2. A cyclist accelerates from 0 m/s to 8 m/s in 3 seconds. What is his acceleration ? Is this acceleration higher th that of a car which accelerates from 0 to 30 m/s in 8 seconds? 3. A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. Find the car's average acceleration. 4. A lizard accelerates from 2 m/s to 10 m/s in 4 seconds. What is the lizard's average acceleration?

Q: The two monochromatic waves initially in phase are shifted by the distance shown in the figure…

A: Wavelength is the distance over which the wave repeats its shape. It is measured as the distance…

Q: Kirchhoff's Rules

A:

Q: A sled starts from rest at the top of a snow-covered incline that makes a 22° angle with the…

A: Solution: Ff=mgsinθ Here, Ff is the friction force, m is the mass, θ is the angle that sled makes…

Q: A vertical wire, with a current of 3 A is going towards the ground, and is immersed to 2.5 mT…

A:

Q: Four beads each of mass M are attached at various locations to a hoop of mass M and radius R (see…

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Q: 1. Determine, list and label which resistors are in parallel and which are in series. List all…

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Q: A block of carbon is 3.6 cm long and has a square cross-sectional area with sides of 6.2 cm. A…

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Q: 4. A 9.00 kg mass is moving to the right with a velocity of 14.0 m/s. A 12.0 kg mass is moving to…

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Q: 3. A child is prescribed a dosage of 12 mg of a certain drug per day and is allowed to refill his…

A: Solution: 3. Calculate the total number of tablets in 3 prescriptions. 60x3=180 tablets. Calculate…

Q: A load of 50 kg is applied to the lower end of a steel rod 80 cm long and 0.60 cm in diameter. How…

A: Given, Mass of the rod, m = 50 kg length of the rod, L = 80 cm diameter of the rod, d = 0.60 cm…

Q: What is the current flow through R1, R2, and R3? R12 3 Ohm V2 9 V R2 3 Ohm R3 3 Ohm

A: What is the current flow through R1, R2, R3

Q: Two small spheres each have a mass m of 0.100 g and are suspended as pendulums by light insulating…

A: Given: mass (m) = 0.100 g angle, θ = 6° length, l = 1 m

Q: Forces which are identical in terms of magnitude are are applied to three different locations on a…

A: How will the hexagon rotate and in what direction.

Q: Three batteries of Vo=157 with internal resistance r, = 12 V and 2 = 12 V are connected to two…

A: “Since you have asked multiple question, we will solve the first question for you. If you  want any…

Q: Explain why. Thanks

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Q: A vertical wire, with a current of 3 A is going towards the ground, and is immersed to 2.5 mT…

A: Dear student,  Since both questions are different as per guidelines we can author only first one…

Q: The magnetic field strength of a thoroughly wound flat circular coil of wire that has a measured…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Jsing the principle of conservation of mechanical energy, determine the speed of the block with a…

A: As per the conservation law of energy, Here, E, m, g, h, u, and v represent the total energy, mass,…

Q: 12. Two stupdents are pulling a cart, as shown in the picture to the right. What is the acceleration…

A:

Q: The frequency F of a fire truck siren heard by a stationary observer is given below, where ± v…

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Q: 1) A unicorn is standing on a rotating platform, so that it can be admired from every angle. The…

A: As  F=mω2R=μmg

Q: For the system of blocks shown, a horizontal force P impends the motion of block A upwards. The…

A:

Q: A car starts from rest and accelerates to a speed of 60 mph in 25 seconds. The acceleration during…

A: The total distance traveled by the car is equal to the area under the speed-time curve. In this…

Q: A cyclist in a race must climb a 5° hill at a speed of 8 m/s. If the mass of the bike and the biker…

A:

Q: e if the statement is correct. Otherwise, change the underlined word/s to make

A: Work done=FScosθ

Q: Situation 1. Seven-year old female twins of identical mass exhausted themselves in a park slide.…

A: In this question we are given with a situation where Kara and Lara are playing together on the slide…

Q: Two point charges, +Q and -Q are arranged on the x-axis at the coordinates (-a, 0) and (a, 0) as…

A: Given that: To determine the potential at each 5 points.

Q: Questions. 1-A 500- resistor, an uncharged 1.50-µF capacitor, and a 6.16-V emf are connected in…

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Q: **A positive charge Q1 = 40.0 mC is located at a point X1 = -2.00 m, a positive charge Q2 = 30.0 mC…

A: Given that: Q1=40.0 mC=40.0×10-3 CQ2=30.0 mC=30.0×10-3 CQ3=20.0 mC=20.0×10-3 C

Q: A 29.1 kg boy slides down a dirty playground slide with a 45° slope. If the boy accelerates down the…

A:

Q: Determine the coordinates of the lineal shape (one horizontal line and one vertical line) shown in…

A: Co-ordinate system

Q: (a) Why are crystals used in the measurement of matter waves? (b) Which physical phenomena do matter…

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Q: suspended on the rod of length 0.47 m and mass 0.46 kg as it is shown in the figure. System can…

A: Given: mass of sphere m=0.9 kg mass of bullet M=0.02 kg  length of rod L=0.47 m mass of rod =0.48 kg…

Q: The diameter of a cylindrical sample metal was measured using a Vernier caliper and gave the…

A: The length of the object is determined by vernier caliper, using the given formula, Length = MSR +…

Q: 13) Use the following data to graph and determine the average speed of the object. Show all work.…

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Q: A cyclist pedals along a slope which is at 5.0° to the horizontal. The cyclist starts from rest at…

A: Given data:  Angle (θ) = 5.0°, with the horizontal Inclined distance (d) = 40 m Mass (m) = 90 kg…

Q: Calculate the possible currents of the two wires, if the force per length is 75 microNewton per…

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Q: b) A hydroelectric power station has an efficiency of 70% and the reservoir is 425 m above the…

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.