01: Select the right answer for the following: The graph below describes the relationship between velocity and time for a moving object. Use this graph for questions 1 through 6. v (m/s) Ar t (s) 11 1. What is the acceleration at time t= 1 s? (A) 4 m/s? (B) 2 m/s? (C) -2 m/s? (D) -4 m/s? 2. What is the acceleration at time t = 8 s? (A) 4 m/s2 (В) -2 m/'s (C) -4 m/s (D) 0 m/s² 3. What is the acceleration at time t = 6 s? (A) I m/s² (B) 2 m/s? (C) -4 m/s² (D) 0 m/s? 4. What is the total displacement for the entire trip? (A) 18 m (B) 12 m (C) 6 m (D) 30 m 5. What is the total traveled distance for the entire trip? (A) 18 m (В) 12 m (C) 6 m (D) 30 m 6. Between what times does the object approach the origin at the constant speed? (A) 2 sec to 5 sec (B) 6 sec to 7 sec (C) 7 sec to 9 sec (D) 9 sec to 10 sec 7. An object is dropped from rest from the top of a 400 m cliff on earth. If the air resistance is negligible, what is the distance the object travels during the first 6 sec of its fill? (A) 30 m (B) 60 m (C) 120 m (D) 180 m

01: Select the right answer for the following: The graph below describes the relationship between velocity and time for a moving object. Use this graph for questions 1 through 6. v (m/s) Ar t (s) 11 1. What is the acceleration at time t= 1 s? (A) 4 m/s? (B) 2 m/s? (C) -2 m/s? (D) -4 m/s? 2. What is the acceleration at time t = 8 s? (A) 4 m/s2 (В) -2 m/'s (C) -4 m/s (D) 0 m/s² 3. What is the acceleration at time t = 6 s? (A) I m/s² (B) 2 m/s? (C) -4 m/s² (D) 0 m/s? 4. What is the total displacement for the entire trip? (A) 18 m (B) 12 m (C) 6 m (D) 30 m 5. What is the total traveled distance for the entire trip? (A) 18 m (В) 12 m (C) 6 m (D) 30 m 6. Between what times does the object approach the origin at the constant speed? (A) 2 sec to 5 sec (B) 6 sec to 7 sec (C) 7 sec to 9 sec (D) 9 sec to 10 sec 7. An object is dropped from rest from the top of a 400 m cliff on earth. If the air resistance is negligible, what is the distance the object travels during the first 6 sec of its fill? (A) 30 m (B) 60 m (C) 120 m (D) 180 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

01: Select the right answer for the following:
The graph below describes the relationship between velocity and time for a moving object.
Use this graph for questions 1 through 6.
v (m/s)
Ar
t (s)
11
1. What is the acceleration at time t= 1 s?
(A) 4 m/s? (B) 2 m/s?
(C) -2 m/s?
(D) -4 m/s?
2. What is the acceleration at time t = 8 s?
(A) 4 m/s2
(В) -2 m/'s
(C) -4 m/s
(D) 0 m/s²
3. What is the acceleration at time t = 6 s?
(A) I m/s²
(B) 2 m/s?
(C) -4 m/s²
(D) 0 m/s?
4. What is the total displacement for the entire trip?
(A) 18 m
(B) 12 m
(C) 6 m
(D) 30 m
5. What is the total traveled distance for the entire trip?
(A) 18 m
(В) 12 m
(C) 6 m
(D) 30 m
6. Between what times does the object approach the origin at the constant speed?
(A) 2 sec to 5 sec (B) 6 sec to 7 sec (C) 7 sec to 9 sec
(D) 9 sec to 10 sec
7. An object is dropped from rest from the top of a 400 m cliff on earth. If the air resistance
is negligible, what is the distance the object travels during the first 6 sec of its fill?
(A) 30 m
(B) 60 m
(C) 120 m
(D) 180 m

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