Homework Answers
Add Answer to:
A fire helicopter carries a 967 kg bucket at the end of a cable 19 m...
2) A fire-fighter helicopter carries a large bucket of water at the end of a cable....
2) A fire-fighter helicopter carries a large bucket of water at the end of a cable. The speed of the helicopter is 65 m/s and air resistance results in a cable angle of 40°. 'What would be the terminal velocity of the bucket if dropped? (Assume that the resistive force is described by R = bv 2.) DASAL ob
A spherical raindrop 3.3 mm in diameter falls through a vertical distance of 4000 m. Take...
A spherical raindrop 3.3 mm in diameter falls through a vertical distance of 4000 m. Take the cross-sectional area of a raindrop ,drag coefficient 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) Calculate the speed a spherical raindrop would achieve falling from 4000 m in the absence of air drag 280 m/s (b) What would its speed be at the end of 4000 m when there is air drag? 1.091 What...
An 8.0-kg bucket is attached to a long string forming a pendulum. It is released from...
An 8.0-kg bucket is attached to a long string forming a pendulum. It is released from rest at a height of 1.2 m above the equilibrium position of the pendulum. It swings down and, as it reaches the equilibrium position, it has a speed of 4.0 m/s. Do not presume that air resistance can be neglected. a. [1] What does “equilibrium” mean in physics? Do not justify. b. [5] Determine i. the work done by tension ii. and the work...
A spherical raindrop 1.9 mm in diameter falls through a vertical distance of 4150 m. Take...
A spherical raindrop 1.9 mm in diameter falls through a vertical distance of 4150 m. Take the cross-sectional area of a raindrop = πr2, drag coefficient = 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) Calculate the speed a spherical raindrop would achieve falling from 4150 m in the absence of air drag. _________ m/s (b) What would its speed be at the end of 4150 m when there is air...
A pitcher hurls a 0.145 kg baseball past a batter with at 40.2 m/s (90 mile...
A pitcher hurls a 0.145 kg baseball past a batter with at 40.2 m/s (90 mile per hour). Find the resistive force acting on the ball at this speed. Use the following information Terminal speed of the baseball, v_t = 43 m/s Density of air rho = 1.20 kg/m^3 Cross sectional area of the baseball A = 4.2 times 10^-3 m^2
1.A pickup truck is traveling down the highway at a steady speed of 31.1 m/s. The...
1.A pickup truck is traveling down the highway at a steady speed of 31.1 m/s. The truck has a drag coefficient of 0.45 and a cross-sectional area of the truck is 3.3 3.3 m2. Assume the density of the air is 1.2 1.2 kg/m3. How much energy does the truck lose to air resistance per hour? Give your answer in units of MJ (megajoules). 2.An unknown object is placed inside of a spherical container and dropped from an airplane. When...
Please answer both 4&5 asap thanks!!! 1. A 0.150-kg glider is moving to the right on...
Please answer both 4&5 asap thanks!!!
1. A 0.150-kg glider is moving to the right on a frictionless, horizontal air track with a speed of (nen m/s. It has a head-on collision with a 0.300-kg glider that is moving to the left with a speed of 2.20 m/s. Find the final velocity (magnitude and direction) of each glider if the collision is elastic 2. A part of a mechanical linkage has a mass of 4 kg. We measure its moment...
problem e please 2. The amusement park ride consists of a 200-kg car and passenger that are traveling at 3 m/s along a circular path having a radius of 8 m (horizontal plane) If at t 0, the cable OA i...
problem e please
2. The amusement park ride consists of a 200-kg car and passenger that are traveling at 3 m/s along a circular path having a radius of 8 m (horizontal plane) If at t 0, the cable OA is pulled in toward O at 0.5 m/s, determine: a. Is energy conserved? why? (5%). b. Is angular momentum about point O conserved? why? (596). C. The speed of the car when t-4 s (10%). d. work done to pull...
A U-tube contains liquid of unknown density. An oil of density 770 kg/m³ is poured into...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
A ball of soft clay with mass 1 kg falls from a height of 10 m...
