At its peak, a tornado is 68 m in diameter and has 230 km/h winds. What is its frequency in revolution per second?

Q: A roller coaster of mass 2000 kg is rolling down a track with an speed 10m/s. What is its kinetic…

A: Kinetic energy = (1/2)mv2  = 0.5×2000×100 = 105 J

Q: The force F has a magnitude of 770 N. Express F as a vector in terms of the unit vectors i and j.…

A: Given:  Force F = 770 N The angle made by F  with x-axis θ = 23°   Solution: The force vector is…

Q: The world's deepest gold mine, which is located in South Africa, is over 5.3 km deep. Every day, the…

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Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

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Q: The magnitude of a vector: Can be positive or negative. Must always be negative. Must always be…

A: The magnitude of a vector is defined by the numeric value of that vector.

Q: You start out by driving 72 miles south in 3 hours and 20 minutes, and then you stop and park for a…

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Q: 6. The ideal gas law describes the state of a hypothetical ideal gas, i.e., PV = nRT where P is the…

A: Write the given values with the suitable variables. n=0.654 molR=8.31 J/K.molV=12.3 L=0.0123 m3T=447…

Q: what force acts on a 1,150kg car travelling at a velocity of 23.0m/s when the brakes are applied,…

A: Given, Mass of the car = 1150 kg = m Velocity of the moving car = 23 m/s = u (initial velocity)…

Q: A cylinder containing 239.6 cubic centimeter of gas at a pressure of 342 kPa when its temperature is…

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Q: You are waiting at a traffic light on Manchester Expressway. At the instant the traffic light runs…

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Q: 1.What is the volume of a sound determined by? 4- The pitch of a sound wave b- The frequency of a…

A: In the given question, A sound is a vibration that propagates through a medium in the form of a…

Q: 48 V UT US Езд FIGURE C U t w Uh

A: Required  VOLTAGE ACROSS THE 4 OHM RESISTOR.

Q: In the figure, block 1 of mass m1 slides from rest along a frictionless ramp from height h = 2 m and…

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Q: Question 11 of 15 A diffraction grating having 200 lines/mm is illuminated with light of wavelength…

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Q: 6. The ideal gas law describes the state of a hypothetical ideal gas, i.e., PV = nRT where P is the…

A: We have an ideal gas given with number of moles n=0.654, rate of change of volume dV/dt=2 L/min,…

Q: 3. The members of a truss are pin-connected at joint O. Determine the magnitudes of F1 and F2 for…

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Q: Draw a I-V graph for a linear resistor. What does its slope represent?

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Q: 17. Magnification scale of X was used on 10 inch diameter screen, the largest object could be…

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Q: A runner runs around a circular track. He completes one lap at a time if t=497s at a constant speed…

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Q: Where is the 1/4 comes from?

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Q: The speed of sound in the air inside a 0.638-m long gas column is 348 m/s. What is the fundamental…

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Q: A patient’s temperature was 97.0 °F at 8:05 A.M. and 103.4 °F at 12:05 P.M. If the temperature…

A: GIVEN: Tem. at 8:05A.M. = 970F Temperature at 12:05P.M. =103.40F

Q: A sinusoidal voltage trace displayed by an oscilloscope is shown, if the 'time/div' switch is on 500…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Find the kinetic energy of a ball is 2.04 kg mass, moving at a velocity of 6 m/s

A: mass of ball (m) = 2.04 kg initial velocity (u) = 6 m/s

Q: Question 1 of 15 An object is placed a distance s to the left of a thin lens having a focal length…

A: The thin lens formula is 1f=1u+1v f is focal length u is the object distance v is the image distance

Q: factory siren indicating the end of a shift has a frequency of 87.5 Hz. The speed of sound in air is…

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Q: The rate of heat transfer on a cold day in the Canada through a rectangular window is 2300 W. The…

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Q: The image below presents a greatly exaggerated view of a planet in orbit around the Sun: m Planet D…

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Q: Calculate the volume of iron? тон - 7000 къ density - 0.148/1m²³

A: The density of any object whether solid, liquid or gas is defined as the ratio of mass to volume.…

Q: In the figure, block 1 has mass m1 = 450 g, block 2 has mass m2 = 520 g, and the pulley is on a…

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Q: You push on a rectangular door at the location of the knob (see diagram for top view). The door s…

A: Mass of door, M = 79.2 kg Side-to-side width, x = 1.83 m Distance of knob, r = 0.13 m Force, F = 148…

Q: Now we have a rod-shaped space station of length 1221 m and mass 1.61 x 10^6 kg, which can change…

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Q: Draw and describe a typical structure of avalanche photodiode? Why do they make a p+ layer located…

A: Avalanche photodiode is a type of diode that use the avalanche process to improve performance over…

Q: In the figure below, the table surface is NOT frictionless and the system is at rest. The mass of…

A: Free body diagram,

Q: f A An open belt drive connects two pulleys 1.2 m and 0.5 m diameter on parallel shafts 3.6 m apart.…

A: GIVEN: diameter of first pully D1 = 1.2m so radius r1= 1.2/2 =0.6m diameter of second pully D2=0.5m…

Q: A basketball player kicks a hollow basketball up a ramp at 18m/s.  The ramp has an angle of 25° and…

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Q: A 32.0 kg person starts at the center of a frictionless rotating merry-go-round that has a radius of…

A: We solve this problem by applying conservation of angular momentum.

Q: Compute the combined moment of the two 70-lb forces about (a) point O and (b) point A. The moment is…

A: Given F = 70 lb a = 4.7 in b = 2.8 in We have to calculate the moment about (a) point O (b) point A…

Q: A drum rotates around its central axis at an angular velocity of 13.6 rad/s. If the drum then slows…

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Q: One end of a cord is fixed and a small 0.550-kg object is attached to the other end, where it swings…

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Q: A train is 340 m long runs at 48 m/s. Calculate the time ?

A: Introduction :   In this question we are provided with value of distance and speed . With these data…

Q: For one data trial, you release a water balloon of mass 283 g from the top of a Stanley Hall onto…

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Q: Find the kinetic energy of a ball is 2.04 kg mass, moving at a velocity of 6 m/s

A: Introduction :  In this question we are provided with value of velocity and mass . With these data…

Q: a. Two antennas are used for spatial diversity and are at minimum distance from each other. The…

A: given that,distance between antenna to transmitter, d=47 mangle of seperation, θ=3.88° find:height…

Q: Researchers from NASA performed an experiment that will carry a land rover of 900 kg on MARS at a…

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Q: You have been daydreaming while studying, and watching student pilots take lessons at the Columbus…

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Q: Three concurrent forces are acting on a bracket. Find the magnitude and angle of the resultant for…

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Q: What’s the history behind gravitational waves?

A: Gravitational waves are 'ripples' in space-time that result from some of the Universe's most…

Q: A 3 kg ball is thrown directly upward from earth surface at a speed of 20 m/s. Neglecting air…

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Q: b- Complete the nuclear reactions that are showing below and calculate the kinetic energy of lighter…

A: in this we determine  mine molar mass different between reactant and products. and convert into…