QUESTION 10 m/s2 ? An object moves with a constant speed of 428 m/s on a circular track of radius 21 m. What is the magnitude of the acceleration of the object: a: (Note: For fill in blank, I have set the unit for the answer. So, you just need to provide a number - Please write your numerical answer with all digits and do not use scientific notation. If you are not sure about the number of significant figures, you can keep the number of figures as many as possible - You will not be punished for doing this.)

QUESTION 10 m/s2 ? An object moves with a constant speed of 428 m/s on a circular track of radius 21 m. What is the magnitude of the acceleration of the object: a: (Note: For fill in blank, I have set the unit for the answer. So, you just need to provide a number - Please write your numerical answer with all digits and do not use scientific notation. If you are not sure about the number of significant figures, you can keep the number of figures as many as possible - You will not be punished for doing this.)

Name: OC equal to the magnitude of the weight of the elevator.O D. None of
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Description: OC equal to the magnitude of the weight of the elevator.O D. None of the aboveQUESTION 10m/s2 ?An object moves with a constant speed of 428 m/s on a circular track of radius 21 m. What is the magnitude of the acceleration of the object: a=(Note: For

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter3: Vectors

Section: Chapter Questions

Problem 25PQ: Carolyn rides her bike 40.0 south of west for 5.40 miles as illustrated in Figure P3.25. What is the...

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Can someone please help with the following questions? I've attached the pictures below. I appreciate it! For the problem that asks about the meaning of of p0, I already have the answer for that, I just need help with part b.
Problem Solving. Do not round off in your calculations. Round off to 2 DECIMAL PLACES in your final answers only. Units will be provided on every problem, type only the magnitude. DO NOT TYPE ANY UNITS IN YOUR ANSWERS. A race car starts from rest and travels east along a straight and level track. For the first 5.0 s of the car's motion, the eastward component of the car's velocity is given by: v() = (0.86) What is the acceleration of the car when vx=12.0 m/s? Answer in m/s^2. Back Next Page 3 of 5 Never submit passwords through Google Forms.
A projectile is fired vertically from the ground with an initial velocity of 220 ft/sec. The initial acceleration is a=−32 ft/sec^2. 1. What is the velocity equation? Use t as the variable and v for the velocity. 2. What is the displacement equation? Use t as the variable and s as the displacement. 3. What was the velocity at t=5 seconds? 4. What time did the projectile reach its maximum height? (Hint: ?=0) Round to 1 decimal place. 5. What was the maximum height? Round to 1 decimal place.
1 mile = 1609 m. ! hour = 60 minutes. I minute = 60 seconds. Note: these basic conversion factors will be given to you in exams if needed. Part A-What average speed of the rest of the trip is needed if the car's overall average speed of the entire trip is 51.82 mph ? Keep two digits after the decimal point. Be careful: in general we CAN'T write Aveage speed of entire trip = (1/2) (1st segment speed + 2nd segment speed)
An object has an acceleration defined by the equation a=5t+4 (m/s^2) where "t" is in seconds. The initial velocity of the object is -10 m/s and started at a position s = 40m. 1. How much time is needed for the particle to reach a velocity equal to zero? Express your answer in unit of second. 2. What is the position of the object when it reaches zero velocity?
A stone is thrown vertically upward with a speed of 17.6 m/sm/s from the edge of a cliff 75.0 mm high. A.)How much later does it reach the bottom of the cliff? Express your answer to three significant figures and include the appropriate units. B.)What is its speed just before hitting? Express your answer to three significant figures and include the appropriate units. C.)What total distance did it travel? Express your answer to three significant figures and include the appropriate units.
A ball is thrown downward from the top of a 300 ft tall building with an initial velocity of 100 ft/s. How fast is the ball traveling when it hits the ground below? How long did it take the ball to hit the ground? Round to to decimal places. draw a simple sketch. Make a list of all given values, units, and the variables they represent. State at the start of the problem which direction is positive. Write the general form of the equation you are going to use. Insert the know values and then solve the equation.
A player passes a basketball to another player who catches it at the same level from which it was thrown. The initial speed of the ball is 7.2 m/s, and it travels a distance of 4.7 m a.) What was the initial direction of the ball? (Express your answer using two significant figures. If there is more than one answer, separate them by a comma) b.) What was its time of flight? (Express your answer using six significant figures. If there is more than one answer, separate them by a comma)
Let's say you ride your bike from your house to your friend's house. To get there uou have to go 4.00 miles south, 8.00 miles west, then 6.00 miles north. This trip takes 32.5 minutes.a. What is your average speed for the trip in miles per minute? b. What is your average velocity for the trip in miles per minute?
A cat walks in a straight line, which we shall call the -axis, with the positive direction to the right. As an observant physicist, you make measurements of this cat's motion and construct a graph of the feline's velocity as a function of time (Figure 1). I. Calculate the area under the graph between t = 0 and t = 6.0 s. (Express your answer to two significant figures and include the appropriate units.) II. For the time interval t = 0 to t = 6.0 s, what is the magnitude of the average velocity of the cat? (Express your answer to two significant figures and include the appropriate units.) III. Use constant-acceleration equations to calculate the distance the cat travels in this time interval. (Express your answer to two significant figures and include the appropriate units.)
A driver needs to make a delivery to an office that is 30 km away. The driver has traveled for 45 minutes west down a straight road at 50 km/h. a. Has the driver traveled far enough to reach the office? Support your response. b. Assume the driver has gone far enough and is traveling on the correct road. If he has not yet seen the business, what should he do to make the delivery? Explain your reasoning. Plzzz help
While walking to school, Jaime's distance from home (in miles) was s(t) = 3t, where t is measured in hours. Sketch a graph of his distance. If it takes Jaime 30 minutes to walk to school, what is his average velocity? Explain how you got your answer. a. While walking home, Jaime walks so that his velocity (in miles per hour) is v(t) = -2t, where t is measured in hours. How long does it take him to get home? b.