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A submarine sights a moving target at a distance of 820 meters. A torpedo is fired...
8. A projectile is fired from the origin in a straight line towards a rectangular target...
8. A projectile is fired from the origin in a straight line towards a rectangular target and hits it perpendicularly 2 seconds later. The vertices of the rectangle are (50,100,275), (100, 0, 275), (200,50, 150), and (150, 150, 150), where units are in meters. (a) At what point did the projectile hit the rectangle? (b) The projectile was trying to hit the center of the target. How accurate was it? (c) Assuming the projectile was moving at a constant speed,...
21) An antelope moving with a constant acceleration covers the distance between two points 70 m...
21) An antelope moving with a constant acceleration covers the distance between two points 70 m apart in 6 s. Its speed as it passes the second point is 15 m/s. What are a) its speed at the first point, and b) its acceleration? dtics.puf (64.6 KB) Page 2 -ZOOM + A car and truck start from rest at the same instant, with the car initially at some distance behind the truck. The truck has a constant acceleration of 2.1...
Frequently, a weapon must be fired at a target that is closer than the weapon's maximum...
Frequently, a weapon must be fired at a target that is closer than the weapon's maximum range. To hit such a target, a weapon has two possible launch angles (figure A): one higher than 45= (x) and one lower than 45- (C.). Although the displacement of the projectile is the same for the two angles, a projectile launched at y has a longer flight time and a higher peak position than one launched at 8. Usually, some tactical situation makes...
2. For which trip do the distance and displacement have the same magnitude? A. A dog...
2. For which trip do the distance and displacement have the same magnitude? A. A dog chases its tail in a circle. B. You walk around the block to your friend's house C. A drag racer accelerates down a straight track to the finish line D. A circus performer fired out of a cannon flies through the air 3. A skateboarder starts pushing from rest and accelerates at a constant rate of 1.2 m/s until she reaches a speed of...
A cat is walking along a hallway moving away from a sleeping dog. A graph of the distance between the cat and the...
A cat is walking along a hallway moving away from a sleeping dog. A graph of the distance between the cat and the dog as a function of time is shown to the right. A physics student uses 2) Distance, meters 20 the equation "rate times time equals distance" to calculate the speed of the cat at time 6 seconds: 16 12 distance / time 16.0 m/6s=2,667 m/s. rate 8 4 (a) What, if anything, is wrong with this calculation?...
4. Because parents are concerned that children are learning "wrong" science from TV you have been...
4. Because parents are concerned that children are learning "wrong" science from TV you have been asked to be a technical advisor for a new science fiction show. The show takes place on a space station at rest in deep space far away from any stars. In the plot, a vicious criminal (Alicia Badax) escapes from the space station prison. Alicia steals a small space ship and blasts off to meet her partners somewhere in deep space. If she is...
3. Explain whether the following particular do or don not have acceleration: (a) a particle moving...
3. Explain whether the following particular do or don not have acceleration: (a) a particle moving in a 4. Two projects are thrown with the same initial speed, one at an angle θ with respect to the level . Old book, problem 24, new book, problem 32. A fireman 50.0 m away from a burning building straight line with constant speed and (b) a particle moving around with constant speed. ground and the other an angle 90°-8. Both projectiles strike...
Could you please answer these questions 1- ++++++++ 2- +++++++ 3- +++++++ 4- ++++++++++++++ 5- ++++++++++...
Could you please answer these questions
1-
++++++++
2-
+++++++
3-
+++++++
4-
++++++++++++++
5-
++++++++++
6-
+++++++++
7-
+++++++
8-
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Calculate the average density of the following astronomical body: Mars. Mars = kg/m3 Where does the value fit among those listed in the table below? Look up the density of a typical rock, such as granite in another source and compare the density of Mars to it. A proton, which is the nucleus of a hydrogen atom,...
