A Porsche sports car can accelerate at 9.3 m/s2. ONLY NEED HELP WITH C AND DON'T...
A Porsche sports car can accelerate at 9.3 m/s2. ONLY NEED HELP WITH C AND DON'T KNOW WHY IT'S INCORRECT
(a) Is this acceleration greater than, less than, or equal to 9.3 km/s2? Less Than: Your answer is correct.
(b) Determine the acceleration of a Porsche in ft/s2. 30.50 Correct: Your answer is correct. ft/s2
(c) Determine its acceleration in km/h2. 395280 Incorrect: Your answer is incorrect. km/h2 WHY IS THIS WRONG, AND WHAT IS THE CORRECT ANSWER?
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A Porsche sports car can accelerate at 9.3 m/s2. ONLY NEED HELP
WITH C AND DON'T...
A chauffer is driving a car along a straight road at a c accelerate 3.00 m/s2...
A chauffer is driving a car along a straight road at a c accelerate 3.00 m/s2 to overtake him. Assume that the officer maintains this acceleration. speed of 23.0 m/s. Just as he passes a law officer parked along the side of the road, the officer starts to Determine the time it takes the officer to reach the chauffer (in s). 15.3 (a) (b) Find the speed of the officer as he overtakes the chauffer (in m/s) m/s Find the...
2. A car starts from rest at a stop sign. It accelerates at 2.5 m/32 for...
2. A car starts from rest at a stop sign. It accelerates at 2.5 m/32 for until it reaches a speed of 50 km/hr. (1 km/hr .278 m/s) (a) Draw a picture of this problem (not a motion diagram but a picture!) clearly indicate on your picture where you call x-0, t-0 i.e. establish a coordinate ystem. Label it with symbols representing initial positon, initial velocity, final position final time, final velocity and acceleration and include all the information you...
An electric drag racer is much like its piston engine counterpart, but instead it is powered...
An electric drag racer is much like its piston engine
counterpart, but instead it is powered by an electric motor running
off of onboard batteries. These vehicles are capable of covering a
14 mile straight-line track in 11 s .
I'm getting the correct answers but not sure where I'm going
wrong with the rounding?
Part A Determine the acceleration of the drag racer in units of m/s2. (Assume that the acceleration is constant throughout the race.) Express your answer...
Dr. C. #2. (PHYS 121 engineering design exercise) You have seen why cars inherently accelerate qu...
Dr. C. #2. (PHYS 121 engineering design exercise) You have seen why cars inherently accelerate quicker in a straight line and have better fuel mileage than an SUV with the same engine; it's because of air drag and the smaller frontal area and better drag coefficient of the car. Now let's think about why cars handle (take turns, change lanes and make other quick maneuvers) better than an SUV. We'l1 simplify our analysis by considering a vehicle of mass M...
response differs from the correct answer by more than 100%, m/s Your Need Help? Rend R...
response differs from the correct answer by more than 100%, m/s Your Need Help? Rend R 8 -2.5 poi In a test run, a certain car accelerates uniformly from zero to 22.6 m/s in 2.80 s. (a) What is the magnitude of the car's acceleration? m/s2 (b) How long does it take the car to change its speed from 11.3 m/s to 22.6 m/s? (c) will doubling the time always double the change in speed? Yes No This answer has...
I need help solving theses problems please and thank you. 1. When you drop a ball...
I need help solving theses problems please and thank
you.
1. When you drop a ball it accelerates downward at 9.8 m/s. If you instead throw it downward, then its acceleration immediately after leaving your hand, assuming no air resistance, is A. 9.8 m/s2 B. More than 9.8 m/s C. Less than 9.8 m/s D. Cannot say, unless the speed of the throw is given. 2. A heavy rock and a light rock in free fall (zero air resistance) have...
IMPORTANT: I don't need help with "a". However, I do need help with b&c IMPORTANT: I...
IMPORTANT: I don't need help with "a". However, I do need help
with b&c
IMPORTANT: I understand that there's a walkthrough given bellow.
However, I do not understand the walkthrough given for b&c.
Part B
- Why does E(x)+E(y)=2u (2 mew)?
-What is this?: I honestly have no idea what it
is. Please explain to me what it is and what its significance is
within the problem.
-This may be the same thing as the symbol above, but just in...
need the “exercise” answered. thanks PRACTICE IT Use the worked example above to help you solve this problem. A block with mass m 4.30 kg and a ball with mass m2 = 7.50 kg are connected by a lig...
need the “exercise” answered. thanks
PRACTICE IT Use the worked example above to help you solve this problem. A block with mass m 4.30 kg and a ball with mass m2 = 7.50 kg are connected by a light string that passes over a frictionless pulley, as shown in figure (a). The coefficient of kinetic friction between the block and the surface is 0.300. (a) Find the acceleration of the two objects and the tension in the string. a= 5.16...
