what do you think will happen to the water molecule when a) water boils b) electricity is passed through water during electrolysis
Ellen is an observer on a spaceship in deep space. Outside her window she can see two small asteroids that are stationary relative to her spaceship, and are both on her x-axis. The closest asteroid is 1.80 × 107 km away, while the second is 3.30 × 107 km away. Ellen observes signal lights on both asteroids appear at the same time, which she notes to be 0 seconds on her clock. She sees both signal lights turn off 56.0 s later. On the spacetime diagram below Ellen’s reference frame is represented by the x and t axes. River sees the same events from her spaceship, which is travelling at a speed of v relative to Ellen’s spaceship. Her reference frame is represented by the x’ and t’ axes on the spacetime diagram below. The divisions on River’s axes are spaced the same as Ellen’s. Critically analyse the information to compare how the events on the two asteroids appear to Ellen and River. In your answer you must include the following information A completed spacetime diagram showing the events on the two asteroids. You can copy the axes below into your document to complete your diagram. Determine the relative velocities, v of the two spaceships. You must choose which other values and information to present in your answer. In your answer you should explain how you determined the information presented. Question 2 Marking Rubric A grade (8) B grade (6-7) C grade (4-5) D grade (2-3) E grade (0-1) Critically analyses predictions of special relativity to create insightful solutions, with evidence, to the given problem. Analyses predictions of special relativity to create solutions, with evidence, to the given problem. Explains predictions of special relativity that relate to the given problem. Describes predictions of special relativity that relate to the given problem. Identifies predictions of special relativity that relate to the given problem. x (×10^6 km) t (×c m)
Q)What is the force between two small charged spheres having charges of 2 × 10^–7C and 3 × 10^–7 C placed 30 cm apart in the air?
A .50 kg mass attached to an ideal spring of spring constant 80N/c oscillate on horizontal frictionless surface , the mechenical energy is .12j , the greatest energy from y to x is
What is the approximate tangential speed of an object orbiting Earth with a radius of 1.8 × 108 m and a period of 2.2 × 104 s?
Refraction of a light ray may be defined asA. bouncing off the boundaryB. passing through the boundaryC. maintaining speed after a boundaryD. changing direction while crossing a boundary
Determine the distance Covered by a body is 5 Second, if it initial velocity is 30mls and acceleration 5. om/s
1. The mass of oil in a reservoir is 825kg. If the reservoir has a volume of 0.197m³. Determine: i. ii. The density of the oil The specific weight of the oil The specific gravity of the oil
3 each member in this marching band must move at a specific velocity to be in the correct place in the formation. Do all members of the band have to move at the same velocity at all times?
You hold a 0.125 kg glider A and a 0.500 kg glider B at rest on an air track with a compressed spring of negligible mass between them. When you release the gliders, the spring pushes them apart so that they move in opposite directions. When glider A has moved 0.960 m to the left from its starting position, how far to the right from its starting position has glider B moved?
An object is moving in the positive x direction on a surface with friction. What equations are used to translate the y direction forces into a friction force acting in the -x direction?
If the motion of an object in the x direction and y direction is known, how can the total motion of the object be found?
The position of a 280-g object is given (in meters) by x = 5.0t³ - 8.0t² - 44t, where t is in seconds. Determine the net rate of work done on this object (a) at t = 2.0 s and (b) at t= 4.0 s. (c) What is the average net power input during the interval from t = 0 s to t = 2.0 s, and in the interval from t = 2.0 s to 4.0 s?