Measure Your Reaction Time Here's something you can try at home-an experiment to measure your reaction time. Have a friend hold a ruler by one end, letting the other end hang down vertically. At the lower end, hold your thumb and index finger on either side of the ruler, ready to grip it. Have your friend release the ruler without warning. Catch it as quickly as you can.If you catch the ruler 6.0cmfrom the lower end, what is your reaction time?Express your answer using two significant figures.
Measure Your Reaction Time Here's something you can try at home-an experiment to measure your reaction time. Have a friend hold a ruler by one end, letting the other end hang down vertically. At the lower end, hold your thumb and index finger on either side of the ruler, ready to grip it. Have your friend release the ruler without warning. Catch it as quickly as you can.
If you catch the ruler 6.0
cm
from the lower end, what is your reaction time?
Express your answer using two significant figures.
Expert Answer
Want to see the step-by-step answer?
Related Physics Q&A
Q: Chapter 23, Problem 052 The figure shows a spherical shell with uniform volume charge density ρ = 1....
A: (a)Electric field at a radial distance r=0 from the center of the spherical charge distribution.Sinc...
Q: (a) In an RLC circuit, can the amplitude of the voltage across an inductor be greater than the ampli...
A: From the above equation it is shown that the amplitude of volatge across the inductor is greater tha...
Q: If the braking distance for your car at a certain speed is 200ft and, after reacting to a solution, ...
A: Acceleration is,
Q: How long does it take electrons to get from a car battery to the starting motor? Assume the current ...
A: Given Information :Current I =290 ACross sectional area of the copper wire A = 0.260 cm2=Length of t...
Q: A pulley has an initial angular speed of 12.5 rad/s and a constant angular acceleration of 3.41 rad/...
A: The equation of motion corresponding to angular motion is
Q: A 52.5-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic fr...
A: The mass of the crate = 52.5 kg.The coefficient of static friction = 0.679.The coefficient of kineti...
Q: The figure below shows two very long straight wires (in cross section) that each carry a current of ...
A: Magnetic field due to a very long current carrying wire is,
Q: A 1000-kg barge is being towed by means of two horizontal cables. One cable is pulling with a force ...
A: The direction of the cable exerting force of 120 N can be calculated using following steps:Given:
Q: Can someone help me work this out? I tried using the second kinematic equation and got 13.44m/s as V...
A: Click to see the answer
Q: Two large, parallel, conducting plates are 15 cm apart and have charges of equal magnitude and oppos...
A: Given:Distance between two large parallel conducting plates, d= 15 cm =0.15 mEqual and opposite char...
Q: The moment of inertia of a uniform rod (about its center) is given by I = ML2/12. What is the kineti...
A: The expression for the kinetic energy,
Q: You push a shopping cart filled with groceries (total mass = 20 kg) by applying a force to the cart ...
A: The direction of displacement of cart will be in the horizontal direction. Take the component of for...
Q: A 2.1 kg copper ball hung from a vertical spring oscillates in simple harmonic motion with an angula...
A: Substitute 2.6 rad/s for omega and 0.075m for Amplitude in the above equation to find the maximum sp...
Q: A wheel rotates through an angle of 13.8 rad as it slows down from 22.0 rad/s to 13.5 rad/s. What is...
A: The expression for the angular acceleration from angular kinematics equation,
Q: Suppose you design an apparatus in which a uniformly charged disk of radius R is to produce an elect...
A: Given:
Q: ESS 2 2 SE 16 s SES-ES ESESESES STA ES STA ES STA ES Arod AB with length L ellism is lying on a rect...
A: (a)Write the expression for total induced emf across the rod AB.
Q: A solid cylinder with a radius of 10 cm and a mass of 3.0 kg is rotating about its center with an an...
A: The equation for the moment of inertia of a solid cylinder is given by
Q: 24. A car of mass m moving at a speed vi collides and cou- mu ples with the back of a truck of mass ...
A: a)The expression for the final speed from the conservation of momentum,
Q: Iculate the coefficient of linear thermal expansion. Locate a table of linear thermal expansion fici...
A: For Rod 2, the experimental value of α is,
Q: The magnitude J of the current density in a certain wire with a circular cross section of radius R =...
A: Current through the outer section is given by,
Q: A weight lifter can bench press 171 kg. how many miligrams (mg) is this?
A: This is the conversion from 1 kilogram to milligram
Q: A particle of mass 8.29 g and charge 67.0 μC moves through a uniform magnetic field, in a region whe...
A: Given:
Q: How much work is required to set up the four-charge configuration of the figure if q = 4.50 pC, a = ...
