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Determine how long would it take a radio message to travel from Earth to the astronaut on the Moon when the astronaut is 376,300 km away? Employ the approximate speed of light as 3.00 x 108 m/s.
A radio station broadcasts at 600.0 kHz. The radio wave consists of a wavelength of around 0.500 km (that is, 0.31 miles). Find out the approximate speed of the wave. Represent all work.
Suppose g = 9.808 m/s^2 unless stated or else. Employ MKS units unless stated or else. Determine the wavelength of a wave having a 30.0 m/s velocity and a 120.0 Hz frequency.
As you walk with the constant speed of 1.95 m/s in a direction 14.6 of north of east, determine how much time does it take to change your displacement through 15 m east?
A current of 4.7 A is set up in a circuit for 8.1 min through a rechargeable battery having a 9.0 V emf. Determine by how much is the chemical energy of the battery decreased?
A mass-less spring of k = 6.45N/m consists of a mass M = 0.300 kg on the end of the spring. The mass is pulled down 0.0500 m and liberated. Determine the period T of the oscillation? Determine the p
The solenoid is to be made from copper wire having a diameter of 0.500 mm. (i) When the radius of the solenoid is to be 1.00 cm, find out the number of turns of wire required.
A sting is vibrating at a frequency of around 5.00Hz and the distance among the two successive nodes is 0.250m. Determine the speed of the waves on the string?
A long solenoid which consists of 990 turns uniformly distributed over the length of 0.420 m generates a magnetic field of magnitude 1.00 x 10-4 T at its center. Determine what current is needed in t
The resolution of the eye is eventually limited through the pupil diameter. Determine the smallest diameter spot the eye can generate on the retina when the pupil diameter is 2.58 mm?
A beam of un-polarized light of intensity having 39.0 W/m2 passes via a polarizing sheet. Determine the electric field amplitude of the transmitted beam?
(i) Determine the radiation pressure which a 250 W light bulb emitting light having an efficiency of 15% applies on a small matte-black surface at a distance of 0.250 m? (ii) Determine the pressure
Determine the average net energy density in electromagnetic radiation which consists of an intensity of 515 W/m2?
Explain that for an isolated rigid body that possesses an axis of symmetry, and rotates around one of its principle axes, the motion is just stable to small perturbations when the principle axis is
In a mass spectrometer, a singly ionized ion of 24Mg consists of a mass equivalent to 3.983 x 10-26 kg and is accelerated via a 3.00 kV potential difference. It then enters an area where it is defle
There is a uniform magnetic field extending over the whole table having a magnitude of 4.35 T and directed to the north and downward, forming an angle of 25.8° with the horizontal. Determine the
A block of mass of 4.0 kg rests on the horizontal surface. Determine what horizontal force is needed to accelerate to 5.0 m/s^2 when (i) there is no friction and (ii) when the coefficient of kinetic
A uniform beam of 1220 N is joined to a vertical wall at one end and is supported through a cable at the other end. A W = 1850 N crate suspends from the far end of the beam. (i) Compute the magnitud
Determine the minimum value for the coefficient of static friction µ s in such a way that the cylinder rolls without slipping down the incline plane? Represent your answer in terms of M, R, g,
An 83 kg running back moving at a 4.0 m/s forms a perfectly inelastic collision having a 110 kg linebacker who is primarily at rest. Determine the speed of the players just after their collision?
The cord's un-stretched length is around 30.0 m. Supposing that the bungee cord follows Hooke's law when it stretches; determine its spring constant.
Let, consider a motorcycle as it travels close to the bottom of a loop. If it is at the bottom, the normal force on the motor cycle is three times its weight. When the speed of the motorcycle is 20m
A handball of 0.060 kg is thrown straight in the direction of a wall having a speed of 10 m/s. It rebounds straight backward at a speed of 9.2 m/s. (i) Determine what impulse is applied on the wall?
Describe the similarities among the energy stored in the electric field of a charged capacitor and the energy stored in the magnetic field of the current-carrying coil.
An object is positioned 4 cm in front of a +2cm focal length lens. When a second similar lens is now positioned 2 cm behind the first, where will the final image be positioned?