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A BMW M3 sports car can accelerate in third gear from 48.3 km/h (30 mi/h) to 80.5 km/h (50 mi/h) in 3.7 s.
(a) What is the average acceleration of this car in m/s2?
(b) If the car continued at this acceleration for another second, how fast would it be moving?
A rocket is launched vertically from rest; and it burns fuel at a constant rate of 136 kg/s. Exhaust gases are expelled with a speed of 5.25 x 10^3 m/s relative to the rocket. what is the magnitude of the thrust?
A 1000-kg car travelling at a speed of 32 m/s skids to a halt on wet concrete where f_k = 0.3. How long are the skid marks.
An electromagnetic wave has an electric field amplitude of 318 V/m. What is the root mean square of the electric field of the wave
A brick is thrown at a speed of 72 mph at a wall that is 15 ft away. How much force does the wall exert on the brick and in what direction
An 9.00 {rm kg} point mass and a 15{rm kg} point mass are held in place 50{rm cm} apart. A particle of mass m is released from a point between the two masses 19{rm cm} from the 9{rm kg} mass along line connecting the two fixed masses.
An electron is in the spin state x= A(1-2i/2). Determine the constant A by normalizing x.
A basketball rolls without slipping down an incline of angle ?. The coefficient of static friction is ?s. Model the ball as a thin spherical shell. (Use any variable or symbol stated above along with the following as necessary: m for the mass of the ..
a copper puece of mass 140g and of temperature 240 degree is placed into 360g of water at temperature 25 degree. Find the final equilibruim temperature
Two identical aluminium objects are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at the higher potential.
You throw a ball straight down from an apartment balcony to the ground below. The ball has an initial velocity of 4.95 m/s, Find the height of the balcony
A thin spherical shell of mass 0.450 kilogram and diameter 0.230 meter is filled with alcohol (ρ = 806kg/m3). Evaluate the acceleration of the alcohol-filled shell
Given a double slit apparatus with slit distance 2 mm, what is the theoretical maximum number of bright spots that I would see when I shine light with a wavelength 400 nm on the slits?
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