A sled slides from rest down an icy slope. Measurements taken from a video show that...
A sled slides from rest down an icy slope. Measurements taken from a video show that the distance from the starting point to the sled at various times is as follows: Time (s) Distance from starting point (m) 0 0 0.50 0.36 1.0 1.3 1.5 3.2 2.0 5.7 2.5 8.8 Determine the approximate acceleration of the sled, assuming it to be constant. Express your answer to two significant figures and include appropriate units.
Homework Answers
Add Answer to:
A sled slides from rest down an icy slope. Measurements taken
from a video show that...
Problem 4 A child on a sled slides (starting from rest) down an icy slope that...
Problem 4 A child on a sled slides (starting from rest) down an icy slope that makes an angle of 15 with the horizontal. After sliding 20 m down the slope, the child enters a flat, slushy region, where she slides for 2.0s with a constant negative acceleration of -1.5 m/s with respect to her direction of motion. She then slides up another icy slope that makes a 20 angle with the horizontal. (a) How fast was the child going...
2. Starting from rest, a block of mass m slides down a frictionless incline at angle...
2. Starting from rest, a block of mass m slides down a frictionless incline at angle θ(0◦ < θ < 90◦) where it runs into a spring of spring constant k. When the block momentarily stops, it has compressed the spring by distance x. Find expressions for (a) the distance the block slides down the incline from when it is released to when it momentarily stops (b) the distance between the point of the first block-spring contact and the point...
A disk of radius r and mass m rolls down (pure roll) a incline from rest at point A as shown in Figure. When the center...
A disk of radius r and mass m rolls down (pure roll) a incline from rest at point A as shown in Figure. When the center of the disk pass the mid-point (25) between A and B, the total angular momentum of the disk relative to point is 0. What is the ratio a/r? Moment of Inertia for disk: I = mr2 A. 2.0<a/r <2.5 B. 1.5<a/r <2.0 C.0.5<a/T <1.0 D.2.5<a/r <3.0 E. 3.0<a/r <3.5 F.0.0< a/r <0.5 G. 1.0</<1.5
Just investigation 1 Exploring the electric field of point charges Use PHET interactive CHARGES AND FIELDS....
Just investigation 1
Exploring the electric field of point charges Use PHET interactive CHARGES AND FIELDS. Investigation 1: Electric field due to single charges 1. Use 3 negative -1 nC charges on top of each other to make a point charge 41 = -3.0 nc on the left(ish) side of the grid, and note this point as the origin. 91 X 0 1.0 m 5.0 m 2. Use the field sensor to measure and record the electric field Eix due...
4.0 m Question 4: A 2.0 kg particle slides down from rest from position A. When...
4.0 m Question 4: A 2.0 kg particle slides down from rest from position A. When it reaches B, it enters a rough horizontal segment with f4k-0.20, and eventually comes to rest at D. The surface from A to B is frictionless, and point A is located 4.0 m above the ground (a) Draw a free body diagram (FBD) for the particle at A (b) Draw a free body diagram (FBD) for the particle at C (c) Is the total...
The mass of the cart is 0.365 kg. The rest of the data can be obtained from the graph above. All answers below must be...
The mass of the cart is 0.365 kg. The rest of the data can be obtained from the graph above. All answers below must be correct to 3 significant figures. Units are required if not stated. What the final speed of the cart predicted by the work done by the rubber band, assuming that friction negligible? Vpred What the percent difference between between the predicted and measured final speed, expressed as a percent of the measured speed? Percent difference between...
• 1. What are the quarterly growth rates (Percentage Change From Preceding Period in Real Gross...
• 1. What are the quarterly growth rates (Percentage Change From Preceding Period in Real Gross Domestic Product) for the U.S. economy for the last six quarters? Report those numbers in your submission 2. What is the average of those 6 quarters? . 3. Is the average of those growth rates above or below the long-run U.S. annual growth rate of 3.5 percent? Bureau of Economke Analysis Table 1.1.1. Percent Change From Preceding Period in Real Gross Domestic Product Percent...
PLEASE EXPLAIN ALL ANSWERS 3 kg vertically cing is 10 kg g is used to frictionless...
PLEASE EXPLAIN ALL ANSWERS
3 kg vertically cing is 10 kg g is used to frictionless maximum these ag is most 11. Three blocks, A, B, and C. of masses 1, 2, and 3 kg, respectively, are initially at rest on a frictionless surface as indicated in the figure above. What force has to be applied on block C 5= 200 mis? to accelerate the three blocks at 2 m/s? (A) 0.33 N (2) +22) 4362) 16 V=20mis (B) 1.5...
