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A stunt man drives a car at a speed of 20 m/s off a 35-m-high cliff. The road leading to the cliff is inclined upward at an angle of 20?.
How far from the base of the cliff does the car land?
What is the car's impact speed?
A microscope has a 12.0 x eyepiece and a 59.0 objective lens 20.0 cm apart. Calculate (a) the total magnification, (b) the focal length of each lens, and (c) where the object must be for a normal relaxed eye to see it in focus?
A plane is flying southwest at 155 mi/h and encounters the wind from the west at 45mi/h? what is the planes new velocity with respect to the ground in standard position.
What must the constant acceleration of the car be after the brakes are applied so that the car would come to rest at the stop sign.
Neglecting air resistance, how fast is it going when it hits the balloon? Illustrate what is the acceleration of the cannonball just before it hits the balloon?
A chemist must dilute of M aqueous silver nitrate solution until the concentration falls to M . He'll do this by adding distilled water to the solution until it reaches a certain final volume
If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block.
While John is travelling along an interstate highway, he notices a 139 mi marker as he passes through town. Later John passes a 116 mi marker. What is the distance between town and John's current location.
What can you conclude about the resulting displacements?
A 7.90×10-2-{rm kg} toy airplane is tied to the ceiling with a string. While the airplane's motor is started, it moves with a constant speed of 1.20m/s in a horizontal circle of radius 0.50m.
How to find out an initial speed of the bullet
Assume a constant upward slope of 32; calculate the horizontal and vertical components of the acceleration of a truck that slowed from 140 to rest in 7.3.
Two particles are fixed on x-axis. Particle 1 of charge q1 = -2×10^-7 C at x = 20 cm and particle 2 of charge q2 = +8×10^-7 C at x = 70 cm. At what x coordinate on the axis is net electric field produced by the particles equal to zero.
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