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Using a rope, a child holds a sled at rest on a 30.0 degree inclined frictionless, snow-covered hill.
A) if the sled weighs 77.0 N, find the force exerted by the rope.
B) find the value of the normal force.
Calculate the adiabatic flame temperature attained when methane at 298k, is combusted (a) with oxygen in the molar ratio air/CH4 = 9.524. Assume that CO2 and H2O are the products of the combustion. The adiabatic flame temperature is that temperature ..
a nearsighted patients far point is 0.612 m from her eyes. she is able to see distant objects in focus when wearing
A projectile that is fired from a gun has an initialvelocity of 90.0 km/h at an angle of 60.0o above thehorizontal. When the projectile is at the top of its trajectory, aninternal explosion causes it to separate into two fragments ofequal mass.
A wire with a length of 1.6 m and a mass of 0.62 kg is in a region of space with a magnetic field of 0.71 T. What is the minimum current needed to levitate the wire
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), Determine the radius of the path
A 76 kg sprinter starts a race with an acceleration of 5.8 m/s2, What is the magnitude of the net external force on him in N
A circular solenoid contains 100 turns of wire and carries a current of 2 amps. Its radius is 1 cm and its length is 10 cm. Calculate the magnetic flux through one turn of the wire
An ice sheet with area 10:0 m x 10:0 m and uniform thickness of 1.20 m floats in the Arctic Ocean. Assume that the density of ice is 917 kg/m3, Find the buoyant force acting on the ice sheet
A 73.0 kg base runner begins his slide into second base when he is moving at a speed of 4.4 m/s. How much mechanical energy is lost due to friction acting on the runner
The left ventricle of the heart accelerates blood from rest to avelocity of +24cm/s. If the displacement of the blood during theacceleration is +1.6 cm, determine its acceleration (incm/s2). How much time does blood take to reach its final velocity?
The mass of the sun is 1.99 X 10^30 kg and its distance from Earth is 150 million kilometers (150 x 10^9 meters). What is the gravitational force between the sun and Earth?
A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). What is the speed at which the satellite travels
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