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A bright light on the bottom of a swimming pool of 3.50 m deep is emitting rays upwards uniformly in all the directions. Describe why from outside the pool you will merely see a circular area of lig
A ray in air is incident on the glass plate whose index of refraction is around 1.42. The angle of refraction is one-half the angle of reflection. The angle of refraction is nearest to?
Determine the approximate length of the Golden Gate Bridge if it is recognized that the steel in the roadbed expands through 0.507 m if the temperature changes from +2.75 to +34.5 °C.
A mass of 0.30 kg joined to the end of a string swings in a vertical circle (R = 1.4 m). At an instant if theta = 30 degrees, the speed of the mass is around 6.0 m/s. Determine the magnitude of the
i) Where must a man of mass M = 75 Kg sit if the system (plank plus man and woman) is to be balanced? ii) Determine the normal force applied by the pivot on the plank.
A circular coil having 20 turns and radius 5 cm is positioned with its plane oriented at 90 degrees to a magnetic field of 0.1T. The field is now raised at a steady rate, reaching a value of 0.5 T a
A river 24.0 m broad and 4.0 m deep drains a 3000.0 km2 land area in which the average precipitation is 48 cm/year. One-tenth of this rainfall returns to the atmosphere through evaporation; however
An air-track glider is joined to a spring. The glider is pulled to the right and released from rest at 0 s. It then oscillates having a period of 1.50s and an utmost speed of 50.0 cm/s. Determine t
A loop (2m x 1m) having resistance of 4 ohms is pushed to the left at a constant speed of 2 m/s through a 24 N force into a magnetic field. Determine the magnitude of the induced current via t
A big aquarium of height 5.00 m is filled with fresh water to a depth of around 2 m. One wall of the aquarium comprises of thick plastic 8.00 m broad. By how much does the net force on that wall rai
Furthermore, the car consists of a constant velocity; therefore this counter torque balances the applied torque. Find out the magnitude of the static friction force?
You soon discover that you can provide the spider the maximum amplitude on his little bungee cord if you tap precisely once every second. Determine the spring constant of the silk thread?
A spring having spring constant 29.5 N/m suspends from the ceiling. A ball is joined to the spring and allowed to come to rest. It is then pulled down 6.1 cm and released. When the ball makes 40 osc
Astronauts on the first trip to Mars take all along a pendulum that consists of a period on earth of 1.69 s. The period on the other planet turns out to be 3.62 s. Determine the free-fall accelerat
The acceleration due to gravity on the moon is around 1.63 m/s2. Find out the length of a pendulum whose period on the moon matches the period of a 2.13 m long pendulum on the earth?
ck of 1.32 kg is joined to a spring having spring constant 29 N/m. While the block is sitting at rest, a student strikes it with a hammer and nearly instantaneously gives it a speed of 51 cm/s. Wha
An object having weight 8526 N suspends at an angle of 5.0° when the crane’s trolley at point P moves to the right with constant acceleration. Compute the acceleration of the trolley and l
When Unpolarized light is incident on the polarizer-analyzer pair, 39% of the original light intensity passes the analyzer. Suppose all the angles to be precise i) Find the angle between the transmi
A guitar string of 80.0 cm of mass 1.50 g is positioned near a tube open at one end and as well 80.0 cm long. What must be the tension in the string so its fourth harmonic consists of the same frequ
A brother and sister attempt to communicate having a string tied among the two tin cans. When the string is l = 9.2m long, consists of a mass of 50 g, and is pulled taut with a tension of 8.6 N. i)
A bullet 2.20 embeds itself in a 1.60 block, which is joined to a spring of force constant 740. i) When the maximum compression of the spring is 5.40, determine the initial speed of the bullet.
A laser beam in air is incident on the liquid at an angle of around 38.0 degrees with respect to the normal. The angle of the laser beam in the liquid is 27.0 degrees. Find out the liquid's index of
Determine how fast, in rpm, would a 150 g, 59 cm-diameter beach ball encompass to spin to encompass an angular momentum of 0.10 kg*m^2/s?
A beam of photons having energy for each photon equivalent to 24.8 keV is scattered through electrons primarily at rest. A photon in the beam is scattered in a direction which forms an angle of 30
Can there be other point regarding which the torque caused by this force on this particle will be in the opposite direction and half as large in magnitude? Find out the position vector of one such p