A: Work done is same as the change in potential energy. Potential energy is a state of a system , a way...
Q: In the figure, set R = 266 Ω, C = 54.6 μF, L = 263 mH, fd = 60.0 Hz, and εm = 7.49 V. What are (a) Z...
A: Given,
Q: Tectonic plates are large segments of the earth's crust that move slowly. Suppose one such plate has...
A: Given,
Q: A child is riding a merry-go-round which completes one revolution every 8.36 s. The child is standin...
A: Write the expression for angular speed of the merry-go-round.
Q: A student drove to the university from her home and noted that the odometer on her car increased by ...
A: (a) The average speed of an object is the total distance traveled by the object divided by the elaps...
Q: Chapter 29, Problem 021 Your answer is partially correct. Try again. The figure below shows two very...
A: From the symmetry of the wires, the net magnetic field at point P is,
Q: 14.A crate of mass 10.0 kg is pulled up a rough incline with Man initial speed of 1.50 m/s. The pull...
A: a)Work done by gravity is,
Q: The figure shows light reflecting from two perpendicular reflecting surfaces A and B. Find the angle...
A: GivenThe incident ray I makes an angle θ with the normal
Q: A cheetah can accelerate from rest to a speed of 26.0 m/s in 4.25 s. What is its acceleration?
A: Given:Initial velocity of cheetah, u = 0 m/sFinal velocity of cheetah, v = 26.0 m/sTime taken, t = 4...
Q: The figure below shows two current segments. The lower segment carries current i1 = 0.44 A and inclu...
A: a)Consider the first case where current i1 through lower half is in anticlockwise direction and curr...
Q: What would be the weight of a 59.1-kg astronaut on a planet twice as massive as Earth and having twi...
A: The weight of the astronaut on the Earth
Q: The graph shows how the force component Fcosθ along the displacement varies with the magnitude s of ...
A: Work done is equal to the area under the curve. Therefore,
Q: A 2 meter tall stick is standing up, balanced on it's end. The stick then loses its balance, and sta...
A: Click to see the answer
Q: A 10.8-kg block rests on a horizontal table and is attached to one end of a massless, horizontal spr...
A: Draw the free body diagrams for the two cases of application of forces on the block as:
Q: The Sun and Earth each exert a gravitational force on the Moon. What is the ratio FSun/FEarth of the...
A: The expression for ratio of these two forces is,
Q: On May 26, 1934, a streamlined, stainless steel diesel train called the Zephyr set the world's nonst...
A: Given that the total distance covered by the train is 1633.8km, and the time taken for the journey i...
Q: Chapter 28, Problem 060 Your answer is partially correct. Try again. The figure shows a current loop...
A: The sides of the loop are parallel to the co-ordinate axis shown with AB=20.4 cm, BC=25.4 cm, and FA...
Q: Suppose you use an ideal pulley of the type shown in (see attached image) to support a car engine of...
A: (a) Using the free body diagram of the lower pulley , the sum of all forces in the vertical directi...
Q: (a) How many significant figures are in the numbers 99.0 and 100.0?
A: The number of reliably known digits in a number is called the number of significant figures. The imp...
Q: A 12-kg block on a horizontal frictionless surface is attached to a light spring (force constant 0.8...
A: The law of conservation of energy says that energy will be a constant quantity. The work done is giv...
Q: A uniform electric field has a magnitude of 10 N/C and is directed upward. A charge brought into the...
A: Magnitude of charge q is,
Q: consideration the appropriate number of Carry out the following calculation taking into figures:3.91...
A: Significant figures are the number of digits which contributes to the degree of accuracy. During add...
Q: A toroid having a square cross section, 5.73 cm on a side, and an inner radius of 21.3 cm has 400 tu...
A: Given:
Q: A car goes around a curve with a radius of 120 m. The car goes through an angle of 60 degrees at a c...
A: (a) The distance covered by the car around a circle of radius r=120m, as it goes through an angle of...
Q: A sandwich board advertising sign is constructed as shown in (attached image). Its mass is 6.40 kg. ...
A: The horizontal component exerted by each side on the hinge can be calculate in given steps:Given:Mas...
Q: 40. Two balls with masses M and m are connected by rigid rod of length L and negligible mass as show...
A: a)Moment of Inertia for mass M is,
Q: An ancient club is found that contains 130 g of pure carbon and has an activity of 7 decays per seco...
A: The expression for the initial activity,
Q: Two wires carry current into the page as shown below left. One wire carries a current I and the othe...
A: The magnetic field lines around a current carrying straight wire are concentric circles in which the...