Suppose an aardvark is digging a horizontal tunnel with its sharp claws. The aardvark applies a...
Suppose an aardvark is digging a horizontal tunnel with its sharp claws. The aardvark applies a constant force of 900 N to finish digging the tunnel in 5 minutes. During this time, it exerts a total power of 100 Watts. How long is the tunnel in meters?
Answer: 33.3 m
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Suppose an aardvark is digging a horizontal tunnel with its
sharp claws. The aardvark applies a...
1. suppose a man applies a 60N force to a 50 KG stack of waves at...
1. suppose a man applies a 60N force to a 50 KG stack of waves
at an angle of 45° above the horizontal. He manages to pull the way
to 10 m. Compute the speed of the stack of weights after the 10 m
if the stack started from rest
2. if your leg exerts a force of nine and as it moves 0.4 M
within 0.2 seconds, what is the power generated by your leg?
3. The applied force...
Mountain climbers use nylon safety rope whose elasticity plays an important role in cushioning the sharp...
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Assignment 9 If you run around a half-mile track twice in 20 minutes a. What is...
Assignment 9 If you run around a half-mile track twice in 20 minutes a. What is the total distance traveled? b. What is the speed in mi/hr (show work)? c. What is the total displacement? d. What is the velocity in mi/hr? You travel east 2 miles and then turn to the north and walk another 3 miles. What is your displacement (show work, make sure to show the direction as well)? You travel 6 miles at 40 degrees. How...
Please draw any diagrams that would be helpful to understanding what I am suppose to be doing. 1....
Please draw any diagrams that would be helpful to understanding
what I am suppose to be doing.
1. Mathematically prove that if mechanical conservation of
energy applies, work W= -(Deta)Ep.
2. A machine applied a force F(x) = 7x2 - 6x [N] to a
robot to move the robot from x = 1 m to x = 4 m. Determine the work
done by the machine.
3. How much work is done against gravity by Prof. if he holds a...
TR PROBLEMS: Show your 1. A 1800 Kg car moves around a flat circular road of...
TR PROBLEMS: Show your 1. A 1800 Kg car moves around a flat circular road of radius R- 100 m friction available between the tire and the road is 10368 N. Calculate (A) car can have so that it does not get out of the curve (B) the time alLoroblems radius R-100 m. The maximum amount ef (C) the new radius of the bigger circle the car moves on if it moves at a higher s the maxinmum speed the...
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...
1. An unknown mass (mı) on a rough horizontal surface is attached by a wire that passes over a massless, frictionless pulley to a 2.50kg mass (m2) as shown below. The bottom of the hanging mass is 1....
1. An unknown mass (mı) on a rough horizontal surface is attached by a wire that passes over a massless, frictionless pulley to a 2.50kg mass (m2) as shown below. The bottom of the hanging mass is 1.50m above the floor. The system is released from rest at t-0s and the 2.50kg mass strikes the floor 0.82s later. The system is now returned to its initial position and a 1.20kg mass is placed on top of the block of mass...
o Consider the renction 2A(g) + B(g) + 2(g) 2D(8) E(s) Suppose at time =0, the...
o Consider the renction 2A(g) + B(g) + 2(g) 2D(8) E(s) Suppose at time =0, the partial pressures of the reactant gases are 5 atm A, 10 atm B, and 8 atm C. After 20 minutes the partial pressure of A was found to be 1 atm. a) What is the initial total pressure in the flask at time=0? Bus P + P +++ b) What is the total pressure inside the flask after 20 minutes? Set up a start,...
1. A pole is held vertically by attaching wires at a height of 13.4 m above...
1. A pole is held vertically by attaching wires at a height of 13.4 m above the ground. The other end of each wire is anchored in the ground at a distance of 9.54 m from the base of the pole. The pole makes a right angle with the ground. What is the length of each wire? 2. A bug crawls 2.25 m along the base of a wall. Upon reaching a corner, the bug's direction of travel changes from...
A ball is kicked from a location < 6, 0, -9> m (on the ground) with...
A ball is kicked from a location < 6, 0, -9> m (on the ground) with initial velocity<-13, 17.0, -4> m/s. The ball's speed is low enough that air resistance is negligible (a) What is the velocity of the ball 0.6 s after being kicked? (Use the Momentum Principle!) 11.2 4 m/S (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.6 s after it is kicked? the arithmetic...
1. suppose a man applies a 60N force to a 50 KG stack of waves
at an angle of 45° above the horizontal. He manages to pull the way
to 10 m. Compute the speed of the stack of weights after the 10 m
if the stack started from rest
2. if your leg exerts a force of nine and as it moves 0.4 M
within 0.2 seconds, what is the power generated by your leg?
3. The applied force...
Please draw any diagrams that would be helpful to understanding
what I am suppose to be doing.
1. Mathematically prove that if mechanical conservation of
energy applies, work W= -(Deta)Ep.
2. A machine applied a force F(x) = 7x2 - 6x [N] to a
robot to move the robot from x = 1 m to x = 4 m. Determine the work
done by the machine.
3. How much work is done against gravity by Prof. if he holds a...
TR PROBLEMS: Show your 1. A 1800 Kg car moves around a flat circular road of radius R- 100 m friction available between the tire and the road is 10368 N. Calculate (A) car can have so that it does not get out of the curve (B) the time alLoroblems radius R-100 m. The maximum amount ef (C) the new radius of the bigger circle the car moves on if it moves at a higher s the maxinmum speed the...
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...
1. An unknown mass (mı) on a rough horizontal surface is attached by a wire that passes over a massless, frictionless pulley to a 2.50kg mass (m2) as shown below. The bottom of the hanging mass is 1.50m above the floor. The system is released from rest at t-0s and the 2.50kg mass strikes the floor 0.82s later. The system is now returned to its initial position and a 1.20kg mass is placed on top of the block of mass...
o Consider the renction 2A(g) + B(g) + 2(g) 2D(8) E(s) Suppose at time =0, the partial pressures of the reactant gases are 5 atm A, 10 atm B, and 8 atm C. After 20 minutes the partial pressure of A was found to be 1 atm. a) What is the initial total pressure in the flask at time=0? Bus P + P +++ b) What is the total pressure inside the flask after 20 minutes? Set up a start,...
A ball is kicked from a location < 6, 0, -9> m (on the ground) with initial velocity<-13, 17.0, -4> m/s. The ball's speed is low enough that air resistance is negligible (a) What is the velocity of the ball 0.6 s after being kicked? (Use the Momentum Principle!) 11.2 4 m/S (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.6 s after it is kicked? the arithmetic...
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