- Velocity of a Lawnmower Blade A gasoline driven lawnmower has a blade that volnds out 1 foot from its center. The tip of the blade is traveling at the speed of sound, which is 1,100 feet per second. Through how many rpm is the blade turning?

Q: Those answers were incorrect

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Q: If a 6 kg mass is dropped from a height of 10 meters, what is the velocity of the mass right before…

A: In the given question the mass of the mass is given is 6kg and height is also given 10 meter from…

Q: What is the speed of a car that travels 200 meters in 25 seconds

A: (given) Distance (s) = 200 m       Time (t) = 25 s Speed of a car is                     = (Distance…

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: How fast is 90 km/hr in m/s?

A: Solution:

Q: A ship travels 15 miles in 112 minutes. What is its speed in mph? (Answer to the nearest whole…

A: Given Distance traveled by ship = 15 miles Time taken = 112 minutes =11260  =1.87 h We know that…

Q: Mass (m): Mechanical Energy (ME) = 1,000,000 J PE = 998,791 J h: v = 1.5 m/s KE: v: 55m v = 31.28…

A: At stage 1: PE = 998791 KE = Total mechanical energy - PE  KE = 1209 J KE = 12mv2 = 1209 m=1074.67…

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: The Willis Tower in Chicago is 1451 feet tall. How high is this in centimeters (cm)?

A: According to question we need to change unit of length.

Q: The brightest star in the northern hemisphere is Sirius. Its distance from earth is estimated to be…

A: Given The speed of light is c = 3.00 x 108 m/s. The distance of Sirius from the earth is d = 8.7…

Q: ½ (m/s) 4 2 t (s) 4 1 3

A: 17) Between t=0 s to 2 s, the position is increasing. Because in this period the particle has…

Q: A student traveling home from school spent 5.5 hours traveling at an average speed of 65 km/hr. The…

A: A travelling speed of the student from school to home,

Q: If k = 0.207, how long will it take a battery to reach a 60% charge? Assume that the battery was…

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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: e, which is the unit of:

A: Given: The unit is given below:

Q: If a car travels 100 miles in 1 hour and 50 minutes, what is its average speed in mph?

A: Distance travel by car d = 100 miles  Time taken to travel t = 1 hour and 50 minutes    We know the…

Q: A woman makes  25% more than her husband.Together they make $1800 each month.How much does the woman…

A: Write the expression relating the woman’s earning and her husband’s earning

Q: A car that gets 25 miles per gallon and want to estimate how many hours from now you will need to…

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Q: what is the reading in the micrometer ?

A: Least count of micrometer : Least count of micrometer=smallest reading of main scaleTotal number of…

Q: What branches of Physics are used in the development of Artificial Intelligence?

A: Artificial intelligence is the branch of computer science that deals with the development of…

Q: One NOT gate is added to one of the inputs to an OR gate, as shown in the following diagram A B…

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

Q: If an electrician works 4-and-3/4 hours a day on a job at $16.00 an hour, how much money does he…

A:

Q: How many significant figures are in the following number: 2.5x10(power of 2)

A: Given data:  A number 2.5×102 Required: The number of significant figures

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.