A simple pendulum is constructed from a mass of 2 kg and a massless string of length 3.5 m. What is the period of the pendulum
A current-carrying wire of length 0.5m is at the Equator. Assuming that the magnetic field of the Earth has magnitude of 5 x 10^-5 T, what current is required to allow the wire to be suspended
Bead A has a mass of 14g and a charge of -4.5nC . Bead Bhas a mass of 28g and a charge of -11.8nC. What maximum speed is achieved by each bead
A potential difference of 14.0 V is applied across a wire of cross-sectional area 5.01 mm2 and length 745 km. What type of wire is this
Find the flux of the Earth's magnetic field of magnitude 5x10^-5, through a square loop of area 10cm^2 for the following
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