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A:
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A: Cx,Cy = (-0.57,0.82)Explanation:
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A: The momentum is the product of mass and velocity. P = mv
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Q: i got the answer 2.3566x10^23 but it was not correct
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A: Refer explanationExplanation:
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A: Detailed solution is given below Explanation:
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A: Part B) vm=4.78 m/s PartC) hmax=1.16 mExplanation:If you have any doubt please let me know in…
Q: A basketball hits the hoop with a force of 2.5 lb at an angle of 75 degrees from the horizontal. The…
A: 43.467 in lbExplanation:
Q: 16. A steel ball of mass 0.50 kg moving with a velocity 1.5 m/s strikes a second ball of mass 0.300…
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Q: For the circuit shown below, E = 20 V, L = 4.0 mH, and R_1 = R_2 = 5.0 Ω. After steadystate is…
A: (a) 4A (b) 2.426A (c) 12.13V Above are approximated answers. Explanation:Step 1:Step 2:
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A: 0.3305 NExplanation:Step 1: Step 2: Step 3: Step 4:
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A:
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A:
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how much force do the expanding gases in a gun barrel exert on a 6.0g bullet as it accelerates from rest to 500.0m/s in the 0.70 m long barrel
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- A rocket for use in deep space is to be capable of boosting a total load (payload plus rocket frame and engine) of 3.00 metric tons to a speed of 10 000 m/s. (a) It has an engine and fuel designed to produce an exhaust speed of 2 000 m/s. How much fuel plus oxidizer is required? (b) If a different fuel and engine design could give an exhaust speed of 5 000 m/s, what amount of fuel and oxidizer would be required for the same task? (c) Noting that the exhaust speed in part (b) is 2.50 times higher than that in part (a), explain why the required fuel mass is not simply smaller by a factor of 2.50.Two identical steel balls, each of mass 67.4 g, are moving in opposite directions at 5.00 m/s. They collide head-on and bounce apart elastically. By squeezing one of the balls in a vise while precise measurements are made of the resulting amount of compression, you find that Hookes law is a good model of the balls elastic behavior. A force of 16.0 kN exerted by each jaw of the vise reduces the diameter by 0.200 mm. Model the motion of each ball, while the balls are in contact, as one-half of a cycle of simple harmonic motion. Compute the time interval for which the balls are in contact. (If yon solved Problem 57 in Chapter 7, compare your results from this problem with your results from that one.)As it plows a parking lot, a snowplow pushes an ever-growing pile of snow in front of it. Suppose a car moving through the air is similarly modeled as a cylinder of area A pushing a growing disk of air in front of it. The originally stationary air is set into motion at the constant speed v of the cylinder as shown in Figure P8.32. In a time interval t, a new disk of air of mass m must be moved a distance v t and hence must be given a kinetic energy 12(m)v2. Using this model, show that the cars power loss owing to air resistance is 12Av3 and that the resistive force acting on the car is 12Av2, where is the density of air. Compare this result with the empirical expression 12DAv2 for the resistive force. Figure P8.32
- A 5.0-g bullet leaves the muzzle of a rifle with a speed of 320 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.82-m-long barrel of the rifle?A suspicious physics student watches a stunt performed at an ice show. In the stunt, a performer shoots an arrow into a bale of hay (Fig. P11.24). Another performer rides on the bale of hay like a cowboy. After the arrow enters the bale, the balearrow system slides roughly 5 m along the ice. Estimate the initial speed of the arrow. Is there a trick to this stunt? FIGURE P11.24You are part of a team in an engineering class that is working on a scale model of a new design for a life vest. You have been asked to find the mass of a piece of foam that will be used for flotation. Because the piece is too bulky to fit on your balance, you break it into two parts. You measure the mass of the first part as 128.3 0.3 g and the second part as 77.0 0.3 g. a. What are the maximum and minimum values for the total mass you might reasonably report? b. What is the best estimate for the total mass of the foam? Hint: Propagation of uncertainty is described in Appendix A.
- During the US Open, a 56 g tennis ball is hit at 12.0 m/s. Considering, determine the maximum number of meters the ball will reach within 1.2 s.A musket ball, 0.2 kilograms, is shot with the speed of 313 meters per second into a metal can holding some clay. The musket ball penetrates 0.134 meters into the clay before coming to a stop. What force does the clay exert in stopping the musket ball. THE ANSWER IS -73111.19. I JUST DO NOT KNOW HOW TO GET THEREAn 'anti-drowning' bracelet is a water safety device. It contains a CO2 cartridge that can quickly inflate an airbag to help a diver rise to the surface in an emergency situation. Robert Irwin (son of "The ID: 2 0 1 Rep: 2 1 0 Crocodile Hunter" Steve Irwin) is snorkeling at the Great Barrier Reef Eq: 1 0 (Pseawater 1029 kg/m3). He swims 5.0 m below the surface of the water when there is an emergency and he activates the bracelet. The mass of Robert and his gear is 69.2 kg and the volume of salt water he displaces is 0.07 m3 before the safety device is activated. Once he activates the device, it inflates to a volume of 0.01 m3. How 1 Check: 0.5 0 -2 -1 0 Neat: Total: Y N Correct ans: long would it take him to get to the surface assuming he starts from rest (ignore any drag forces from the water)? ID fWIas, dispia cement, density 0.07 m3 5.0 M p 1029 Kgm ba 0.01 m 3 P= P= 09.2 : 988.57 Kg/m3 O.07
- 2. Calculate the average force exerted on an air-filled balloon when the air expels at a rate of 52.5 kg per second and travels 20 m in 3 seconds after taking flight.Squids rely on jet propulsion when a rapid escape is necessary, providedthey have filled their mantle with water prior to escape. An empty 1.5kg squid initially drifting at 1.6m/s pulls in 0.10kg of water in its mantle, then ejects this water at a remarkable 45m/s. How fast is this squid moving right after filling up with water?What is the effect of changing the masses of the objects? What is the effect of altering the distance between the objects?
