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A box of ant aunts m1 = 1.65kg and a box of ant uncles m2 = 3.30kg, slide down an inclined plane while attached by a massless rod parallel to the plane. The angle of the incline is zeta = 30 degree. The cefficient of the kinetic friction between the aunt box is u1 = 0.226, u2 = 0.113 for the uncle box. Calculate the acceleration of the boxes and the tension in the rod.
A 3-m2 hot black surface at 80°C is losing heat to the surrounding air at 25°C by convection with a convection heat transfer coefficient of 12 W/m2.°C, Determine the total rate of heat loss from the surface
Listed below are the forces that were applied to the cart in these three runs. Use Newton's second law to estimate the mass of the cart in kg from this set of data
A 20.0kg crate slides down a 29° incline at constant speed. What is the force of friction between the crate and incline
Three balls with masses of 6 g at (1,9), 1 g at (7,6), and 7 g at (5,1), respectively, are connected by massless rods. What is the acceleration of the center of mass
An airplane is flying in a horizontal circle at a speed of 133.3 m/s. Banked for this turn, What is the radius of the circle in which the plane is flying
a man walks westward on ship with a speed of 4km/hr. the ships propeller drives it 15km/hr south. what is the actual speed of the man relative to earth
What is height of the cliff
The drag force on an object depends on the dimensionless drag coefficient, the density of air, the object velocity, and the frontal area of the object. By only considering units obtain a relation for the drag force
A cable is used to raise a 29kg urn from an underwater archeological site. There is a 21 N drag force from the water as the urn is raised at a constant speed.
A wrench is placed at 30 cm in front of a diverging lens with a focal length of magnitude 10 cm. What is the magnification of the wrench
When are the displacement, velocity, and acceleration equal to zero for the motion of a mass on a spring? A. at maximum displacement B. at minimum displacement C. at the equilibrium position D. at a displacement of 2x E.at a displacement of 1/3x.
An object is solid throughout. When the object is completely submerged in ethyl alcohol, its apparent weight is 14.9 N. compute the volume of the object
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