Review I Constants Previous Answers A boat of mass 250 kg is coasting, with its engine in neutral, through the water at speed 1.00 m/s Submit when it starts to rain with incredible intensity. The rain is falling vertically, and it accumulates in the boat at the rate of 100 kg/hr . v Correct The boat is subject to an external force, the drag force due to water resistance, and therefore its momentum is not conserved. Part C The drag is proportional to the square of the speed of the boat, in the form Fa = bv² where b= 0.5 N· s² /m². What is the acceleration of the boat just after the rain starts? Take the positive a axis along the direction of motion. Express your answer in meters per second per second.
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- Part A A 22-g bullet traveling 260 m/s penetrates a 1.6 kg block of wood and emerges going 130 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges? Express your answer to two significant figures and include the appropriate units. HÀ Value Units Submit Request Answer Provide Feedback • Previous wsics.com/myct/itemView?assignmentProblemID=167202732&offset=next Co G Search or type URL & 8 9Part A A block of mass 2.55 kg slides down a 30.0° incline which is 3.60 m high. At the bottom, it strikes a block of mass 7.60 kg which is at rest on a horizontal surface. (Assume a smooth transition at the bottom of the incline.) (Figure 1) If the collision is elastic, and friction can be ignored, determine the speed of the block with mass 2.55 kg after the collision. v'm = ΕΠΙ ΑΣΦ Submit Request Answer Part B ? m/s If the collision is elastic, and friction can be ignored, determine the speed of the blockwith mass 7.60 kg after the collision. = 跖 ΑΣΦ Submit Request Answer ་ Part C How far back up the incline the smaller mass will go. ΜΕ ΑΣΦ d = Submit Request Answer ? ? m m/sA force in the +z-direction with magnitude 18.0 N- (0.530 N/m)z is applied to a 6.60 kg box F(x) that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box. O Part A If the box is initially at rest at r = 0, what is its speed after it has traveled 16.0 m ? Express your answer to three significant figures and include the appropriate units. ? HA Value Units Submit Previous Answers Request Answer
- Constants I Periodic Table -27 A proton (mass 1.67 x 10 2kg) is moving at 1.30 -6 x 10m/s directly toward a stationary helium Part A -27 nucleus (mass 6.64 x 10 2kg). After a head-on elastic collision, what is the proton's velocity? Express your answer with the appropriate units. HA Value Units V = Request Answer Submit Part B After a head-on elastic collision, what is the helium's velocity? Express your answer with the appropriate units. ? HA Value UnitsJill threw a dodgeball completely horizontal in x-direction with velocity of +5 m/s and mass of .5 kg. At the same time her friend threw a dodgeball with the same mass in the -x direction and a velocity of -2 m/s. The balls hit each other, and Jill's ball was deflected 30° above the original path, while her friend's deflected 20⁰. below the initial path. a. Ignoring gravity, solve the velocity of each ball after the collision, using a free body diagram. b. If both balls had a magnitude of 3 m/s, how much kinetic energy was "lost" during the collision?..r The mass of single cart is 0.050-kg and the mass of the double cart is 0.100-kg. The initial velocity of the single cart is 0.60 m/s and after collision the single cart bounces back at 0.20 m/s. The double cart was at rest before collision and gained a velocity of 0.40 m/s after collision, Consider a system including the single cart and the double cart Determine the total initial momentum for a system; b. Determine the total final momentum for the system; What is the momentum change for the system? Why the value makes sense? a. с. i = 0 %3D
- A 0.450-kgkg ice puck, moving east with a speed of 5.80 m/sm/s , has a head-on collision with a 0.990-kgkg puck initially at rest. Assume that the collision is perfectly elastic. Part A What is the speed of the 0.450-kgkg puck after the collision? Express your answer to three significant figures and include the appropriate units.n a carbon monoxide (CO) molecule, the distance between the oxygen atom and the carbon atom is 1.13 × 10-10 meters. The mass of an oxygen atom is 16 atomic mass units (amu) and the mass of a carbon atom is 12 amu. How far from the oxygen (O) atom is the center of mass of the molecule, in meters? Justify your answer using your equations and rationale used.A railroad handcar is moving along straight, frictionless tracks with negligible air resistance. In the following cases, the car initially has a total mass (car and contents) of 190 kg and is traveling east with a velocity of magnitude 4.90 m/s. Find the final velocity of the car in each case, assuming that the handcar does not leave the tracks. Part A An object with a mass of 20.0 kg is thrown sideways out of the car with a speed of 2.50 m/s relative to the car's initial velocity. Express your answer with the appropriate units. V = Submit Part B Value V = Request Answer Units Value An object with a mass of 20.0 kg is thrown backward out of the car with a velocity of 4.90 m/s relative to the initial motion of the car. Express your answer with the appropriate units. ? Units east east
- can you please solve both questions they are asking in a piece of paper please. theres also another question : here is What is the magnitude of the larger marble's velocity after the collision?A 6700-kg boxcar traveling at 15 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 5.0 m/s. Part A What is the mass of the second car? Express your answer to two significant figures and include the appropriate units. μΑ ? m2 = Value UnitsPl