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A violinist is tuning her instrument to concert A (having 440 Hz). She plays the note while listening to the electronically produced tone of exactly which frequency and hears a beat of frequency 5.
A metal disk having radius 3 cm and mass 0.8 kg is mounted on the frictionless axis via its center. A light string is wrapped about the edge of the disk and a 1 kg mass is released from rest at a he
The dust particles are attracted towards the planet and some of them would ultimately fall onto its surface. Determine the resultant retarding force on the planet due to the dust cloud.
A railroad car having mass 2.2 x 104 kg moving at 2.50 m/s collides and couples with the two coupled railroad cars, each of the similar mass as the single car and moving in the similar direction at
A window cleaner of 80 kg sits 1.8 meters from the end of a 5 meter long scaffold which is supported at either end by a vertical wire. Suppose the scaffold is a uniform beam having a mass of 40 kg a
The two spacecraft fly away from the Earth, traveling in precisely opposite directions. As evaluated by an observer on Earth, spacecraft A travels at a speed of 0.392 c and spacecraft B travels at a
After a projectile is launched, till just before it lands, certain features of its motion stay constant, while others change. In the list beneath choose the parameters that stay constant for a proje
A ball is thrown at the initial velocity of around 32.2 m/s at angle of 33.5° reaches a maximum height h. Determine with what initial speed must you throw a ball straight upward to reach the sim
A swimming pool of 4.0 m wide is filled to the top. The bottom of the pool becomes fully shaded in the afternoon when the sun is 21 above the horizon. Explain how deep is the pool?
In a shot-put event, an athlete throws the shot with the primary velocity of 12.8 m/s at an angle of around 46.5° from the horizontal. The shot leaves her hand at a height of 1.6 m above the gro
Explain qualitatively what type of Kepelerian orbit you would put yourself into around the Sun so you would arrive at this planet in the shortest time interval.
The moment of inertia for a solid sphere is stated by I = 2/5MR squared and a solid disk is stated by I = 1/2MR squared. When both objects encompass the similar mass and radius and both are released
A mass of 2 kg (M1) is sliding (no rolling) across the frictionless surface having velocity v1. A ring of 2 kg (M2) is rolling across the surface with velocity v2. Both masses encompass the similar
The magnet's magnetization vector is primarily at an angle of 30° with the direction of the external field. Determine the magnetic torque applied on the magnet.
A mass of 2 kg is joined to an un-stretched spring having spring constant of around 100 N/m. It is then released and starts to fall. i) Determine how much will the spring stretch?
When this group is divided in half, compute the charge of each half. As well compute the magnitude of electric force which would result when the two groups of charges are position 1.00 km apart.
The position of particle coordinates (x, y) are (2.0 m, 2.0 m) at t = 0, (7.0 m, 7.0 m) at t = 2.0 s, and (13.0 m, 10.0 m) at t = 5.0 s. Determine the magnitude of vav from t = 0 to t = 2.0 s.
If he couldn't perspire or else cool his body, determine by how much his body temperature rise would throughout this exercise?
On a day when the wind is blowing toward the south at 1.2 m/s a runner jogs west at 1.6 m/s. Determine the velocity (speed and direction) of the air relative to the runner?
A magnetic field consists of a magnitude of 12 T. Find out the magnitude of an electric field that stores the similar energy per unit volume as this magnetic field?
This change leads to the appearance of around 6.0 mA current in a nearby secondary coil. The secondary coil is part of a circuit in which the resistance is around 12 Ω. The mutual inductance a
A box of 5.00 kg slides 3.00 m across the floor before coming to rest. Find out the coefficient of kinetic friction among the floor and the box when the box had an initial speed of around 3.00 m/s?
A straight rod comprises of a 1.2 cm long piece of aluminum joined to a 2.0 cm long piece of steel. Determine by how much will the length of this rod change when its temperature is raised from 20 C to
The critical angle for a special kind of glass in air is around 40.8 degrees. The index of refraction for water is around 1.33. Find out the critical angle when the glass is immersed in water?
A jewelry maker has asked your glass studio to generate a sheet of dichroic glass which will appear red for transmitted light and blue for reflected light. You decide that ‘red light’ mu