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3. Diagrams, networks, models and commuting [40 marks) commuting by car from north of the city...
A stone is thrown vertically upward with speed of 12.5 from the edgae of ...... please...
A stone is thrown vertically upward with speed of 12.5 from
the edgae of ......
please show all the steps. problem #81
ch inter- 1 km/h -d limit, e lights alculate 81. A stone is thrown vertically upward with a speed of 12.5 m/s from the edge of a cliff 75.0 m high (Fig. 2-49). (a) How much later does it reach the bottom of y=0 the cliff? (b) What is its speed just before hitting? (c) What total distance...
When the drivers pass each other, the driver of the red car is to toss a package of contraband to the other driver. To c...
When the drivers pass each other, the driver of the red car is
to toss a package of contraband to the other driver. To catch the
toss on video, one of the cameras must be set up near the point
where the toss will be made. When “action” is yelled out on the
set, the initial separation between the drivers will be 200 m, the
red car will accelerate from rest at a constant 6.12
m/s2, starting at xr =...
12-10. Car A starts from rest at t-0 and travels along a straight road with a...
12-10. Car A starts from rest at t-0 and travels along a straight road with a constant acceleration of 3 m/s until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when-0, car B located 2000 m down the road is traveling towards A at a constant speed of 20 m/s. Determine the distance travelled by car A when they pass each other. 20 m/s 2000 m 12-11. A particle travels along a straight line with...
75 To stop a car, first you require a certain reaction time to be 2The psition...
75 To stop a car, first you require a certain reaction time to be 2The psition of a particle moving along the x sxis depends on gin braking: then the car slows at a constant rate. Suppose that the the time according to the equationxbP, where a is in me total distance moved by your car during these two phases is 56.7 m lers and rin secondh What are the units of (a) constant e and (b) con- when its...
Questions 1 &2 This is a more challenging problem with constant acceleration. Simply plugging numbers into...
Questions 1 &2
This is a more challenging problem with constant acceleration. Simply plugging numbers into an equation gets us nowhere, so something extra is required. On a movie set, a red car and a green car are to move toward each other on opposite sides of a highway lane divider line, as indicated in the figure. Green car Example 2.4.4 Figure 1 When the drivers pass each other, the driver of the red car is to toss a package...
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...
pls answer question 3-4 40. Heart-lung machines and artificial kidney machines BIO employ electromagnetic blood pumps....
pls
answer question 3-4
40. Heart-lung machines and artificial kidney machines BIO employ electromagnetic blood pumps. The blood is con- QIC fined to an electrically insulating tube, cylindrical in prac- S tice but represented here for simplicity as a rectangle of interior width w and height h. Figure P28.40 shows a rect- angular section of blood within the tube. Two electrodes fit into the top and the bottom of the tube. The potential difference between them establishes an electric current...
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...
please give anwers ? wuestion 01/20 Marks The vendita a ty and the price at the...
please give anwers ?
wuestion 01/20 Marks The vendita a ty and the price at the where relation when 2 A , what is the I (5 km/whereth theme of the n dia sention of the partie hectory tract with constant d ong the path that for a short distantes tromos rec ome the sandy ortoit vnity at instant on the cure Aybladet The Scenes pinned at and as a result of the constant prote dhes the peg For a...
1. For each of the following regression models, write down the X matrix and 3 vector....
1. For each of the following regression models, write down the X matrix and 3 vector. Assume in both cases that there are four observations (a) Y BoB1X1 + B2X1X2 (b) log Y Bo B1XiB2X2+ 2. For each of the following regression models, write down the X matrix and vector. Assume in both cases that there are five observations. (a) YB1XB2X2+BXE (b) VYBoB, X,a +2 log10 X2+E regression model never reduces R2, why 3. If adding predictor variables to a...
A stone is thrown vertically upward with speed of 12.5 from
the edgae of ......
please show all the steps. problem #81
ch inter- 1 km/h -d limit, e lights alculate 81. A stone is thrown vertically upward with a speed of 12.5 m/s from the edge of a cliff 75.0 m high (Fig. 2-49). (a) How much later does it reach the bottom of y=0 the cliff? (b) What is its speed just before hitting? (c) What total distance...
When the drivers pass each other, the driver of the red car is
to toss a package of contraband to the other driver. To catch the
toss on video, one of the cameras must be set up near the point
where the toss will be made. When “action” is yelled out on the
set, the initial separation between the drivers will be 200 m, the
red car will accelerate from rest at a constant 6.12
m/s2, starting at xr =...
12-10. Car A starts from rest at t-0 and travels along a straight road with a constant acceleration of 3 m/s until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when-0, car B located 2000 m down the road is traveling towards A at a constant speed of 20 m/s. Determine the distance travelled by car A when they pass each other. 20 m/s 2000 m 12-11. A particle travels along a straight line with...
75 To stop a car, first you require a certain reaction time to be 2The psition of a particle moving along the x sxis depends on gin braking: then the car slows at a constant rate. Suppose that the the time according to the equationxbP, where a is in me total distance moved by your car during these two phases is 56.7 m lers and rin secondh What are the units of (a) constant e and (b) con- when its...
Questions 1 &2
This is a more challenging problem with constant acceleration. Simply plugging numbers into an equation gets us nowhere, so something extra is required. On a movie set, a red car and a green car are to move toward each other on opposite sides of a highway lane divider line, as indicated in the figure. Green car Example 2.4.4 Figure 1 When the drivers pass each other, the driver of the red car is to toss a package...
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...
pls
answer question 3-4
40. Heart-lung machines and artificial kidney machines BIO employ electromagnetic blood pumps. The blood is con- QIC fined to an electrically insulating tube, cylindrical in prac- S tice but represented here for simplicity as a rectangle of interior width w and height h. Figure P28.40 shows a rect- angular section of blood within the tube. Two electrodes fit into the top and the bottom of the tube. The potential difference between them establishes an electric current...
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...
please give anwers ?
wuestion 01/20 Marks The vendita a ty and the price at the where relation when 2 A , what is the I (5 km/whereth theme of the n dia sention of the partie hectory tract with constant d ong the path that for a short distantes tromos rec ome the sandy ortoit vnity at instant on the cure Aybladet The Scenes pinned at and as a result of the constant prote dhes the peg For a...
1. For each of the following regression models, write down the X matrix and 3 vector. Assume in both cases that there are four observations (a) Y BoB1X1 + B2X1X2 (b) log Y Bo B1XiB2X2+ 2. For each of the following regression models, write down the X matrix and vector. Assume in both cases that there are five observations. (a) YB1XB2X2+BXE (b) VYBoB, X,a +2 log10 X2+E regression model never reduces R2, why 3. If adding predictor variables to a...
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