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On a 2 lane road, car A is travelling with a speed of 36 km/h. Two cars B and C approach car A in opp directions with a speed of 54 km/h each. At a certain instant, when the distance AB is equal to AC, both being 1km, B decides to overtake A before C does. What minimum acceleration of car B is required to avoid an accident?
a physics instrustor shakes a 2.0 m long alumium rod to create the pattern, find is this a transverse wave or a longtudinal wave
A race car is moving with a velocity of 144 kilometers/hour. The driver applies the brakes, and the car comes to a halt in 12.0 seconds. What is the acceleration of the car after 12.0 seconds? A. -12 m/s^2 B. -3.3 m/s^2 C. 3.3 m/s^2 D. 10.3 m/s^2
An object has a kinetic energy of 267 J and a momentum of magnitude 21.7 kg•m/s. Find out the speed and the mass of the object.
Baseball scouts often use a radar gun to measure the speed of a pitch, What will be the increase in frequency if these waves are reflected from a 60.0mi/h fastball headed straight toward the gun
A charge of -2.87 ?C is fixed in place. From a horizontal distance of 0.0470 m, a particle of mass 7.43 x 10-3 kg and charge -9.14 ?C is fired with an initial speed of 60.0 m/s, How far does the particle travel before its speed is zero
While messing around with billiard balls, you roll the 8-ball into another ball of the same mass and initially at rest. After the collision, Find the original speed of the cue ball
suppose that the cross section of the hose opening is circular with a radius of 1.5 centimeters.
An insect 5.50mm tall is placed 25.0cm to the left of a thin planoconvex lens. The left surface of this lens is flat, Calculate the size of the image
The occupant of a small vechical hears a frequency of 1.5x10^3 Hz emitted from a stationary space buoy, What is the speed of sound on the planet
a 27.2 g arrow is fired with a velocity of 87.3 m/s from a bow with a mass of 2.45 kg. Find the impulse on the arrow
The magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.700 m and an outer radius of 1.30 m. Find the magnitude of the magnetic field inside the toroid along the outer radius
At one point in a pipeline, the water's speed is 3 m/s and the gauge pressure is 4.00×10^4 Pa. Find the gauge pressure at a second point in the line 11 m lower than the first if the pipe diameter at the second point is twice that at the first.
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