Homework Answers
13? Force 6 x3-2 x, find the work in mks units done by the force for...
13?
Force 6 x3-2 x, find the work in mks units done by the force for a distance of x A) 576000 J 12. in mks units done by the force for a distance of x-4 tox-6 E) 36001. B) 2000 J C) 1540 J D) 1800 J 13. An Atwood's machine with a friction less pulley has massl- 11 kg and is accelerating up at 2.7 m/s. What is the valos o mass 2? A) 1122 kg B) 89.1...
5. In problem 3, the partner slips and falls to the ground. How Is to the...
5. In problem 3, the partner slips and falls to the ground. How Is to the ground. How fast is she moving just before she hits the ground? a. 3.1 m/ s b . 6.3 m/s C. 9.8 m/s d. 12.3 m/s 6. A 5.0 kg cart is moving horizontally at 6,0 m/s. In order to change its speed to 10.0 m/s, the net work done on the cart must be a. 40 J b. 90 J c . 160J...
15) A golf ball of mass 0.045 kg is hit off a tee at a speed...
15) A golf ball of mass 0.045 kg is hit off a tee at a speed of 45 m/s. The golf club was in contact with the ball for 3 ms (3 x 10's). Determine, in N, the average force exerted on the golf ball by the golf club a) 367 b) 675 c) 294 d) 579 Answer 16) Two railroad cars, each of mass 6650 kg and traveling 30 m/s toward each other, collide head-on and come to rest....
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 2.20...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses
2.20 gallons of gasoline. Only 30% of the gasoline goes into useful
work by the force that keeps the car moving at constant speed
despite friction. (The energy content of gasoline is 1.3 ✕
108 J per gallon.)
(a) What is the force exerted to keep the car moving at constant
speed?
N
(b) If the required force is directly proportional to speed, how
many...
Quiz 1 February 13, 2019 Name Equations: F = k 9192 k=9 X 10°N m²/C2 =...
Quiz 1 February 13, 2019 Name Equations: F = k 9192 k=9 X 10°N m²/C2 = 1/(4teo), 80 = 8.85 X 10-12 C/N m2 e = 1.6 X 10-1°C me =9.1 X 10-31 kg m = 1.9 X 10-27 kg PE = k9;92 APE = q AV KE = zmu? E= -6 F N kg m/s2 E N/C | | PE J kg m/s | V V. JC and a negatively 1. (2) Draw the electric field lines surrounding a...
Additional info: Meal = 1720 Kilocalories Mass of myself = 50 kg The Joule () is...
Additional info:
Meal = 1720 Kilocalories
Mass of myself = 50 kg
The Joule () is the SI unit of energy. (J = kg:m? S2 A calorie is another unit of energy. The definition of a calorie is the amount of heat (energy) necessary to raise the temperature of Ig of water by 1° Celsius. Ig of water occupies 1 milliliter (ml) = 1 cubic centimeter (cm) of volume. lkcal=4186J Energy comes in many forms and energy may be converted...
CHAPTER 9 REVIEW QUESTIONS 1. How much heat is required to raise the temperature of a...
CHAPTER 9 REVIEW QUESTIONS 1. How much heat is required to raise the temperature of a 0.04 kg stainless steel spoon from 20°C to 50°C if the specific heat of stainless steel is 0.50 kJ/kg-C? (A) 200 (B) 400 (C) 600 (D) 800) (E) 1000 5. An ideal gas is confined to a container whose volume is fixed. If the container holds n moles of gas, by what factor will the pressure increase if the absolute temperature is increased by...
CHAPTER 9 REVIEW QUESTIONS 1. How much heat is required to raise the temperature of a...
CHAPTER 9 REVIEW QUESTIONS 1. How much heat is required to raise the temperature of a 0.04 kg stainless steel spoon from 20°C to 50°C if the specific heat of stainless steel is 0.50 kJ/kg-C? (A) 200 (B) 400 (C) 600 (D) 800) (E) 2000 5. An ideal gas is confined to a container whose volume is fixed. If the container holds n moles of gas, by what factor will the pressure increase if the absolute temperature is increased by...
CHAPTER 9 REVIEW QUESTIONS 1How much heat is required to raise the temperature of a 0.04...
CHAPTER 9 REVIEW QUESTIONS 1How much heat is required to raise the temperature of a 0.04 kg stainless steel spoon from 20°C to 50°C if the specific heat of stainless steel is 0.50 k/kg-C? 5. An ideal gas is confined to a container whose volume is fixed. If the container holds n moles of gas, by what factor will the pressure increase if the absolute temperature is increased by a factor of 27 (A) 200J (B) 400 J (C) 600...
t the Wackes in ersed from e with mantude of 15 The Black I haa t...
t the Wackes in ersed from e with mantude of 15 The Black I haa t he block 2 has mass and Neck has a mass Calculate c t of inte friction between black and a (A) 0.34 B) 0.45 (C) 0.87 (D) 0:54 0.99 14 The work of a given force has its maximum positive value when CA) The vector of displacement and force are at the same direction B) The vector of displacement and force are at the...
