Engineering analysis

1. A 120 V hair dryer has two setting:720W and 1320 W. a. at which setting do yo

1. A 120 V hair dryer has two setting:720W and 1320 W. a. at which setting do you expect the resistance to behigher720 or 1320. b.After making a guess,determine the resistance at …

1. A 120 g copper calorimeter cup contains 210 cm3 of water and 25 g of ice, all

1. A 120 g copper calorimeter cup contains 210 cm3 of water and 25 g of ice, all in thermal equilibrium. A 220 g piece of iron is heated to a high temperature and dropped into the…

1. A 120-V rms voltage at 1000 Hz is applied to a 2.00-mH inductor, a 4.00-uF ca

1. A 120-V rms voltage at 1000 Hz is applied to a 2.00-mH inductor, a 4.00-uF capacitor and a resistor. If the rms value of the current in this circuit is 0.400 A, what is the val…

1. A 12kg rock approaches the foot of a hill with a speed of 18m/s. This hill sl

1. A 12kg rock approaches the foot of a hill with a speed of 18m/s. This hill slopes upward at a constant angle of 40 degrees above the horizontal. The coefficient of kinetic fric…

1. A 13-g bullet is fired from a 3.33-kg rifle. After the bullet leaves the rifl

1. A 13-g bullet is fired from a 3.33-kg rifle. After the bullet leaves the rifle, it moves at a speed of 291 m/s. What is tA 13-g bullet is fired from a 3.81-kg rifle. After the …

1. A 137 Cs source generates 73.0 mrem of radiation. If it is placed in a steel

1. A 137Cs source generates 73.0 mrem of radiation. If it is placed in a steel box that is 2.1 in in thickness, what will be the level of radiation outside the box? Round your ans…

1. A 139-turn circular coil of radius 2.37 cm is immersed in a uniform magnetic

1. A 139-turn circular coil of radius 2.37 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. During 0.129 s the magnetic field strength in…

1. A 1400 kg car carrying four 87 kg people travels over a \"washboard\" dirt ro

1. A 1400 kg car carrying four 87 kg people travels over a "washboard" dirt road with corrugations 3.4 m apart. The car bounces with maximum amplitude when its speed is 18 km/h. W…

1. A 140lb researcher received a shipment of lab equipment in a 2200 N crate. Sh

1. A 140lb researcher received a shipment of lab equipment in a 2200 N crate. She pushes it across the floor applying a 90 N force with her hands. Which Statement is correct?    A…

1. A 15 kg cannon ball is red with a muzzle speed of 40m=s making an angle of 53

1. A 15 kg cannon ball is red with a muzzle speed of 40m=s making an angle of 53 degree with the horizontal.(Neglect air resistance.) (a) What are its initial vertical and horizon…

1. A 15.5 kg mass vibrates in simple harmonic motion with a frequency of 18.53 H

1. A 15.5 kg mass vibrates in simple harmonic motion with a frequency of 18.53 Hz. It has a maximum displacement from equilibrium of +16.4 cm at time, t = 0.00 s. The displacement…

1. A 15.7 k g dog is running northward at 2.03 m / s , while a 6.36 k g cat is r

1. A 15.7kg dog is running northward at 2.03m/s , while a 6.36kg cat is running eastward at 3.32m/s . Their 78.3kg owner has the same momentum as the two pets taken together. a) F…

1. A 150 Newton horizontal force pushes a 20 kg mass sitting on a horizontal sur

1. A 150 Newton horizontal force pushes a 20 kg mass sitting on a horizontal surface. Additionally, the horizontal surface exerts a 50 Newton frictional force on the mass. What is…

1. A 150 g copper bowl contains 250 g of water, both at 21.0°C. A very hot 430 g

1. A 150 g copper bowl contains 250 g of water, both at 21.0°C. A very hot 430 g copper cylinder is dropped into the water, causing the water to boil, with 7.56 g being converted …

1. A 150 g mass attached to a horizontal spring oscillates at a frequency of 3.4

1. A 150 g mass attached to a horizontal spring oscillates at a frequency of 3.40 Hz . At t =0s, the mass is at x= 4.40 cm and has vx =? 29.0 cm/s . Determine the phase constant. …

1. A 1500kg car takes a 50m radius unbanked curve at 15m/s. What is the size of

1. A 1500kg car takes a 50m radius unbanked curve at 15m/s. What is the size of the friction force on the car? 2. A new car is tested on a 200m diameter track. If the car speeds u…

