What is an expression for x2(t), the position of mass I as a function of time? Assume that the position is measured in meters and time is measured in seconds. Express your answer as a function of t Express numerical constants to three significant figures.

Q: Police use the formula: V20L to estimate the speed of a car, v, in miles per hour, based on the…

A: Given: The Length of skid mark L = 158 ft. The velocity formula is given as, v=20L

Q: The maximum running speed (S) in km/hr and the corresponding body mass (m) in kg were determined for…

A: Unit of speed is km/hr Unit of mass is kg The relation between speed and mass is  S=5.7m2Unit of…

Q: A force is acting on a block with a magnitude of F = 115 N. The force makes an angle of 0 = 14° with…

A: The free-body diagram of the case can be drawn as follows:Here:Given values:

Q: You want to convert the speed km/h into m/s for a physics problem. Which of the following could act…

A: Given:  Km/h into m/s

Q: What is the speed of a car going v=1.000 mph in SI units? Notice that you will need to change miles…

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Q: The following data were taken on five cars traversing a 1.6-km highway. Car…

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A:

Q: GMm F = Newton's law of universal gravitation is represented by the gravitational force exerted by…

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Q: Using the equation Ek = mv2/2 , write an equation to solve for (a) m and (b) v.

A: Given data:  Kinetic energy equation Ek = mv2/2 Required: Equation to solve for mass and velocity

Q: What is the value of g at an altitude of 12,000 km above Earth's surface? Consider: rEarth = 6.38 x…

A: Given data: Altitude (h) = 12000 km rearth = 6.38×106 m Mearth = 5.98×1024 kg Required: Acceleration…

Q: Question 1: The magnitude of the friction force acting on a particle is given by f = -bv². Here, b…

A: The equation for the friction force is given by, f=-bv2 The right hand side and the left hand side…

Q: The sides of a small rectangular box are measured to be (1.80 ± 0.01) cm, (2.20 ± 0.02) cm, and (3.0…

A:

Q: 5.00 cars pass through an intersection each second. How many cars pass the intersection in 1.00…

A: In 1 year there are 365.25 days.  In 1 days there are 24 hours.  In 1 hours there are 60 minutes.…

Q: kilometers

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Q: The average distance, d, that a Galapagos tortoise travels during a day scales with the tortoise’s…

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Q: Using Excel to make a plot of the Position vs Time given in the following table. The dependent…

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Q: C1 P2. A car is traveling at a speed of 6.0 m/s. (a) What is its speed in kilometers per hour?…

A:

Q: The acceleration of an object moving through a viscous fluid (like honey) is a = -bv / m, where v is…

A: Option a.) Kg/s

Q: In the Discussion question for Lesson 12, Makeshift Scale, we considered creative ways to estimate…

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Q: The speed limit on some interstate highways is 127 km/h. What is the correct procedure for…

A: Speed limit on interstate highways = 127 kmhrTo find : the procedure for converting km/hr to m/s

Q: large accelerations can injure the body, especially if they last for a considerable length of time.…

A: Given:-  We know that the severity index SI = a5/2t.  here t is the duration of acceleration but a…

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Q: What are the SI base units of length, mass, and time?

A:

Q: If you make multiple measurements of your height, you are likely to find that the results vary by…

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Q: . 2.13 When two objects (labeled by subscripts 1 and 2) of masses m, and ma collide, their initial…

A: given herem1= 1000kgm2=550v1=20 msv2=-35 msv1'=5 ms Momentum is to be conserved as mentioned in the…

Q: One type of engine used in space travel is an ion thruster. These engines produce a low force that…

A: Given : Mass of a satellite is 1.7 milligrams Force applied on a satellite is 87 millinewtons

Q: You determine the average speed for your walking pace. If the measured distance of your trip is…

A: Given value--- distance = 100 +/- 0.5 . time = 60 +/- 0.3 . We have to find--- dv/v ?

Q: Caleb left home and traveled toward the city A at an average speed of 57.9 km/h. Some time later,…

A: To answer this, we should keep in mind that both Caleb and Kim started from the same place. Also the…

Q: Consider the equation s = s0 + v0 t + a0 t2 /2 + j0 t3 /6 + S0 t4 /24 + ct5 /120, where s is a…

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Q: A car takes time t=(2.5±0.1) s to travel a distance Ax=(0.922±0.001) m. What is the relative…

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Q: Migrating land mammals are often called runners because of the large distances that they can cover…

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Q: PROBLEM 3: Calculate the average speeds of object A and object B. Which object has the faster speed?…

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Q: QUESTION 2 Match units with physical quantities. m = meter kg = kilo gram s= second Mass (M) v…

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Q: Caleb left home and traveled toward the city A at an average speed of 61.3 km/h. Some time later,…

A: We are given,  Speed of Caleb  = 61.3 km/h Speed of Kim     = 47.4km/h    After travelling for 1.36…

Q: Kinetic energy KE (Chapter 5) has dimensions kgm2/s2. It can be written in terms of the momentum p…

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Q: tion for force is denoted by F= At^-1+Bt^-2, where t is the time. The dimension o

A: Given:  F= A/t +B/t2 since it is in linear combination, B/t2 must have same dimensions as F

Q: If you make multiple measurements of your height, you are likely to find that the results vary by…

A: The height of a guy in feet and inches must be converted into metres with significant figures.

Q: The sides of a small rectangular box are measured to be (1.90 ± 0.01) cm, (2.00 ± 0.02) cm, and (3.1…

A: Given the measurements with uncertainties:Length (l):  (1.90±0.01) cmBreadth (b): (2.00±0.02)…

Q: Suppose a machine is invented to measure the amount of knowledge in a student’s head in units called…

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Q: What is the slope for the linear function modeling velocity as a function of time, V=,  and what…

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Q: The kinetic energy K of an object of mass m moving with speed v is given by the formula K = mv2. The…

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!