A person with compromised pinch strength in his fingers can exert a force of only 6.2 N to either side of a pinch-held object, such as the book shown in (Figure 1).
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- A 69-kg fisherman in a 117-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 4.7 m/s as in the figure below. Neglecting water resistance, and assuming the boat is at rest before the package is thrown, find the velocity of the boat after the package is thrown. magnitude m/s direction ---Select--- toward the right toward the left upwards downwardsMuskox: In the arctic, male muskoxen compete for the attention of females by butting heads. On a cold day (-16.3 degree F), a young bull spies an older bull 13.9 m away and charges! The two meet in a head-on collision and come to a complete stop. The young bull has a mass of 681 kg and was running at a speed of 9.5 m/s. The older bull has a mass of 654 kg. The collision takes place on an icy patch, so you can ignore friction. (a) What was the speed of the older bull? (b) How many joules of energy were "lost" in this collision?A 33.7-g rifle bullet traveling 205. m/s buries itself in a 2.97-kg pendulum hanging on a 2.67-m-long string, which makes the pendulum swing upward in an arc. Determine how high (in m) the pendulum swings above its original position.
- A 80-kg fisherman in a 133-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of v; = 4.0 m/s as in the figure below. Neglecting water resistance, and assuming the boat is at rest before the package is thrown, find the velocity of the boat after the package is thrown. magnitude m/s direction ---Select--- mJames decides to use a ball tied to stiff rod to take out the Road Runner. He first needs to test this idea out on a small scale. A steel ball of mass 0.500 kg is fastened to a cord that is 70.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal (see figure below). At the bottom of its path, the ball strikes a 2.50 kg steel block initially at rest on a frictionless surface. The collision is elastic. a) Find speed of the ball just before impact. b) Find the speed of the block just after impact.Pregunta 5 Sin responder aún Puntúa como 1.00 P Marcar pregunta Página anterior Tiempo restante 1:00:28 Jerome lanza una pelota de béisbol de masa 0.300 kg. La pelota llega al "home plate" con una velocidad de 40.0 m/s y es bateada directamente a Jerome con una velocidad de retorno de 52.0 m/s. ¿Cuál es la magnitud del cambio en el impulso de la pelota? O a. 12.0 kg-m/s O b. 15.6 kg-m/s. O c. 27.6 kg-m/s O d. 3.60 kg-m/s Siguiente página
- Prof. P's dwarf lime tree is doing well this year and provides those lime slices for his refreshing online lecture glass of water. One of those limes with a mass of 45.2 grams falls vertically from the tree at a height of 1.3 meters and elastically bounces straight up off the greenhouse floor. If that poor lime was in contact with the floor for 0.11 seconds, what was the force on the lime from the floor in Newtons? (assume up is positive) Prof. P. has experimentally determined (because he does that sort of stuff) that a 5N force will bruise a lime and make it nasty for his drink - is this lime OK?A 0.430-kg blue bead slides on a frictionless, curved wire, starting from rest at point O in the figure below, where h = 1.50 m. At point O, the blue bead collides elastically with a 0.640-kg green bead at rest. Find the maximum height the green bead rises as it moves up the wire.A 78-kg fisherman in a 116-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 4.4 m/s as in the figure below. Neglecting water resistance, and assuming the boat is at rest before the package is thrown, find the velocity of the boat after the package is thrown. magnitude m/s direction ---Select--- toward the right toward the left upwards downwards