13?
Force 6 x3-2 x, find the work in mks units done by the force for a distance of x A) 576000 J 12. in mks units done by the force for a distance of x-4 tox-6 E) 36001. B) 2000 J C) 1540 J D) 1800 J 13. An Atwood's machine with a friction less pulley has massl- 11 kg and is accelerating up at 2.7 m/s. What is the valos o mass 2? A) 1122 kg B) 89.1...
5. In problem 3, the partner slips and falls to the ground. How Is to the ground. How fast is she moving just before she hits the ground? a. 3.1 m/ s b . 6.3 m/s C. 9.8 m/s d. 12.3 m/s 6. A 5.0 kg cart is moving horizontally at 6,0 m/s. In order to change its speed to 10.0 m/s, the net work done on the cart must be a. 40 J b. 90 J c . 160J...
15) A golf ball of mass 0.045 kg is hit off a tee at a speed of 45 m/s. The golf club was in contact with the ball for 3 ms (3 x 10's). Determine, in N, the average force exerted on the golf ball by the golf club a) 367 b) 675 c) 294 d) 579 Answer 16) Two railroad cars, each of mass 6650 kg and traveling 30 m/s toward each other, collide head-on and come to rest....
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses
2.20 gallons of gasoline. Only 30% of the gasoline goes into useful
work by the force that keeps the car moving at constant speed
despite friction. (The energy content of gasoline is 1.3 ✕
108 J per gallon.)
(a) What is the force exerted to keep the car moving at constant
speed?
N
(b) If the required force is directly proportional to speed, how
many...
Quiz 1 February 13, 2019 Name Equations: F = k 9192 k=9 X 10°N m²/C2 = 1/(4teo), 80 = 8.85 X 10-12 C/N m2 e = 1.6 X 10-1°C me =9.1 X 10-31 kg m = 1.9 X 10-27 kg PE = k9;92 APE = q AV KE = zmu? E= -6 F N kg m/s2 E N/C | | PE J kg m/s | V V. JC and a negatively 1. (2) Draw the electric field lines surrounding a...
Additional info:
Meal = 1720 Kilocalories
Mass of myself = 50 kg
The Joule () is the SI unit of energy. (J = kg:m? S2 A calorie is another unit of energy. The definition of a calorie is the amount of heat (energy) necessary to raise the temperature of Ig of water by 1° Celsius. Ig of water occupies 1 milliliter (ml) = 1 cubic centimeter (cm) of volume. lkcal=4186J Energy comes in many forms and energy may be converted...
CHAPTER 9 REVIEW QUESTIONS 1. How much heat is required to raise the temperature of a 0.04 kg stainless steel spoon from 20°C to 50°C if the specific heat of stainless steel is 0.50 kJ/kg-C? (A) 200 (B) 400 (C) 600 (D) 800) (E) 1000 5. An ideal gas is confined to a container whose volume is fixed. If the container holds n moles of gas, by what factor will the pressure increase if the absolute temperature is increased by...
CHAPTER 9 REVIEW QUESTIONS 1. How much heat is required to raise the temperature of a 0.04 kg stainless steel spoon from 20°C to 50°C if the specific heat of stainless steel is 0.50 kJ/kg-C? (A) 200 (B) 400 (C) 600 (D) 800) (E) 2000 5. An ideal gas is confined to a container whose volume is fixed. If the container holds n moles of gas, by what factor will the pressure increase if the absolute temperature is increased by...
CHAPTER 9 REVIEW QUESTIONS 1How much heat is required to raise the temperature of a 0.04 kg stainless steel spoon from 20°C to 50°C if the specific heat of stainless steel is 0.50 k/kg-C? 5. An ideal gas is confined to a container whose volume is fixed. If the container holds n moles of gas, by what factor will the pressure increase if the absolute temperature is increased by a factor of 27 (A) 200J (B) 400 J (C) 600...
t the Wackes in ersed from e with mantude of 15 The Black I haa t he block 2 has mass and Neck has a mass Calculate c t of inte friction between black and a (A) 0.34 B) 0.45 (C) 0.87 (D) 0:54 0.99 14 The work of a given force has its maximum positive value when CA) The vector of displacement and force are at the same direction B) The vector of displacement and force are at the...
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