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...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
Problem 4 A child on a sled slides (starting from rest) down an icy slope that makes an angle of 15 with the horizontal. After sliding 20 m down the slope, the child enters a flat, slushy region, where she slides for 2.0s with a constant negative acceleration of -1.5 m/s with respect to her direction of motion. She then slides up another icy slope that makes a 20 angle with the horizontal. (a) How fast was the child going...
A disk of radius r and mass m rolls down (pure roll) a incline from rest at point A as shown in Figure. When the center of the disk pass the mid-point (25) between A and B, the total angular momentum of the disk relative to point is 0. What is the ratio a/r? Moment of Inertia for disk: I = mr2 A. 2.0<a/r <2.5 B. 1.5<a/r <2.0 C.0.5<a/T <1.0 D.2.5<a/r <3.0 E. 3.0<a/r <3.5 F.0.0< a/r <0.5 G. 1.0</<1.5
Just investigation 1
Exploring the electric field of point charges Use PHET interactive CHARGES AND FIELDS. Investigation 1: Electric field due to single charges 1. Use 3 negative -1 nC charges on top of each other to make a point charge 41 = -3.0 nc on the left(ish) side of the grid, and note this point as the origin. 91 X 0 1.0 m 5.0 m 2. Use the field sensor to measure and record the electric field Eix due...
4.0 m Question 4: A 2.0 kg particle slides down from rest from position A. When it reaches B, it enters a rough horizontal segment with f4k-0.20, and eventually comes to rest at D. The surface from A to B is frictionless, and point A is located 4.0 m above the ground (a) Draw a free body diagram (FBD) for the particle at A (b) Draw a free body diagram (FBD) for the particle at C (c) Is the total...
The mass of the cart is 0.365 kg. The rest of the data can be obtained from the graph above. All answers below must be correct to 3 significant figures. Units are required if not stated. What the final speed of the cart predicted by the work done by the rubber band, assuming that friction negligible? Vpred What the percent difference between between the predicted and measured final speed, expressed as a percent of the measured speed? Percent difference between...
• 1. What are the quarterly growth rates (Percentage Change From Preceding Period in Real Gross Domestic Product) for the U.S. economy for the last six quarters? Report those numbers in your submission 2. What is the average of those 6 quarters? . 3. Is the average of those growth rates above or below the long-run U.S. annual growth rate of 3.5 percent? Bureau of Economke Analysis Table 1.1.1. Percent Change From Preceding Period in Real Gross Domestic Product Percent...
PLEASE EXPLAIN ALL ANSWERS
3 kg vertically cing is 10 kg g is used to frictionless maximum these ag is most 11. Three blocks, A, B, and C. of masses 1, 2, and 3 kg, respectively, are initially at rest on a frictionless surface as indicated in the figure above. What force has to be applied on block C 5= 200 mis? to accelerate the three blocks at 2 m/s? (A) 0.33 N (2) +22) 4362) 16 V=20mis (B) 1.5...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
Most questions answered within 3 hours.
-
Create a 32-run crossed array design with six control factors
and two noise factors such that...
asked 46 minutes ago -
A 500g sample of sand from source A has the following amounts
retained on each sieve....
asked 47 minutes ago -
In
your own words, please explain the essay by John Keynes wrote "The
End of Laissez...
asked 47 minutes ago -
How are the matrix and pixels related? Why are smaller
pixels better for diagnostic quality?
asked 49 minutes ago -
2. An AC generator has 80 rectangular loops on
its armature. Each loop is 11 cm...
asked 51 minutes ago -
Please help me with this question. Consider Aldi’s current and
potential geographic markets (see Exhibit 4...
asked 54 minutes ago -
What are the main components of the fermentation process and
give an explanation of each? Include...
asked 1 hour ago -
Explain which types of cells in the body (belonging to which
organs, etc.) are sensitive to...
asked 1 hour ago -
A single cable supports an 703-kg elevator car. What is the
tension in the cable when...
asked 1 hour ago -
among the three different ways to link CSS specifications to an
HTML document (inline CSS, document...
asked 1 hour ago -
(1) Write the net ionic equation for the reaction that occurs
when equal volumes of 0.191...
asked 2 hours ago -
On the night of April 18, 1775, a signal was to be sent from the
Old...
asked 1 hour ago