d) what is its velocity when it strikes your hand?
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d) what is its velocity when it strikes your hand?
(1 point) 0 Rank in order,...
(1 point) An elastic bone is compressed 10 μm by a student's weight. The student picks...
(1 point) An elastic bone is compressed 10 μm by a student's weight. The student picks up a very heavy backpack and the sam e bone compressed by an extra 5 um. (a) How many times heavier or lighter is the student than her backpack? mstudent 1.5 (b) How much more potential energy is stored in the compressed bone with the backpack on than without? withPack4 mbackpack (1 point) Two bananas have very similar shapes, but one is "twice as...
Please calculate and explain question (b). (1 point) A car traveling at 80 km/h applies its...
Please calculate and explain question (b).
(1 point) A car traveling at 80 km/h applies its brakes and comes to rest in 4.5 s. (a) Convert 80 km/h to units of m/s. 80 km/h 22.22 (b) Assuming a constant acceleration, calculate its value. acceleration 4.94 (c) How far did the car travel while the brakes were on? distance50 m/s m/s2
4. A rocket was traveling straight upward at a constant velocity vo- 80 m/s before it...
4. A rocket was traveling straight upward at a constant velocity vo- 80 m/s before it runs out of fucl at a height h- 8000 m. The rocket then continues its vertical motion reaching its maximum height at point A, before turning down in a free fall motion back to ground. (Take g -10 m/s) (a) Determine the maximum height reached by the rocket with respect to O (b) How long - from O- does it take the rocket to...
Please show all work! 1. A train is traveling down a straight track at 20 m/s...
Please show all work!
1. A train is traveling down a straight track at 20 m/s when the engineer applies the brakes, resulting in an acceleration of 21.0 m/s2 as long as the train is in motion. How far does the train move during a 40-s time interval starting at the instant the brakes are applied? 2.A balli thrown vertically upward with a speed of 25.0 m/s.(o) How high does it rise? (b) How long does it take to reach...
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees...
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees a child run into the road. The driver applies her brakes until the child returns to the sidewalk and then accelerates to resume her original speed of 54 km/h; the acceleration record of the car is shown in the figure. Assuming x = 0) when t = 0, determine (a) the time t, at which the velocity is again 54 km/h, (b) the position...
What must be your average speed in order to travel 350 km in 5.15 h? A)...
What must be your average speed in order to travel 350 km in 5.15 h? A) 66.0 km/h B) 67.0 km/h C) 68.0 km/h D) 69.0 km/h An airplane increases its speed at the average rate of 15 m/s^2. How much time does it take to increase its speed from 100 m/s to 160 m/s? A) 17 s B) 0.058 s C)4.0s D) 0.25 s What is the mass of an object that experiences a gravitational force of 685 N...
Supplementary Sheet Velocity Grade & Physics Use the following formulas to perform your calculations: Distance Speed...
Supplementary Sheet Velocity Grade & Physics Use the following formulas to perform your calculations: Distance Speed x Time Time Speed Speeds Distance Time 1. Ali is driving along the highway from Tyre to Tripoli. He Travels 150Km in 3 hours a. Calculate the average speed of the car in Km/h b. What is the speed in m/s 2. A car travels with an average speed of 55 km/h for 2.5 hours. What is the distance covered by the car? How...
Part 2: Written Response Questions Your method of solution must be clearly presented and valid in...
Part 2: Written Response Questions Your method of solution must be clearly presented and valid in order to obtain full marks each question. Remember units and setting up positive directions (unless otherwise stated in the question). 1. A student walking at a constant speed takes 21.5 minutes to walk 1600 m southwards towards a bus stop. At this instant, a bus stops and picks up the student, and drives to 3.5 km North to the college at an average speed...
The speed of light, by the u symbol c, has a value, to two significant figures,...
