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
A pickup truck is traveling down the highway at a steady speed of 24.3 m/s. The...
A pickup truck is traveling down the highway at a steady speed of 24.3 m/s. The truck has a drag coefficient of 0.45 and a cross-sectional area of the truck is 3.3 m^s. Assume the density of the air is 1.2 kg/m^3. How much energy does the truck lose to air resistance per hour? Give your answer in units of MJ (megajoules).
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)...
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)...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago