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Explain why the ship does not sink despite the size yet a small stone sinks when in the ocean. Thank you.
An incident ray with an angle of 60 degrees strikes a rectangular glass block. Given that the refractive index of glass if 1.5, calculate the angle of refraction.
The voltage across the terminals of a 9.20 Volt battery is 8.10 Volt when the battery is connected to a 40 ohm load. Evaluate the battery internal resistance
At very fast car races the sound of the engine as a car approaches is much different than when it passes you. How fast would the car need to be going to have the change in frequency be one octave
The intersection is 15 m wide. Her car's maximum deceleration is -5.20 m/s2, whereas it can accelerate from 44km/h to 70km/h in 7.8 s. overlook lengths of her car and her reaction time.
A forces of 16.88 N is applied tangentially to a wheel of radius 0.340 m and gives rise to an angular acceleration of 1.20 rad/s^2
A toy airplane is tied to the ceiling with a string. When the airplane's motor is started, it moves with a constant speed of 1.03m/s in a horizontal circle. If the angle the string makes with the vertical is 27°, and the tension of the string is 1N.
q1. a horizontal uniform bar of mass 2.6 kg and length 3.0 m is hung horizontally on two vertical strings. string 1 is
A school of anchovy meanwhile approaches the shoal from the east with a speed of 0.622 m/s. What is the relative speed of the pelicans as measured by the dolphins?
A 0.250-kg ball is dropped from a height 10.0 cm onto a spring. If the spring constant is 60.0N/m what is the distance will the spring be compressed, how high will the ball go
a vehicle covers 600m on a compass bearing of 47 degrees,then 500m bearing 128 degrees; Determine the resultant displacement of the vehicle
An electron, mass = 9.11 X 10-31kg, is moving in a circular orbit of radius 5 X 10-11m by a frequency of 7.5 X 1015 revolutions per second. What is the speed of the electron? What is the magnitude of the net force acting on the electron?
An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, For this load current, find the power delivered to the customer
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