A runaway train car that has a mass of 15,000 kg travels at a speed of 5.4 M/S down a track. Compute the time required for a force of 1500 N to bring the car to rest.

Q: If a safe distance is expressed as one car length per 22 km/h of speed traveled, how many car…

A: Given that safe distance is one car length per 22 km/h.

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Q: A car starts from rest and reaches a speed of 48ft per sec in 15sec. The acceleration increases from…

A: a=v-ut=48 ft/s-0 ft/s15 s=3.2 ft/s2 Distance travelled in first 6 seconds. d1=v2-u22a=48 ft/s2-0…

Q: What is the old name of physics

A: To determine  Old name of physics

Q: Is kg/s a basic or derived unit in SI?

A: A kg i.e. kilogram is the basic SI unit representing mass of an object, while a second is the basic…

Q: A spaceship travels at a speed of 62 ft/ms convert its speed to km/s ( by mean milisecond)

A: Given data:  Speed of the spaceship (v) = 62 ft/ms Required: Speed in km/s

Q: If A = -15i + 25j + 13k and B = -3j + 7k , find the resultant when A is subtracted from B? * 12i…

A: Given value--- A = -15i + 25j + 13k B = -3j + 7k . We have to find--- B -A ?

Q: attached excel file and

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Q: Check whether the following formulas are dimensionally consistent. Force = mass times acceleration.

A: For the formula to be dimensionally consistent, the dimensions on both sides of the formula must be…

Q: The dimension of a room is 12 feet by 20 feet. Compute the area of the room square yards. Given 1…

A: The dimension of a room is 12 ft by 20 ft. So, length L=20 ft and breadth b=12 ft. The conversion…

Q: None

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Q: Why is Mathematics an important tool in the study of physics?

A: A question often asked i.e., the importance of mathematics in physics. Some people think that…

Q: If a marathon runner averages 9.5 mi/h, how long does it take him or her to run a 26.22-mi marathon?

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Q: is that the same answer if the unit is J/kg*K?

A: We know that the upper and lower fixed points in the Celsius scale and the Kelvin scales are…

Q: If the plane lands with a velocity of 95.5 mi/hr and comes to a stop in 21.3 seconds, what is the…

A: Given: The velocity of the plane = 95.5 miles/hr = 42.69 m/s Final velocity = 0 Time taken = 21.3…

Q: What kind of quantity is length?

A: Length is measure of the size of an object. Length is a measurable physical quantity with the help…

Q: The _____________ is the process of comparing an unknown quantity with a known quantity

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Q: How is he getting 1.21 m/s

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Q: Compute the distance covered by man travelling with speed of 5.5 m/s in 25

A: GivenSpeed of man=5.5 m/sTime Taken=2 s

Q: km/h, o of 3. The ship's resultant velocity is therefore, (Answers in 2 decimal places.)

A: This is the question from vectors. Resultant velocity can be determined by splitting the velocity…

Q: A common speed limit in Vancouver, British Columbia, is 70 km/hr. If you are going 45 MPH, are you…

A: As mentioned in the comment, we need to solve the E12 problem. Given: The speed limit is Vl=70 km/hr…

Q: A tortoise is walking in the desert. It walks at a speed of 3 meters per minute for 93.75 meters.…

A: Given Speed of the tortoise is v=3 m/min Distance covered by the tortoise is d=93.75 m   We have to…

Q: Dimetrodon treks at 1.9 m/s. How long would it take to walk 2.5 km? #12 Sig Figs

A: Given data-      Dimetrodon speed (u)= 1.9 m/s     distance travelled (d) = 2500 meter Explanation…

Q: The loading ramp at a delivery service is 15 ft long and makes a 19.0° angle with the horizontal. If…

A: First loading ramp delivered service = 15f And make angle = 19°

Q: the total distance traveled

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Q: what is the mass

A: Fireball is accelerated towards center , next step show explanation and final answer

Q: If a car is traveling at 45 mi/h, determine its speed in meters per second. Round to 3 significant…

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Q: If an object has a mass of 210g and the net force acting upon it is 5.0N, what is the

A: Given Values, Mass of object(m)=210gOr, (m)=0.21kgNet Force(F)=5N

Q: Please, I need to solve the question in less than an hour.

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Q: A man is standing near a window. The window is 7.14 meters tall. The man watches a falling atone…

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Q: The speed of sound is measured to be 342 m/s on a certain day. What is this in km/h?

A: Given data:  Speed of sound (v) = 342 m/s Required: Speed in km/h

Q: is the unit of Newtons.

A: The gravitational force on Earth is equal to the force the Earth exerts on you. At rest, on or near…

Q: 10. During an autopsy, the stomach was removed and the stomach and its contents weighed 1,250 grams.…

A: Weight of stomach was measured to be = 1250 grams

Q: An inclined plane is 2.2 m high and 4.2 m long. If the weight of the object to be moved is 4800 N,…

A: We have an inclined plane of height h=2.2 m length l=4.2 m. The weight of the object that is to be…

Q: min. A student drove to the university from her home and noted that the odometer reading of her car…

A: As Average Speed : s=distancetime=dt And as  d=19 km=19000 mt=23.5 min=1410 s So  s=190001410=13.47…

Q: What is this equation in physics

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Q: On an interstate highway in a rural region, a car is traveling at a speed of 38.0 m/s.

A: Conversion of units of speed 1 m/s  = 2.237 miles per hour 1 m/s = 0.000621 miles per second  1 m/s…

Q: A weight lifter can bench press 171 kg. how many miligrams (mg) is this?

A: This is the conversion from 1 kilogram to milligram

Q: 75N is equal to how much lb force?

A: The rate of change of momentum is called force. The SI unit of force is Newton. The force also…

Q: Round off the following numbers to three significant figures: (a) 58342 m, (b) 68.534 s, (c) 2553 N,…

A: Here we will convert each number one by one -  (a) 58342 m converting it into three significant…

Q: a prescription calls for 750 mg of drug L. After weighing this amount on a balance, which registers…

A: Given data:  Expected weight = 750 mg Actual weight = 720 mg Required: Percentage error

Q: A bird can fly 25km/h How long does it take to fly 3.5 km?

A: Speed of the bird,(S)=25 km/hr ----(1) [Given] Distance travel by the bird,(D)=3.5 km ----(2)…

Q: A man has a pace factor of 0.65/pace. If a distance on the ground was measured to be 45.50m, it…

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Q: What are the merits and drawbacks of using a person's foot as a standard?

A: Here , we have to think about using a person foot as a standard and answer about merits i.e…

Q: What concepts in Physics are used in the development of artificial intelligence?

A: What concepts in Physics are used in the development of artificial intelligence?

Q: Where can you apply physical quantities (in physics) in your daily activities?

A: Physical quantities are a characteristic or property of an object that can be measured or calculated…