A galloping horse has a speed of 12 m/s at t= 0. After 50 s its speed is 8 m/s. Calculate the displacement of the horse assuming acceleration is constant. Answer: m

Q: Sound will travel the fastest at 20°C in   Air   Wood   Glass

A: Given data: Temperature T = 20oC Sound's speed; For air = 343 m/s For wood = 3,850 m/s For Glass =…

Q: AM radio waves can be produced by a marconi anthenna, whose length must be one-fourth of the wave's…

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Q: .. A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long.…

A: When force is acted on a body at a certain distance, then work is done by the force. its given in…

Q: 10. A student determine to test the law of gravity for himself walks off a skyscraper 300m high,…

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Q: e electric potential difference AV, also called voltage, is expressed in terms of the electric field…

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Q: ) For the same type of waves in the same medium, the wavelength and frequency of a wave are ______…

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Q: A solenoid is 3.0 cm long and has a radius of 0.50 cm. It is wrapped with 500 turns of wire carrying…

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Q: As a beam of star light passes by the Sun, the Sun: Group of answer choices a)acts like a lens and…

A: When a beam of star light passes by a sun ,then it is bent due to gravity of Sun .

Q: Q2: - Radioactive carbon 14 sample contain 2x10"nuclie initially and its half-life is 5730 years,…

A: Initial number of nuclei in the Carbon-14 sample No=2*1018, half life of C-14 T1/2=5730 years and…

Q: An electron (-q = -1.602 x 10-19C) moves along a straight line from point a to point b with a…

A: Given : q = -1.602 × 10-19 C d = 0.65 m E = 1.75 × 107 V/m

Q: Waves 1 and 2 show two different waves. Look carefully at the two waves. In what ways do their wave…

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Q: Part A In a photoelectric-effect experiment, the maximum kinetic energy of electrons is 3.2 eV .…

A: According to Einstein's photoelectric equation Maximum kinetic energy = h (ν-ν₀)

Q: If 31.0 g of milk at a temperature of 4.05°C is added to a 260-g cup of coffee at a temperature…

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Q: THIN LENSES Converging Lenses Object Height: 3 cm Focal Length, Image Distance (cm) (18) (22) Туре…

A: converging lensesobject height (h) = 3 cm

Q: point charge of -3.00 μC is in the center of a spherical cavity of radius 6.50 cm that, in turn, is…

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Q: A block of metal of mass 0.360 kg is heated to 146.0°C and dropped in a copper calorimeter of mass…

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Q: 5. In the diagram below, draw or indicate the direction of the magnetic force on the moving charge…

A: The magnetic force is into the page 16.9 ×10-3 (-ak) N

Q: A straight wire with length 2326 cm carries a current 23 A which is directed to the right and is…

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Q: In the figure, two circular arcs have radii a = 13.5 cm and b = 10.9 cm, subtend angle 0 = 70.0°,…

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Q: A schematic of a homemade hydraulic jack is shown in the figure below, with cylindrical tube ends of…

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Q: SA3) A 6-m uniform rod is acted upon by different forces at different points as shown in the…

A: A) Apply the condition for the equilibrium of forces along the vertical direction to determine the…

Q: lons of mass 1.17 x10-26 kg and charge q = +2e are initially stationary. They gain kinetic energy by…

A: Kinetic energy of charge particle in potential Vo (1/2) mv^2 = q Vo Vo = potential M = mass V =…

Q: 3. Give 5 energy saving tips. Write it in the graphic organizer(bulb) below. Enerqy Saving Tips

A: Turn off unnecessary lights. ... Use natural light. ... Use task lighting. ... Take shorter…

Q: B. Gibbs Free Energy Given the AHo and ASo, calculate the AG° value for the reaction below and…

A: For a spontaneous reaction, △G= Negative At standard condition, temperature=273k

Q: A stone is dropped from the deck of a bridge. The sound of the splash reached the deck 3 secs later.…