The speed of light, by the u symbol c, has a value, to two significant figures, of 3.0 x 108 m/s. (a) How long does it take for light to travel from the Sun to Earth, a distance of 1.5 x 10!1 m? (b) How Jong does it take light to travel from the moon to Earth, a distance of 3.8 x 108 m? 1.0 In free light travels in a straight line at constant speed, c g along a...
which option is correct 30) The graph in Fig. 2-3 plots the velocity of two cars...
which option is correct
30) The graph in Fig. 2-3 plots the velocity of two cars (A and B) along the same straight road. During the time interval shown, which car is AHEAD? A) Car A Car ย C) insuffilcient information 31) The graph in Fig. 2-3 plots the velocity of two cars (A and B) along the same straight road. Which car reverses direction? Car A C) insufficient information O) both cars A & B E) neither car A...
(1 point) An elastic bone is compressed 10 μm by a student's weight. The student picks up a very heavy backpack and the sam e bone compressed by an extra 5 um. (a) How many times heavier or lighter is the student than her backpack? mstudent 1.5 (b) How much more potential energy is stored in the compressed bone with the backpack on than without? withPack4 mbackpack (1 point) Two bananas have very similar shapes, but one is "twice as...
Please calculate and explain question (b).
(1 point) A car traveling at 80 km/h applies its brakes and comes to rest in 4.5 s. (a) Convert 80 km/h to units of m/s. 80 km/h 22.22 (b) Assuming a constant acceleration, calculate its value. acceleration 4.94 (c) How far did the car travel while the brakes were on? distance50 m/s m/s2
4. A rocket was traveling straight upward at a constant velocity vo- 80 m/s before it runs out of fucl at a height h- 8000 m. The rocket then continues its vertical motion reaching its maximum height at point A, before turning down in a free fall motion back to ground. (Take g -10 m/s) (a) Determine the maximum height reached by the rocket with respect to O (b) How long - from O- does it take the rocket to...
Please show all work!
1. A train is traveling down a straight track at 20 m/s when the engineer applies the brakes, resulting in an acceleration of 21.0 m/s2 as long as the train is in motion. How far does the train move during a 40-s time interval starting at the instant the brakes are applied? 2.A balli thrown vertically upward with a speed of 25.0 m/s.(o) How high does it rise? (b) How long does it take to reach...
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees a child run into the road. The driver applies her brakes until the child returns to the sidewalk and then accelerates to resume her original speed of 54 km/h; the acceleration record of the car is shown in the figure. Assuming x = 0) when t = 0, determine (a) the time t, at which the velocity is again 54 km/h, (b) the position...
What must be your average speed in order to travel 350 km in 5.15 h? A) 66.0 km/h B) 67.0 km/h C) 68.0 km/h D) 69.0 km/h An airplane increases its speed at the average rate of 15 m/s^2. How much time does it take to increase its speed from 100 m/s to 160 m/s? A) 17 s B) 0.058 s C)4.0s D) 0.25 s What is the mass of an object that experiences a gravitational force of 685 N...
Supplementary Sheet Velocity Grade & Physics Use the following formulas to perform your calculations: Distance Speed x Time Time Speed Speeds Distance Time 1. Ali is driving along the highway from Tyre to Tripoli. He Travels 150Km in 3 hours a. Calculate the average speed of the car in Km/h b. What is the speed in m/s 2. A car travels with an average speed of 55 km/h for 2.5 hours. What is the distance covered by the car? How...
Part 2: Written Response Questions Your method of solution must be clearly presented and valid in order to obtain full marks each question. Remember units and setting up positive directions (unless otherwise stated in the question). 1. A student walking at a constant speed takes 21.5 minutes to walk 1600 m southwards towards a bus stop. At this instant, a bus stops and picks up the student, and drives to 3.5 km North to the college at an average speed...
The speed of light, by the u symbol c, has a value, to two significant figures, of 3.0 x 108 m/s. (a) How long does it take for light to travel from the Sun to Earth, a distance of 1.5 x 10!1 m? (b) How Jong does it take light to travel from the moon to Earth, a distance of 3.8 x 108 m? 1.0 In free light travels in a straight line at constant speed, c g along a...
which option is correct
30) The graph in Fig. 2-3 plots the velocity of two cars (A and B) along the same straight road. During the time interval shown, which car is AHEAD? A) Car A Car ย C) insuffilcient information 31) The graph in Fig. 2-3 plots the velocity of two cars (A and B) along the same straight road. Which car reverses direction? Car A C) insufficient information O) both cars A & B E) neither car A...
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