Physics question and answers for July 03, 2023
- Q A spherical object with a radius rrr = 4.2×10−7 mm and mass m is in equilibrium at a distance ddd =9.1×1012 mm from a star due to the cancellation...
- Q The position of a particle moving along the x axis isgiven in centimeters by x = 9.72 + 1.85t3, where t is in seconds. Calculate(a) the average velocity during the...
- Q Consider a particle moving in two spatial dimensions,subject to the following potential:V (x, y) = (0, 0 ≤ x ≤ L & 0 ≤ y ≤ H∞, otherwise.(a) Write down...
- Q A football is kicked at ground level with a speed of 25 m/s atan angle of 45 degrees to the horizontal. How far down field doesit go (assume takeoff and...
- Q A block of ice, mass 3.20 kg and initial temperature of -8oC, is placed in an insulating container. 5.00 kg ofwater at temperature 13 oC, is added to the container.The...
- Q An 8-ton truck is initially going up a 20° ramp with a speed of90 km/hr. The truck, then, brakes reaching a speed of 36 km/hrafter 3 seconds. Assuming constant deceleration...
- Q An otter jumps horizontally off a cliff with a speed of 2.72 m/sand lands in the water a horizontal distance of 4.67 m from theedge of the cliff. How high...
- Q Howcan we quantify experimental errors such as random errors due tovariations in reaction timing?
- Q An Atwood's machine consists of blocks of massesm1 = 9.1 kg and m2 = 20.0kg attached by a cord running over a pulley as in the figure below.The pulley is...
- Q Explain the relationship between magnetism and current. How aremagnets and electric charges similar? How are they different? Whatis something new you learned about electricity and magnetism?
- Q Two blocks on a frictionless horizontal surface are on acollision course.One block with mass 0.25 kg moves at 1 m/s to theright collides with a 0.5 kg mass at rest...
- Q QUESTION 2 The Doppler Effect may be used to determine therelative velocity of objects, such as cars on the highway, or starsin the galaxy. When the OBSERVED frequency appears to...
- Q A block is placed on a frictionless ramp at a height of 13.5 mabove the ground. Starting from rest, the block slides down theramp. At the bottom of the ramp,...
- Q The fact that BE/A is greatest for A near 60implies that the range of the nuclear force is about the diameterof such nuclides.(a) Calculate the diameter of an A =...
- Q An electric heater is really just a resistor with a voltageacross it. If you want to have 682 W of heat with a voltage V = 112volts, what resistance (Ω)...
- Q These are the answered multiple choice questions aboutthe forces in the Student and Backpack problem. Make a cleardiagram which properly identifies all of the forces acting on thestudent (you will...
- Q Elastic collisions are said to conserve the total kineticenergy, while inelastic collisions result in some loss of energy.Provide and describe a real-life example of each type. Indicatewhere you think the...
- Q Problem #5 : a) Two positive charges, Qa and Qb are placed onopposite sides of a grounded sphere of radius R at distances of 3Rand 6R, respectively, from the sphere...
- Q Pose a situation (only one) problematic of real life,where you need mechanical physics to solve it. Situations similarto those we have been working on in the previousactivitiesThe problem posed must...
- Q The majority of exoplanets are gas giants. Are rocky planets(Earth) rare? Explain.
- Q Brakes are applied to a 3000-kg car moving at 30 m/s. The carskids 200 m and stops. What is the coefficient of kineticfriction?
- Q If 200 g of ice at 0°C and 50 g of steam at 100°C interactthermally in a well-insulated container. The final state of thesystem will be;( is loved it and...
- Q Problem 4. Boral isthe material composed of 50 % Al, 40 % B, and 10 % C by weight. Itsdensity is 2.56 g/cm3. A beam of0.025-eV neutrons with intensity of5´106neutrons/(cm2×s)strikes...
- Q Given that the cash flow forecast is crucial for the success ofa project, who should be responsible for developing theseforecasts? Should it be a team effort, and if so, who...
- Q A patient swallows a radiopharmaceutical tagged withphosphorus-32 32 15 P , a β− emitter with a half-life of 14.3 days.The average kinetic energy of the emitted electrons is 700 keV....
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!