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Q: Light with wavelength 589 nm passes through crystalline sodium chloride. In this medium, find the…

A: wavelength of light in air, λo=589nmlet ,λ be the wavelength of light in NaCl

Q: 2. An object is undergoing a simple harmonic motion with a period of 0.9 s and an amplitude of 0.32…

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Q: You push on a rectangular door at the location of the knob. The door s mass is 65.1 Kg, and it's…

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Q: The filament of a tungsten light bulb has a resistance of 125 Ω at 400 ˚C. Determine its resistance…

A: R2 = R1 [ 1+ a (T2 - T1) ] R2 is resistance at 400°C R1=?  a = temperature coefficient of tungsten…

Q: A potted plant drops from a ledge 5.3 m above the ground. How much time do you have to catch it?

A: We have a plant that is dropping (initial velocity u=0) from a height h=5.3 m above the ground. We…

Q: An object with a height of -0.06 m points below the principal axis (it is inverted) and is 0.190 m…

A: We have an object of height ho=-0.06 m (Inverted) which is placed at a distance u=0.19 m from a…

Q: An object was placed in a freezer maintained at temperature -15 degrees Celsius. Assuming the system…

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Q: A horizontal power line carries a current of 7150 A from south to north. Earth's magnetic field…

A: IS to N=7150 AB=48.6μTL=130 mθ=60°

Q: Give the representation, equations and solution. Use elimination, comparison of su Graph using one…

A: Let the two numbers be x and y. As per the problem x+y=25 and x-y=7 We have to plot these two…

Q: The leg and cast in the figure weigh 220 N (w;). Determine the weight w, and the angle alpha needed…

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Q: The figure below shows five resistors and two batteries connected in a circuit. What are the…

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Q: Light beam will enter water at incident angle of 80°, before it enter a diamond crystal. What will…

A: The refractive indexes are given as  nwater=1.333ndiamond=2.419

Q: An object is placed 54.5 cm in front of a convex mirror. If the focal length of the mirror is -11.0…

A: Mirror formula  (1/f) = (1/v) + (1/u)  V = image distance u = object distance f = focal length

Q: Review of Vectors: Right figure shows A and B. Let A+B = C a. Determine the x and y components of…

A: Magnitude of vector A=3 Magnitude of vector B =2 Angle of vector A with X axis = 20o AAngle of…

Q: 1. Calculate the power absorbed by each element. I= 5 A P2 + 12 V 6 A 20 V Pi P3 8V P4 0.21 2.…

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Q: For a pair of electrons in the 2p state, what is the difference between the number of possible pairs…

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Q: One long wire lies along an x axis and carries a current of 52 A in the positive x direction. A…

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Q: A force of 170N is applied to an Calculate the pressure ? object of area 8 m2

A: Given data :                      Force    =    F                      Area      =    A        To…

Q: The uncertainty in the velocity of an electron is 66 × 10-3 m/s. What is the uncertainty in its…

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Q: A filling station uses a Venturi tube to measure the flow rate of gasoline. The density of the…

A: ρ = 720 kgm3r1 = 2.50 cm r2 = 1.25 cm P1 - P2 = 1200 Pa

Q: Directions: Write TRUE if the statement is true and if Not, underline and change the words that…

A: 1. True 2. True 3. True

Q: Q2 A ball is launched from the top of a platform of height 50m. The launch speed u= 50 km/hr and the…

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Q: MY NOT A dental hygienist uses a small concave mirror to look at the back of a patient's tooth. If…

A: Mirror formula 1/f =( 1/v) - (1/u)  V = imagen distance u = object distance F = focal length…

Q: Q1: A cubical box 25.00 cm on each side is immersed in a fluid. The pressure at the top surface of…

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Q: Problem: A man finds the angle of elevation of the top of a tower to be 30° He walks 85 m nearer the…

A: Consider the figure

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –