Physics question and answers for September 20, 2023
- Q You found the two main angular velocities of the Earth: one dueto the Earth's motion around the sun, and one due to its rotationabout its own axis. Now let's figure...
- Q A horizontal spring with a spring constant of 190 N/cm iscompressed 6.3 cm. A wooden block with a mass of 1.5 kg is placedin front of and in contact with...
- Q Harry Potter (back to his normal size) has discovered that hismagic wand is exactly one meter long. After some coaxing fromHermione, Harry is persuaded to mark off his wand in...
- Q An object of 7kg is lit and it becomes suspended at rest fromthe ceiling. It then explodes into 3 parts. Part 1 has a mass of2.7kg and is traveling 3.1m/s...
- Q 1.Three identical very dense masses of 3500 kg each are placedon the x axis. One mass is at x1 = -120 cm , one is at the origin,and one is...
- Q A block of mass m = 98 kg slides along a horizontalsurface. The coefficient of friction between the block and thesurface is μk = 0.38. The block has an initialspeed...
- Q The blades of a ceiling fan have a radius of 0.380 m and arerotating about a fixed axis with an angular velocity of +1.50rad/s. When the switch on the fan...
- Q Quantitatively (i.e. with equations) explain fictitious force in1) linear motion and 2) uniform circular motion.
- Q Calculate the well potential for the fission decay channelresulting in 140Ba and 98Kr.
- Q What is meant by the term `dynamic range' in the context of adata acquisition system? How can selection ofthe wrong dynamic range affect either (a) the precision of theexperimental measurements,...
- Q A 0.300-kg ice puck, moving east with a speed of 5.84 m/s , hasa head-on collision with a 0.990-kg puck initially at rest. Assumethat the collision is perfectly elastic.A) What...
- Q In a test of the elasticity of basketballs, a basketball firedby an air gun against a solid wall, compressing it to 80.0 % of itsoriginal volume. The air inside the...
- Q An energy plant produces an output potential of 2100 kV andserves a city 238 km away. A high-voltage transmission line carries580 A to the city. The effective resistance of a...
- Q A 45.4 kg, 3.8 m uniform ladder leans against a frictionlesswall. A 99.1 kg person is standing on the ladder down 1.04 m fromthe top of the ladder. The ladder...
- Q A very metal train moving at a constant speed is passing ahippie observer on a platform. On one of the train cars, aDeathcore guitarist is continually hammering out a note...
- Q In an industrial cooling process, water is circulated through asystem. If water is pumped with a speed of 4.00 m/s under apressure of 6.70 × 105 Pa from thefirst floor...
- Q The water flow rate for a particular sprinkler is 18 gpm. Thewater must be projected at least 22 feet in radius. The sprinkleris mounted 10 feet above the ground and...
- Q What is the smallest area of ice 29 cm thick that will support a85 kg man? The ice is floating in freshwater.
- Q Billiard ball A of mass mA = 0.116 kg moving with speed vA =2.80 m/s strikes ball B, initially at rest, of mass mB = 0.135 kg .As a result...
- Q what Connects claim to theory in rotational motionIncludes theoretical model for rotational inertia of a twoobject systemDiscusses similarity and differences between theoretical andexperimental modelsDiscusses possible assumptions and limitations with possibleimpact...
- Q 1. Discuss how a missing atom at a lattice sidecontributes to the conductivity of asemiconductor     2. Estimate the energy of a photon of X rays. (Answer:12 keV)3. On the one hand,...
- Q Suppose that a cannon tower of 1000 feet height was erected atthe origin of the coordinate space. The speed of the cannonballslaunched by the tower is 1000 feet per second....
- Q In a particular frame of reference a virtual particle appears totravel at a speed twice the speed of light. How fast must adifferent frame move in order for this particle...
- Q Using words, explain the laws of physics behind this in aparagraph. Don't just write equations with fewwords.Here is the video:https://www.youtube.com/watch?v=8B_6BU7SYf8The Horo was used by the Ancient Japanese to deflect arrows...
- Q Describe the physics of an electric generator with relevantequations ?
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!