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A 95-kg cyclist on a 8-kg bicycle starts coasting on level ground at 24 m/sec. Use...
A 10,000-kg truck coasts to a stop from a speed of 40m/sec. The truck's motion obeys...
A 10,000-kg truck coasts to a stop from a speed of 40m/sec. The truck's motion obeys the equation V= ve^(-(k/m)t) with k=200kg/sec. a. about how far will the truck coast before reaching a complete stop?(round to the nearest whole meter) b. about how long will it take the truck's speed to drop to 7m/sec? (round to the nearest 0.1 sec.)
12) Suppose that an Iowa class battleship has mass around 52,000 metric tons (52,000,000 kg) and...
12)
Suppose that an Iowa class battleship has mass around 52,000
metric tons (52,000,000 kg) and a k-value in the equation
of about 60,000 kg/s, where v is the ship's velocity,
is the initial velocity, m is the mass, k is a
constant of proportionality, and t is time. Assume that the ship
loses power when it is moving at a speed of 9 m/s
a.
About how far will the ship coast before it is dead in the
water?...
Your 60 kg friend is bungee jumping from a bridge which is 60 m high. She...
Your 60 kg friend is bungee jumping from a bridge which is 60 m high. She falls a distance of 25 m before her bungee starts to stretch. -If she starts from rest at the top of the bridge, what is her change in kinetic energy (in kJ) right before her bungee begins to stretch? -If the bungee brings her to a stop when she is just about to to hit the ground (has fallen a distance 60 m), what...
c) 353 J 13. A 200 kg roller coaster starts from 50 m above the ground....
c) 353 J 13. A 200 kg roller coaster starts from 50 m above the ground. (a) 5 It falls toward the ground with out any friction then once it ((c) reaches the ground level, the brakes are applied over 30 m 19. A in order to bring the coaster to a complete stop. How much ms-1 work is done by the brakes? 20 N (a) 10 x10 J (c)-10 x10 J 14. A 7 kg ball is dropped from...
---O (11011 0 JOUUDIO m w your nand)? t= sec = _min (keep 2 significant digits...
---O (11011 0 JOUUDIO m w your nand)? t= sec = _min (keep 2 significant digits in your answers to this problem). Long range big guns can shoot a shell at the muzzle speed about 1.50 km/sec. How far can this shell go if shot directly up? h= km= miles. How long would it be in the air? t = sec = min :) If there were no air drag, at what speed would raindrops hit the ground when they...
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...
Problem number 8,14,&20. 11. A softball player hits the ball and starts running toward first 21....
Problem number 8,14,&20.
11. A softball player hits the ball and starts running toward first 21. I Which of the following moti base. Draw a motion diagram, using the particle model, show- ing her velocity vectors during the first few seconds of her run. diagram of Figure Q1.21? A. An ice skater gliding acros B. An airplane braking to a s C. A ear pulling away from a D. A pool ball bouncing off 12. A child is sledding on...
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...
A child pushes her friend (m = 25 kg) located at a radius r = 1.5...
A child pushes her friend (m = 25 kg) located at a radius r = 1.5 m on a merry-go-round (rmgr = 2.0 m, Imgr = 1000 kg*m2) with a constant force F = 90 N applied tangentially to the edge of the merry-go-round (i.e., the force is perpendicular to the radius). The merry-go-round resists spinning with a frictional force of f = 10 N acting at a radius of 1 m and a frictional torque τ = 15 N*m...
12)
Suppose that an Iowa class battleship has mass around 52,000
metric tons (52,000,000 kg) and a k-value in the equation
of about 60,000 kg/s, where v is the ship's velocity,
is the initial velocity, m is the mass, k is a
constant of proportionality, and t is time. Assume that the ship
loses power when it is moving at a speed of 9 m/s
a.
About how far will the ship coast before it is dead in the
water?...
c) 353 J 13. A 200 kg roller coaster starts from 50 m above the ground. (a) 5 It falls toward the ground with out any friction then once it ((c) reaches the ground level, the brakes are applied over 30 m 19. A in order to bring the coaster to a complete stop. How much ms-1 work is done by the brakes? 20 N (a) 10 x10 J (c)-10 x10 J 14. A 7 kg ball is dropped from...
---O (11011 0 JOUUDIO m w your nand)? t= sec = _min (keep 2 significant digits in your answers to this problem). Long range big guns can shoot a shell at the muzzle speed about 1.50 km/sec. How far can this shell go if shot directly up? h= km= miles. How long would it be in the air? t = sec = min :) If there were no air drag, at what speed would raindrops hit the ground when they...
Problem number 8,14,&20.
11. A softball player hits the ball and starts running toward first 21. I Which of the following moti base. Draw a motion diagram, using the particle model, show- ing her velocity vectors during the first few seconds of her run. diagram of Figure Q1.21? A. An ice skater gliding acros B. An airplane braking to a s C. A ear pulling away from a D. A pool ball bouncing off 12. A child is sledding on...
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...
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