Look at the following diagram and determine which medium light travels SLOWER in, A or B, and why.

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A: The impulse acting on an object is calculated by using the formula J=F∆t , where F is the average…

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Q: A pulley, which can be modelled as a solid cylinder, has a total mass of 14 kg and a radius of 20…

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Q: You are driving at 25m/s. In order to pass a slow car, you increase your speed to 30m/s. It takes 5…

A: Given: Initial speed of car vi = 25 m/s final speed vf = 30 m/s time taken to reach final speed t =…

Q: Light travels in a straight line at a constant speed of 300,000 km/s. What is the acceleration of…

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Q: What is motion

A: To explain: Motion.

Q: How much force is needed to accelerate a 50 kg skier at 3 m/sec?

A: Write the given values with suitable variables. m=50 kga=3 m/s2 Here, m denotes the mass and a…

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: What is a Remark on Significant Digits explain breifly?

A: Sometimes in science or any other field, one is only interested to know the significant digits of…

Q: Johnny drives on a freeway at a constant speed of 100nmph and in a straight line, what is happening…

A: Acceleration is the rate of change of velocity.

Q: What is the acceleration of a car that moves at a steady velocity of 100 km/h for 100 s? Explain…

A: Write the expression for acceleration.

Q: Consider the pipe assembly in the Figure below. The applied forces are defined as F1 = (100i -120j…

A: Given: The applied force is given by F→1 = (100 i^ -120 j^ + 75 k^) kNF→2 = (-200 i^ +250 j^ + 100…

Q: What is acceleration? Acceleration is a change in over time.

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Q: What force would be needed to produce an acceleration of 4m/s2 in a ball of mass 6 kq ?

A: Given value--- acceleration = 4 m/s2.  mass = 6 kg. We have to find--- force ?

Q: Question ideal A small block, of 3.2 kg, is attoched to an mass constant 5.5 N/m ,and is doing…

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Q: If a force of 10 N accelerates an object 2 m/s?, the object's mass is kg

A: Given Force on an object = 10 N acceleration of an object = 2 m/s2 We have to calculate the mass of…

Q: car travels 16 km in 12 min, calculate the speed of the car, express your answer is mph there are…

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Q: What is the weight (in Newtons) of a 19 kg object

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Q: 2,3,1

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Q: 3,1,2

A: 3) Given that the kinetic energy of the is 75000 J and mass is 330 Kg  The formula used to calculate…

Q: (b) Deandre is hiking toward his campsite at a constant pace. A few miles from the campsite, he sees…

A: Solution: as given that Deandre is hiking for capasite with constant pace. he takes the different…

Q: Is the turtle speeding up or slowing down? Why?

A: Answer  the turtle is speeding up

Q: A car has a final velocity of 10 m/s and an acceleration of 2 m/s2. If it has been moving for 8…

A: Given: The final velocity of the car is 10 ms-1. The acceleration of the car is 2 ms-2. In the…

Q: Oscar can run 11 miles in 90 minutes,while candy can run 6 miles in 50 minutes.Who is the faster…

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Q: Decades describe as and 60MPH describe as 1. distance  2. time 3. speed 4. velocity  5.…

A: The Decades is a period of 10 years.  Miles per hour is the unit of speed

Q: Six slits in a diffraction grating. A set of waves is spreading out from each of the slits. Six…

A: λ=658nm

Q: Rank these speed measurements in increasing order from smallest (1) to greatest (5):   54.9 mi/h…

A: There are various speeds with different units and we have to rank these speed measurements in…

Q: The values below in boxes should be written in scientific notation: 8002 x 107 -10 1000 5 J.…

A: (i) 8002×10-10 m ⇒8002×10-10 m=8.002×103×10-10 m=8.002×10-7 m

Q: Why is it important to use proper equipment in playing badminton?

A: Investing in quality badminton equipment might be the difference between being a good player and…

Q: A bird flies 320 m south in 45s. What is the bird's speed O 0.14 m/s south 7.1 m/s 0.14 m/s O 7.1…

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Q: dind Ih hod

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Q: 13. A 4.50-kg child is swinging on a swing. If she is released from rest at a point 1.45 m above the…

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Q: completely lost, any help?

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Why is it 90o?

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Q: prave JA A -31

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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…