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Question: A baseball of mass m1 = 0.41 kg is thrown at another ball hanging from the ceiling by a length of string L = 1.75 m. The second ball m2 = 0.79 kg is initially at rest while the baseball has an initial horizontal velocity of V1 = 3.5 m/s. After the collision the baseball falls straight down (no horizontal velocity.) What is the angle that the string makes with the vertical at the highest point of travel in degrees?
A thin flashlight beam traveling in air strikes a glass plate at an angle of 52 degree with the plane of the surface of the plate. find what angle will the beam make with the normal in the glass
In a constant-volume process, 201 J of energy is transferred by heat to 0.97 mol of an ideal monatomic gas initially at 306 K. Find the increase in internal energy of the gas
An engine goes through the following cycle with 2.20 sample of a diatomic gas. I. an isothermas expansion from point a to point b. II. a constant pressure compression from point b to point c. III.
mary beth uses a torque feeler that consists of a meter stick held at the 0 cm end with a weight danglig from various positions along the stick. how much more torque is exerted when it is hung from the 75 cm mark
A convex lens has a focal length of 0.28m. Where on the lens axis should an object be placed in order to get a real, magnified image with a magnification of 2.0
A sphere of radius 20.0cm and mass 1.80 kg starts from rest and rolls without slippingdown a 30.0º incline that is 10.0 m long. Calculate its translational and rotational speeds when it reaches the bottom
The two plates of a capacitor hold +2350 µC and -2350 µC of charge, correspondingly, when the potential dissimilarity is 910 V. What is the capacitance? Answer in µF
A record was set for stair climbing when a man ran up the 2000 steps of the Empire State Building in 13 minutes and 10 seconds. what was his average power output during the climb
A periodic force equal to f(t) = cos ψt + sin ψt is impressed on the system starting at t = 0. In the absence of a damping force, for what value of ψ will the system be in a state of pure resonance?
Find the internal forces Trod and Tspring Consider the equilibrium of point A*. Follow the 3-step procedure of drawing FBD, listing equations.
A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. Calculate the net force on the parachutist
the index of refraction for silicate flint glass is 1.66 for violet light that has a wavelength in air equal to 400 nm
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