1. A 15x15 concrete pile of 90 length is used to support a vertical load in a 90

1. A 15x15 concrete pile of 90 length is used to support a vertical load in a 90' deep heavily over- consolidated clay layer followed by a deep sand layer. Assuming that the groun…

1. A 16.4-m length of hose is wound around a reel, which is initially at rest. T

1. A 16.4-m length of hose is wound around a reel, which is initially at rest. The moment of inertia of the reel is 0.39 kg · m2, and its radius is 0.173 m. When the reel is turni…

1. A 17 g bullet is fired into the bob of a ballistic pendulum of mass 1.6 kg. W

1. A 17 g bullet is fired into the bob of a ballistic pendulum of mass 1.6 kg. When the bob is at its maximum height, the strings make an angle of 60° with the vertical. The lengt…

1. A 19-g paper clip is attached to the rim of a phonograph record with a diamet

1. A 19-g paper clip is attached to the rim of a phonograph record with a diameter of 47 cm, spinning at 2.6 rad/s. What is the magnitude of its angular momentum (in kg m2/s)? Rou…

1. A 1kg ball with velocity 20m/s bounces perpendicularly offa wall so it has th

1. A 1kg ball with velocity 20m/s bounces perpendicularly offa wall so it has the same speed afterward if the average force is20000N then how long in milliseconds did the collisio…

1. A 1m by 2m window of thickness 2mm between an insidetemperature of 20°C and a

1. A 1m by 2m window of thickness 2mm between an insidetemperature of 20°C and an outside temperature of 0°Callows a loss of 120,000J each min. What is its thermalconductivity?   …

1. A 2 200-kg pile driver is used to drive a steel I-beam into the ground. The p

1. A 2 200-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 3.20 m before coming into contact with the top of the beam, and it drives the beam…

1. A 2,022-kg car is moving up a road with a slope (grade) of 20% while speeding

1. A 2,022-kg car is moving up a road with a slope (grade) of 20% while speeding up at a rate of 2.1 m/s^2. What is the direction and magnitude of the frictional force? (define po…

1. A 2,022-kg car is moving up a road with a slope (grade) of 20% while speeding

1. A 2,022-kg car is moving up a road with a slope (grade) of 20% while speeding up at a rate of 2.1 m/s^2. What is the direction and magnitude of the frictional force? (define po…

1. A 2,200-kg pile driver is used to drive a steel I-beam into the ground. The p

1. A 2,200-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.40 m before coming into contact with the top of the beam, and it drives the beam…

1. A 2,372-kg car is moving down a road with a slope (grade) of 10% at a constan

1. A 2,372-kg car is moving down a road with a slope (grade) of 10% at a constant speed of 16 m/s. What is the direction and magnitude of the frictional force? (define positive in…

1. A 2-kg pellet travels with velocity 100 m/s to the right when it collides wit

1. A 2-kg pellet travels with velocity 100 m/s to the right when it collides with a 38-kg hanging mass which is initially at rest. After the collision, the pellet remains lodged i…

1. A 2.0 cm tall object is placed 80.0 cm to the left of ascreen. You want to us

1. A 2.0 cm tall object is placed 80.0 cm to the left of ascreen. You want to use a thin converging lens with a +15.0cm focal length to form a real image of this object onto thesc…

1. A 2.0 kg ball is attached to a vertical post with two strings, one 2 m long a

1. A 2.0 kg ball is attached to a vertical post with two strings, one 2 m long and the other 1 m long. If the ball is set whirling in a horizantal circle, what is the minimum spee…

1. A 2.0 kg block is released from rest at the top of 22 degree frictionless inc

1. A 2.0 kg block is released from rest at the top of 22 degree frictionless inclined plane of height 0.65 m. At the bottom of the inclined plane, it collides with and sticks to a…

1. A 2.0 kg block sits on a 4.0 kg block that is on a frictionless table. The co

1. A 2.0 kg block sits on a 4.0 kg block that is on a frictionless table. The coefficients of friction between the blocks are µs = 0.60 and µk = 0.20. (a) What is the maximum forc…

1. A 2.0 x 10^3 kg sailboat experiences an eastward force of 3.0 x 10^3 N by the

1. A 2.0 x 10^3 kg sailboat experiences an eastward force of 3.0 x 10^3 N by the ocean tide and a wind force against its sails with magnitude of 6.0 x 10^3 N directed toward the n…

