Physics question and answers for August 26, 2023
- Q A 6.60 −μC particle moves through a region of space where anelectric field of magnitude 1350 N/C points in the positive xdirection, and a magnetic field of magnitude 1.25 T...
- Q To describe and analyze motion in 2D (or higher), the use ofvectors is the common method used. From your work with vectors,past and present, do you find the vector method...
- Q How do random motion and gravitational collapse combine toconvert giant molecular clouds into open star clusters over a longperiod of time?
- Q Describe house wiring and specify how parallel or seriesconnections of bulbs and resistors affect the functions.
- Q A kestrel dives from a stationary hover, 20 m above the ground,to catch its prey, typically mice, on the ground. (a) If thekestrel’s acceleration toward the ground is due solely...
- Q A 72.0 kg swimmer jumps into the old swimming hole from a treelimb that is 3.95 m above the water.Use energy conservation to find his speed just as he hits...
- Q what is the frequency of a sound wave made by
- Q If Emily throws the ball at an angle of 30∘ below the horizontalwith a speed of 14m/s, how far from the base of the dorm shouldAllison stand to catch the...
- Q The nucleus of 8Be, which consists of 4 protons and 4 neutrons,is very unstable and spontaneously breaks into two alpha particles(helium nuclei, each consisting of 2 protons and 2 neutrons)....
- Q During a tennis match, a player serves the ball at 25.6 m/s,with the center of the ball leaving the racquet horizontally 2.34 mabove the court surface. The net is 12.0...
- Q A passenger on a moving train walks at a speed of 1.60 m/s duenorth relative to the train. The passenger's speed with respect tothe ground is 4.5 m/s at an...
- Q the force exerted by a spring is given by the equationwhere F is the force (in Newtons), xis thedisplacement of the spring from the equilibrium position (incentimeters), and k is...
- Q Express the following quantities using the prefixes given in thetable. (Enter a numeric value between 0.1 and 100, and choose theappropriate units.)Prefixes for Powers of TenPowerPrefixAbbreviation10−24yoctoy10−21zeptoz10−18attoa10−15femtof10−12picop10−9nanon10−6microµ10−3millim10−2centic10−1decid103kilok106megaM109gigaG1012teraT1015petaP1018exaE1021zettaZ1024yottaY(a) 3 ✕ 1011 m  ------...
- Q From the window of a building, a ball is tossed from a height y0above the ground with an initial velocity of 7.90 m/s and angle of19.0° below the horizontal. It...
- Q In this module, you will look for an article or newsstory/video that relates to one or more of the followingtopics:Conservative versus non-conservative forcesPotential EnergyConservation of energy (as it relates to...
- Q A 28.0-kg block is connected to an empty 2.56-kgbucket by a cordrunning over a frictionless pulley. The coefficient of staticfriction between the table and the block is 0.41 and thecoefficient...
- Q Calculate the number of free electrons per cubic centimeter (andper atom) for sodium from resistance data (relaxation time3.1*10-14 s)
- Q What are Kepler’s Three Laws and why are they important?
- Q Rent a rideshare bike and ride it throughout the course at apace that elevates your heartbeatsomewhat, but without over-exertion. Time your ride and calculateyour average speed. Draw aforce diagram for...
- Q A small mailbag is released from a helicopter that is descendingsteadily at 1.07 m/s.(a) After 5.00 s, what is the speed of the mailbag?v = _____ m/s(b) How far is...
- Q Find out the magnitude as well as the direction of the followingvectors:Ax = 22.0 cm; Ay = 33.0 cm;Bx = -11.0 m; By = 84.5 m;Cx = -77.3 mm; Cy...
- Q You have three 1.3 kΩ resistors.A.) What is the value of the equivalentresistance for the three resistors connected in series?B.) What is the value of the equivalentresistance for a combination...
- Q Hands-on Lab: Air Resistance and Free Fall Name(s): Date: Pleaseuse a font color other than black, red or green for your answers.Theory: for several centuries, it was believed that heavy...
- Q Paragraph 1- Outline a general definition and description ofmatter. Include descriptive features (as applicable) about thephysics concepts – dependent factors, relevant terminology,conventions, common units of measure, etc.Paragraph 2- Summarize one...
- Q Physics/NeuroscienceUsing complete sentences and proper vocabulary, describe (inyour own words) how neural circuit for knee-jerk reflex works
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