I have no idea why question c is wrong. Please help me Panth My B Ceng...
I have no idea why question c is wrong. Please help me
Panth My B Ceng ← → C i https://wwww Ass stadep 20528633 At t o, one toy car is set rolling on a straight track with initial position 15.5 om, initial velocity 3.4 om/s, and constant acceleration 2 00 cme At the same moment, another toy car is set rolling on an adjacent track with initial position 9.0 cm, initial velocity 4.80 cm/s, and constant zero acceleration a)...
I need help with the last part of this problem - (d) Would it be reasonable...
I need help with the last part of this problem - (d) Would it be reasonable to use the least-squares regression line to predict the miles per gallon of a hybrid gas and electric car? Why or why not? - Thank you so much! An engineer wants to determine how the weight of a gas-powered car, x, affects gas mileage, y. The accompanying data represent the weights of various domestic cars and their miles per gallon in the city for...
A chauffer is driving a car along a straight road at a c accelerate 3.00 m/s2 to overtake him. Assume that the officer maintains this acceleration. speed of 23.0 m/s. Just as he passes a law officer parked along the side of the road, the officer starts to Determine the time it takes the officer to reach the chauffer (in s). 15.3 (a) (b) Find the speed of the officer as he overtakes the chauffer (in m/s) m/s Find the...
2. A car starts from rest at a stop sign. It accelerates at 2.5 m/32 for until it reaches a speed of 50 km/hr. (1 km/hr .278 m/s) (a) Draw a picture of this problem (not a motion diagram but a picture!) clearly indicate on your picture where you call x-0, t-0 i.e. establish a coordinate ystem. Label it with symbols representing initial positon, initial velocity, final position final time, final velocity and acceleration and include all the information you...
An electric drag racer is much like its piston engine
counterpart, but instead it is powered by an electric motor running
off of onboard batteries. These vehicles are capable of covering a
14 mile straight-line track in 11 s .
I'm getting the correct answers but not sure where I'm going
wrong with the rounding?
Part A Determine the acceleration of the drag racer in units of m/s2. (Assume that the acceleration is constant throughout the race.) Express your answer...
Dr. C. #2. (PHYS 121 engineering design exercise) You have seen why cars inherently accelerate quicker in a straight line and have better fuel mileage than an SUV with the same engine; it's because of air drag and the smaller frontal area and better drag coefficient of the car. Now let's think about why cars handle (take turns, change lanes and make other quick maneuvers) better than an SUV. We'l1 simplify our analysis by considering a vehicle of mass M...
response differs from the correct answer by more than 100%, m/s Your Need Help? Rend R 8 -2.5 poi In a test run, a certain car accelerates uniformly from zero to 22.6 m/s in 2.80 s. (a) What is the magnitude of the car's acceleration? m/s2 (b) How long does it take the car to change its speed from 11.3 m/s to 22.6 m/s? (c) will doubling the time always double the change in speed? Yes No This answer has...
I need help solving theses problems please and thank
you.
1. When you drop a ball it accelerates downward at 9.8 m/s. If you instead throw it downward, then its acceleration immediately after leaving your hand, assuming no air resistance, is A. 9.8 m/s2 B. More than 9.8 m/s C. Less than 9.8 m/s D. Cannot say, unless the speed of the throw is given. 2. A heavy rock and a light rock in free fall (zero air resistance) have...
IMPORTANT: I don't need help with "a". However, I do need help
with b&c
IMPORTANT: I understand that there's a walkthrough given bellow.
However, I do not understand the walkthrough given for b&c.
Part B
- Why does E(x)+E(y)=2u (2 mew)?
-What is this?: I honestly have no idea what it
is. Please explain to me what it is and what its significance is
within the problem.
-This may be the same thing as the symbol above, but just in...
need the “exercise” answered. thanks
PRACTICE IT Use the worked example above to help you solve this problem. A block with mass m 4.30 kg and a ball with mass m2 = 7.50 kg are connected by a light string that passes over a frictionless pulley, as shown in figure (a). The coefficient of kinetic friction between the block and the surface is 0.300. (a) Find the acceleration of the two objects and the tension in the string. a= 5.16...
I have no idea why question c is wrong. Please help me
Panth My B Ceng ← → C i https://wwww Ass stadep 20528633 At t o, one toy car is set rolling on a straight track with initial position 15.5 om, initial velocity 3.4 om/s, and constant acceleration 2 00 cme At the same moment, another toy car is set rolling on an adjacent track with initial position 9.0 cm, initial velocity 4.80 cm/s, and constant zero acceleration a)...
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