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The car's acceleration between 25s and 30s can be calculated by determining the change in velocity during that time interval and dividing it by the time elapsed. Acceleration = (final velocity - initial velocity) / time. You need to know the initial and final velocities of the car during that time period to calculate its acceleration.

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What is the acceleration of a truck if it accelerates from rest to 18mpers in 30s?

v = u + at a = (v - u) / t u = 0 , v = 18 ms-1 , t = 30 s a = 18 / 30 = 0.6 ms-2


How do you find acceleration when given only mass?

Well, honey, without knowing the force acting on that mass, you can't calculate acceleration. It's like trying to bake a cake with just flour and no recipe - you're missing a crucial ingredient. So, unless you have the force thrown into the mix, you're out of luck in finding that acceleration.


What is the average speed of a car travelling 600m in 30sec.?

First find the acceleration rate (actually deceleration in this case). Equation is a = (v2- u2)/2s where a = acceleration, v = final velocity, u = initial velocity, s = distance but remember you must use consistent units, 60 km/hour = 16.67 meters/sec so v = 0, u = 16.67 so a = -16.672/2 x 30 = - 4.63 meters/sec2 , time = (v - u)/a = 16.67/4.63 = 3.60 secs.


How many electrons pass through a conductor in 1 min and 30s if the current is 4mA?

To calculate the number of electrons passing through a conductor, we first convert the current to coulombs per second (C/s) by multiplying 4mA by 10^-3 to get 0.004A. Then multiply this by the total seconds in 1 min and 30s (90s) to get 0.36 coulombs. Since 1 electron has a charge of 1.6 x 10^-19 coulombs, divide the total charge by the charge of one electron to find the number of electrons passing through the conductor (0.36 / 1.6 x 10^-19 ≈ 2.25 x 10^18 electrons).


A sinusoidal wave is traveling along a rope The oscillator that generates the wave completes 40 vibrations in 30s Also a given maximum travels 425cm along the rope in 10s What is the wavelength?

Wavelength = (speed) divided by (frequency)Speed = 425/10 = 42.5 cm/secFrequency = 40/30 = 4/3 Hz.Wavelength = 42.5 / (4/3) = 42.5 x (2/3) = [28 and 1/3] cm.

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