Problem 6 The brakes on your car can slow you at a rate of 5.2 m/s?. If you are going 137 km/h and sud- denly see a state trooper, what is the minimum time in which you can get your car under the 90 km/h 90 speed limit? (The answer reveals the futility of braking to keep your high speed from being detected with a radar or laser gun.)

Q: A new unit of length is chosen such that the speed of light in vacuum is unity. What is the distance…

A: Given: Speed of light = 1 unit Time taken = (8 x 60) + 20 = 480 + 20 = 500s

Q: Prof. Chini's research group uses short bursts of laser light to measure the motion of electrons…

A:

Q: Light travels at a speed of 3.0×108 m/s in air. What is the speed of light in glass, which has an…

A: Write a given values of this question. Velocity of light in air. c=3×108m/s Refractive index of the…

Q: see a bolt of lightening and 4 seconds later we hear the thunderclap. if the speed in the air is…

A:

Q: What is the equation of the line illustrated in the graph below: 450 375 300 225 150 75 10 20 30 40…

A: The provided graph of the equation is shown below.

Q: A car is moving at a speed of 50 km/h. Its speed expresses in m/s is 25 m/s 13.8 m/s 20 m/s 30…

A: Speed of car (u) = 50 kmhr Using conversion factor : 1 km = 1000 m 1 hr = 3600 seconds

Q: A meteor crashes into the atmosphere at 50 km/s (Think about that, that’s really fast!)  Let’s say…

A: The equation of motion is given by, Δy=ut+12at2 Here, Δy is the displacement, u is the initial…

Q: whats the mass of a hydrogen proton?

A: To give : Mass of hydrogen proton

Q: The answers to this question are wrong and the solution is a bit confusing, please can you solve it…

A:

Q: 0.1395289 written in scientific notation

A:

Q: The number of square centimeters in 4.00 square meters is O 1) 4000 O 2) 400 O 3) 40 O 4) 40000

A: Given  4 m2

Q: How we get 0,46?

A: It is given that,                         The mass of the block, m=2500 grams=2.5 kg.…

Q: Earth, the densest planet in the solar system, has a mass of 5.98 x 1024 kg and a volume of 1.08 x…

A: Given: The mass of the earth is 5.98x1024 kg. The volume of the earth is 1.08x1021 m3.

Q: An object with a mass of M and a volume of V has a density of ρ. If the density is doubled without…

A:

Q: A marathoner starts his journey at the fire station, goes 12 km north and turns right at the…

A:

Q: and your friend both start your trips in Chicago. Driving nonstop, you reach Los Angeles — a…

A: Speed = distance travelled /time taken  1day = 24 hrs  1hours = 60 min  1 min = 60 sec

Q: Determine moment of inertia I, of the region with respect to the y-axis.

A: Here is the explaination in the given image

Q: The side of a square measures 4 m in length. What is the area of the square? O 16 x 10 -4 cm² O 16 x…

A: Side , a = 4 m To find = Area

Q: 4. Rose stands in front of a mirror and she looks at Jack through it. The perpendicular distances of…

A:

Q: Our Galaxy is about 100,000 light-years across. If you could travel at half of the speed of light,…

A: Given  Our Galaxy is about 100,000 light-years across.  Speed with we travel is equal to half of the…

Q: A cyclist, starting from rest, travels in a straight line for 10 minutes. 1. During the first 2.0…

A: Given the uniform acceleration is 0.067 m.s-2 for the first two minutes. Therefore the velocity for…

Q: Why was m converted to cm?

A: Given that- The mass of the cart is= 0.92 kg The spring constant of the spring is= 130 N/m The…

Q: The art in scientific thinking—whether in physics, economics, or engineering—is

A: The art in scientific thinking—whether in physics, economics, or engineering—iswe need to fill it up

Q: 2157m into scientific notation using 2 significant figures

A: Given : Distance, D = 2157 m Required : To express the given distance into scientific notation using…

Q: While Emely was watching a military parade of a group of US Army soldiers, the soldiers caught her…

A: This is an example of Newton third law that is for every action there is equal and opposite…

Q: How does physics work?

A: Physics is a natural science that involves the study of matter and its motion through space and…

Q: The mass of a newborn baby’s brain has been found to increase by about 1.6 mg per minute. (a) How…

A: Rate of increase of mass of a newborn baby's brain,…

Q: Who led a revolution in physics.

A: Physics is a branch of science whose primary objects of study are matter and energy. Physics today…

Q: This was a multi select is this the only that applies?

A: if this is a multi select question  then A and D also could be the Answer .

Q: 2nd question solution please

A: According to charge conservation, total charge is constant for an isolated system

Q: Who is father of physics

A: Galileo Galilei

Q: 100 100 200 30 300 40 200 300 300 400 500 € 50% 40 (Object placed in 50 ml of water) 50 40 (Object…

A:

Q: The distance between Saturn and the sun is approximately 8.9 × 108 mi. The speed of light is…

A: Given data:  Distance between Saturn and the sun (d) = 8.9×108 mi The speed of light (v) = 1.9×105…

Q: In step 3, I am struggling to see the numbers. So if I'm corren the answer is 7?

A: In step 3,  we have the calculations as, The tension is taken as T Mass density of the rope is taken…

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