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A horse draws a sled horizontally on snow at constant speed. The horse can produce a power of 1.095 hp. The coefficient of friction between the sled and the snow is 0.115, and the mass of the sled, including the load, is 195.8 kg. What is the speed with which the sled moves across the snow?
A child throws a snowball with a horizontal velocity of 18m/s directly toward a tree, from a distance of 9m and a height above the ground of 1.5m.
Consider two identical particles of spin 1/2 that are confined in a cubical box of side L. Find the energy and wave function of this system
Illustratr what is the amplitude of the oscillations? What were the (b) position and (c) velocity of the block at t = 0 s?
Calculate the energy of the electron in the ground state of triple ionized beryllium, which has an atomic number Z = 4
The highest string on a guitar has a vibrating length of 60 cm and a vibrating mass of 0.9 g. What is the wavelength of the waves on the string
An extension cord made of two wires of diameter 0.129cm (no. 16 copper wire) and of length 2.2m is connected to an electric heater which draws 17.0 A on a 120V- line, How much power is dissipated in the cord
A hole of radius r has been drilled in a flat, circular plate of radius R. Find the moment of inertia for rotation about an axis through the centre of the plate
A cubic container is at rest on a rough horizontal warehouse floor. determine the minimum horizontal force that must be applied to the top of the container to cause tipping
Two point particles with masses m and 4m are placed along the x-axis at x = - a, Calculate the gravitational field and gravitational potential at x = 0
A person who weighs 616 N is riding a 108-N mountain bike. find the area of contact between each tire and the ground
The femur is a bone in the leg whose minimum cross-sectional area is about 3.4 x 10-4 m2. Find the maximum stress that this bone can withstand
An airplane flies due west at a velocity of 645 kilometres per hour (km/h). The wind blows from the north at a velocity of 125 kilometres per hour (km/h). Find the plane resultant velocity?
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