1. A projectile is fired straight upward at 170 m/s near the surface of Planet X,...
1. A projectile is fired straight upward at 170 m/s near the surface of Planet X, which has no atmosphere and where the acceleration due to gravity is g = 5 m/s2. (a) What is the acceleration of the projectile halfway to the top of its trajectory? [1] (b) Is the projectile in equilibrium at the top of its trajectory? Explain. [1.5] (c) How fast is it moving at the instant it reaches the top of its trajectory? (0.5] (d)...
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...
8. A projectile is fired from the origin in a straight line towards a rectangular target and hits it perpendicularly 2 seconds later. The vertices of the rectangle are (50,100,275), (100, 0, 275), (200,50, 150), and (150, 150, 150), where units are in meters. (a) At what point did the projectile hit the rectangle? (b) The projectile was trying to hit the center of the target. How accurate was it? (c) Assuming the projectile was moving at a constant speed,...
21) An antelope moving with a constant acceleration covers the distance between two points 70 m apart in 6 s. Its speed as it passes the second point is 15 m/s. What are a) its speed at the first point, and b) its acceleration? dtics.puf (64.6 KB) Page 2 -ZOOM + A car and truck start from rest at the same instant, with the car initially at some distance behind the truck. The truck has a constant acceleration of 2.1...
Frequently, a weapon must be fired at a target that is closer than the weapon's maximum range. To hit such a target, a weapon has two possible launch angles (figure A): one higher than 45= (x) and one lower than 45- (C.). Although the displacement of the projectile is the same for the two angles, a projectile launched at y has a longer flight time and a higher peak position than one launched at 8. Usually, some tactical situation makes...
2. For which trip do the distance and displacement have the same magnitude? A. A dog chases its tail in a circle. B. You walk around the block to your friend's house C. A drag racer accelerates down a straight track to the finish line D. A circus performer fired out of a cannon flies through the air 3. A skateboarder starts pushing from rest and accelerates at a constant rate of 1.2 m/s until she reaches a speed of...
A cat is walking along a hallway moving away from a sleeping dog. A graph of the distance between the cat and the dog as a function of time is shown to the right. A physics student uses 2) Distance, meters 20 the equation "rate times time equals distance" to calculate the speed of the cat at time 6 seconds: 16 12 distance / time 16.0 m/6s=2,667 m/s. rate 8 4 (a) What, if anything, is wrong with this calculation?...
4. Because parents are concerned that children are learning "wrong" science from TV you have been asked to be a technical advisor for a new science fiction show. The show takes place on a space station at rest in deep space far away from any stars. In the plot, a vicious criminal (Alicia Badax) escapes from the space station prison. Alicia steals a small space ship and blasts off to meet her partners somewhere in deep space. If she is...
3. Explain whether the following particular do or don not have acceleration: (a) a particle moving in a 4. Two projects are thrown with the same initial speed, one at an angle θ with respect to the level . Old book, problem 24, new book, problem 32. A fireman 50.0 m away from a burning building straight line with constant speed and (b) a particle moving around with constant speed. ground and the other an angle 90°-8. Both projectiles strike...
Could you please answer these questions
1-
++++++++
2-
+++++++
3-
+++++++
4-
++++++++++++++
5-
++++++++++
6-
+++++++++
7-
+++++++
8-
++++++++++++++
9-
Calculate the average density of the following astronomical body: Mars. Mars = kg/m3 Where does the value fit among those listed in the table below? Look up the density of a typical rock, such as granite in another source and compare the density of Mars to it. A proton, which is the nucleus of a hydrogen atom,...
1. A projectile is fired straight upward at 170 m/s near the surface of Planet X, which has no atmosphere and where the acceleration due to gravity is g = 5 m/s2. (a) What is the acceleration of the projectile halfway to the top of its trajectory? [1] (b) Is the projectile in equilibrium at the top of its trajectory? Explain. [1.5] (c) How fast is it moving at the instant it reaches the top of its trajectory? (0.5] (d)...
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...
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