A ball of soft clay with mass 1 kg falls from a height of 10 m starting at rest. When the clay hits the ground it flattens and comes to a stop. Which of the following is true? Gravity does work on the ball equal to 980 J, and all this energy is dissipated during the deformation of the ball on impact. Gravity does work on the ball equal to 98 J, and all of this energy is dissipated during...
2) A fire-fighter helicopter carries a large bucket of water at the end of a cable. The speed of the helicopter is 65 m/s and air resistance results in a cable angle of 40°. 'What would be the terminal velocity of the bucket if dropped? (Assume that the resistive force is described by R = bv 2.) DASAL ob
A spherical raindrop 3.3 mm in diameter falls through a vertical distance of 4000 m. Take the cross-sectional area of a raindrop ,drag coefficient 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) Calculate the speed a spherical raindrop would achieve falling from 4000 m in the absence of air drag 280 m/s (b) What would its speed be at the end of 4000 m when there is air drag? 1.091 What...
An 8.0-kg bucket is attached to a long string forming a pendulum. It is released from rest at a height of 1.2 m above the equilibrium position of the pendulum. It swings down and, as it reaches the equilibrium position, it has a speed of 4.0 m/s. Do not presume that air resistance can be neglected. a. [1] What does “equilibrium” mean in physics? Do not justify. b. [5] Determine i. the work done by tension ii. and the work...
A pitcher hurls a 0.145 kg baseball past a batter with at 40.2 m/s (90 mile per hour). Find the resistive force acting on the ball at this speed. Use the following information Terminal speed of the baseball, v_t = 43 m/s Density of air rho = 1.20 kg/m^3 Cross sectional area of the baseball A = 4.2 times 10^-3 m^2
Please answer both 4&5 asap thanks!!!
1. A 0.150-kg glider is moving to the right on a frictionless, horizontal air track with a speed of (nen m/s. It has a head-on collision with a 0.300-kg glider that is moving to the left with a speed of 2.20 m/s. Find the final velocity (magnitude and direction) of each glider if the collision is elastic 2. A part of a mechanical linkage has a mass of 4 kg. We measure its moment...
problem e please
2. The amusement park ride consists of a 200-kg car and passenger that are traveling at 3 m/s along a circular path having a radius of 8 m (horizontal plane) If at t 0, the cable OA is pulled in toward O at 0.5 m/s, determine: a. Is energy conserved? why? (5%). b. Is angular momentum about point O conserved? why? (596). C. The speed of the car when t-4 s (10%). d. work done to pull...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
A ball of soft clay with mass 1 kg falls from a height of 10 m starting at rest. When the clay hits the ground it flattens and comes to a stop. Which of the following is true? Gravity does work on the ball equal to 980 J, and all this energy is dissipated during the deformation of the ball on impact. Gravity does work on the ball equal to 98 J, and all of this energy is dissipated during...
Most questions answered within 3 hours.
-
When an object moves through a fluid, the fluid exerts a viscous
force F on the...
asked 1 hour ago -
Why did the observed chemistry of thallium mislead Mendelev to
place the group 13 element (Tl)...
asked 3 hours ago -
A sine wave signal is displayed on the screen of an
oscilloscope. 6 peak-to-peak divisions are...
asked 5 hours ago -
a
1500 kg car accelerates from 0 to 25 m / s in 21.0s. How much...
asked 6 hours ago -
Calculate the molarity of each of the following solutions:
(a) 30.5 g of ethanol (C2H5OH) in...
asked 6 hours ago -
1 Refer to the build-borrow-or-buy framework as a decision tree
for the Adidas company. Identify a...
asked 7 hours ago -
Problem 2: The Problem of Social Cost. A Rancher and Farmer live
side-by-side to each other....
asked 8 hours ago -
a uniform bar of weight 40N is 4 meter long. weights
on 60N and 100N are...
asked 7 hours ago -
Define Diet counceling? What are the
responsibilities of a counselor?
asked 9 hours ago -
Hey im just confused about how to put the ' A angle n' and ' S...
asked 9 hours ago -
A short essay about the WSJ article on Oreo versus Hydrox.
asked 9 hours ago -
##8. A program contains the following function definition:
##def cube(num):
##return num * num * num...
asked 10 hours ago