1. A 2.00 kg ball is attached to the ceiling by a 1.00 m long string. The height

1. A 2.00 kg ball is attached to the ceiling by a 1.00 m long string. The height of the room is 3.0 m. (a) What is the gravitational potential energy of the ball relative to the c…

1. A 2.00-mol sample of a diatomic ideal gas expands slowly and adiabatically fr

1. A 2.00-mol sample of a diatomic ideal gas expands slowly and adiabatically from a pressure of 5.06 atm and a volume of 13.0 L to a final volume of 30.2 L. (a) What is the final…

1. A 2.00-mol sample of a diatomic ideal gas expands slowly and adiabatically fr

1. A 2.00-mol sample of a diatomic ideal gas expands slowly and adiabatically from a pressure of 5.06 atm and a volume of 13.0 L to a final volume of 30.2 L. (a) What is the final…

1. A 2.05 kg ball is attached to the bottom end of a length of 9 lb (40.1 N) fis

1. A 2.05 kg ball is attached to the bottom end of a length of 9 lb (40.1 N) fishing line. The top end of the fishing line is held stationary. The ball is released from rest while…

1. A 2.2nC charge is at the origin and a -3.2nC charge is at x = 1.4cm a) At wha

1. A 2.2nC charge is at the origin and a -3.2nC charge is at x = 1.4cm a) At what x-coordinate could you place a proton so that it would experience no net force? b) Would the net …

1. A 2.5-K ohm resistor and a 4.4-mF capacitor are in series, and the combinatio

1. A 2.5-K ohm resistor and a 4.4-mF capacitor are in series, and the combination is connected across a 15-V power supply. Find the charge on the capacitor and current in the resi…

1. A 2.61-m-tall container is filled to the brim, partway with mercury and the r

1. A 2.61-m-tall container is filled to the brim, partway with mercury and the rest of the way with water. The container is open to the atmosphere. What must be the depth of the m…

1. A 20 cm long metal rod is pulled along two frictionless conducting rails at c

1. A 20 cm long metal rod is pulled along two frictionless conducting rails at constant speed of 5 m/s. The rails have negligible resistance, and the rod has a resistance of 0.52 …

1. A 20 kg object is being pulled with F Newton force which has 60 degrees with

1. A 20 kg object is being pulled with F Newton force which has 60 degrees with ground 112j work is done to move 50 m distance . Assuming a frictional surface , calculate F. 2. At…

1. A 20 kg rock is on the edge of a 100 m cliff. The rock falls from the cliff.

1. A 20 kg rock is on the edge of a 100 m cliff. The rock falls from the cliff. What speed does the rock have as it strikes the ground? 2. Tarzan swings down from a tree limb that…

1. A 20 kg rock is on the edge of a 100 m cliff. The rock falls from the cliff.

1. A 20 kg rock is on the edge of a 100 m cliff. The rock falls from the cliff. What speed does the rock have as it strikes the ground? 2. Tarzan swings down from a tree limb that…

1. A 200 g mass resting on a frictionless surface is attached to a spring with a

1. A 200 g mass resting on a frictionless surface is attached to a spring with a stiffness of 40.0 N/m. At t = 0 it is 0.100 m to the left of the equilibrium position and travelin…

1. A 2000N crate rests on the floor A) how much work is required to move it at c

1. A 2000N crate rests on the floor A) how much work is required to move it at constant speed 6m across the floor against a friction force of 300N? B) how much work is done to lif…

1. A 200kg roller-coaster car is on a frictionless track initially moving at 3 m

1. A 200kg roller-coaster car is on a frictionless track initially moving at 3 m/s at the top of the first hill. What is the speed of the roller coaster at each of the peaks of th…

1. A 208 volt, single phase motor can operate on a 120/208 volt, 3 phase, 4 wire

1. A 208 volt, single phase motor can operate on a 120/208 volt, 3 phase, 4 wire system. (True or False) 2. A #4/0 copper conductor in 430 C ambient atmosphere has an ampacity of …

1. A 208 volt, single phase motor can operate on a 120/208 volt, 3 phase, 4 wire

1. A 208 volt, single phase motor can operate on a 120/208 volt, 3 phase, 4 wire system. (True or False) 2. A #4/0 copper conductor in 430 C ambient atmosphere has an ampacity of …

1. A 2180-kg car is slowed down uniformly from 24.6 m/s to 5.2 m/s in 3.87 s. (a

1. A 2180-kg car is slowed down uniformly from 24.6 m/s to 5.2 m/s in 3.87 s. (a) What absolute value of the average total force acted on the car during this time? (Note: your ans…