The law of reflection tells us that the incident ray, the reflected ray, and the normal to the surface a. are perpendicular to one another b. all lie in the same plane c. are at equal angles to one an
When you set up a convex lens using an object (an arrow in most of the on-line simulations), the image formed A.on the same side of the lens as the object and was upside down B.on the same side of the
An example of a real image is A.The image formed by a concave mirror B.the image formed by a flat mirror C.the image formed by a concave lens D.No images are real, they are all virtual.
the problem is in the picture. it is about Principal of Superposition and Periodic Forces
How does the magnitude of electric force compare between a pair of charged particles when they are brought to half their original distance of separation? To one-quarter their original distance? To 4 t
Hi I have questions Given condition: laser beam pulses of EM-radiation in vacuum lasting 10^(-12) s, radiant flux density is 10^(20) W 1. What is the force applied on a reflecting surface 2. momentum
Modern Physics - Topics covered to date--> Special and General Relativity QUESTION: Galaxy A is reported to be receding from us with a speed of 0.35c. Galaxy B, located precisely in the opposite direc
Modern Physics: Topics covered date--> Special and General Relativity QUESTION: A particle with mass m has a total energy that is 3 times its rest energy. (A) What is its momentum? (B) What is its spe
Can anybody help me to solve "Weather Studies envestigations 2A and 2B
Vector A is your initial position and vector B is your final position. Trace these vectors onto your paper and use graphical methods to draw the resultant vector for the following: -(Vector A)-1/2(Vec
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1. Can you show me step by step how to solve this problem?:
- The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
- (a) What is the average angular acceleration of the Earth?
- (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?
- A spherical balloon is made from a material whose mass is 3.00-kg. The thickness of the material is negligible compared to the 1.5-m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305-degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19-kg/m^3. Find the absolute pressure of the helium gas