Practice Problem 1: A train travels at 60 m/s to the east with respect to the ground. A businessman on the train runs at 5 m/s to the west with respect to the train. Find the velocity of the man with respect to the ground.

Q: Give one example (in detail) as to how both positive and negative numbers are being used in science.

A: One example of how both positive and negative numbers are used in science is in the study of…

Q: A person drove 5 miles from home to the store. She took a different route back home that was only 4…

A: Motion of person (i) 5 miles from home to store  (ii) 4 miles from store to back home

Q: Find the distance covered by mam Speed-4 m/s Time 5 s

A: Given data : Speed=S Time=t   Required : Distance=d

Q: What is the reading from the following dial caliper? 5678921234 80 -70 90 60 001 50 40 20 30

A: The solution of this question has been solved below...

Q: Solve for the numeric value of T1, in newtons.

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Q: Please help with parts A and B of this question. Thank you so much!

A: Given: Mass of the honeybee = 9 x 10-2 g Charge acquired by the honeybee = 24 x 10-12 C Earth's…

Q: One micrometer means  1/ 10 _6 of a meter 1/103  of a meter 1/10+ 6 of a meter No answer text…

A: Required: 1 micrometer in terms of meter

Q: What is the height in meters of a 3 foot 3.0 inch tall person ?

A: Given:-  The height of the person is h = 3 foot 3.0 inch  Find:-  The height in the meter?

Q: answer only D, E and F

A: Mass of the puck is m1 Mass of the additional is m2 Distance traveled by the additional mass is h

Q: The takeoff speed of a jetliner is 113 m/s. If the jetliner is to take off from a runway of length…

A:

Q: That's not the correct answer! The answer is 45 m

A: P = 1.3 MW v = 9.5 m/sCp = 0.36rho = 1.225 kg/m^3

Q: Define the following term: SI units

A: The SI unit is also called an international system of units and they are used universally as a…

Q: A plane took 3 hours 33 min to finish a journey.If the distance of the journey was 2840 miles,at…

A: Given that,Distance : d = 2840 milesTime : t = 3 hr 33 minHere we need to find the average speed of…

Q: The electrical force between two charges is 89.4 N. One charge is 4.1 x 10^-4 C. This charge is…

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Q: what should you do to change the values in SI units to a value in us customary units

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Q: what speed covers 20 miles in 2.5 hours

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Q: how to answer question (b)

A: (a) Draw the free-body diagram of the cart.

Q: The electrical force between two charges is 14.1 N. One charge is 8.6 x 10^-4 C. This charge is…

A: The electrical force between two charges is 14.1 N. One charge is 8.6 x 10^-4 C. This charge is…

Q: The database says that the answer is incorrect. Is there a different way of solving it?

A: If a star is moving away from us at a velocity v, then its distance from us (according to the Hubble…

Q: What are the basic concepts of physics?

A: Classical Mechanics:Classical Mechanics include the fundamental laws of motion and the equations…

Q: 122 km/hr = mile/hr

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Q: 12–118. The truck travels in a circular path having a radius of 50 m at a speed of v = 4 m/s. For a…

A:

Q: If the diameter of an electron in the orbit around a proton is 1.0 x 10-10 m and the frequency of…

A: Here, Radius (r) =10-10 m Frequency )w) = 1014 Hz Now, Velocity, V = wr V =1014×10-10 V =104 m/s

Q: following

A: For physical measurements, scientists all over the world have adopted the international system of…

Q: A passenger jet flies from one airport to another 1,333 miles away in 2.4 h. Find its average speed.

A: calculation

Q: 2 4 3 3 4 1 4 -3 5 1 −1 1 −2 3 2

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Q: 987 m/s = km/hr 4392 km/h = = m/s

A: Given: Convert the following velocities  v1 = 987 m/s to km/hr v2 = 4392 km/hr to m/s

Q: /hat is the least count?

A: The least count of a measuring instrument is the smallest and accurate value in the measured…

Q: applications of physics in everyday life

A: Asked: Use of physics in our everyday life

Q: When an object with an electric charge of −0.070mC is 2.0m from an object with an electric charge of…

A:

Q: digit(s) after the decimal point. When 15.9 is added to 99.6, the result should be reported with…

A: The problem ks based on tbe concept of significant figues and basic concept of rounding off. The…

Q: Which of these numbers are NOT in scientific notation? O 2.0 x 100 O 10 x 102 O 1.2 x 103 O5.3 x 109

A: Scientific notation of a number: The proper format for scientific notation is a x 10^b where a is a…

Q: - 40. A 2.00-kilogram mass is at rest on a horizontal surface. The force exerted by the surface on…

A: Part (40): Given: The mass of the object is 2 kg.

Q: 4 m2 = ? ft2 4 ft2 = ? m2

A: 1 m2 = 10.763 ft2. and 1ft2 = 0.0929 m2.

Q: What is the height in meters of a 5 foot 6.0 inch tall person? m

A: given that,h=5 foot 6 inchconvert h in meters