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Q. A baby elephant is fixed in a mud hole. To help pull it out game keepers use a rope to apply a force A as part a. By itself, though, force A is insufficient. Therefore, two additional forces B and C are applied, as in part b. Each of these additional forces has the same magnitude F. The magnitude of the resultant force acting on the elephant in part b is k times larger than that in part a. find the ratio F.
As part of the safety investigation, two 1400 {rm kg} cars travelling at 23 {rm m/s} are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.7 {rm s} to stop, and (b) car that hits..
According to the law of universal gravitation, what will happen to Earth if the Sun were somehow replaced by the black hole of same mass.
A force vector points at an angle of 64.9 ° above the +x axis. It has a y component of +276 Newton's (N). Find out (a) magnitude and (b) x component of the force vector.
The distance between deer B and C is 92 m. What is distance between deer A and C.
A dentist uses a small mirror with a radius of 36 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 16 mm from the tooth, what is the magnification of an image.
An 8.70 block slides with an initial speed of 1.56 down a ramp inclined at the angle of 23.6 with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.69.
A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, the origin, at t = 0 and moves to the right. The amplitude of its motion is 1.70 cm and the frequency is 1.30 Hz.
A light spring of force constant k = 156 N/m rests vertically on the bottom of a large beaker of water. A 5.55-kg block of wood (density = 650 kg/m3) is connected to the spring, and block-spring system is allowed to come to static equilibrium. Wha..
A recent tomb has been unearthed in Egypt that shows the set of wall paintings and hieroglyphics of stars falling to and rising above the horizon over the course of the year (these stars served as sentinels for the pharaoh's passage through the un..
What force does the water exert on the man. explain how far does the tongue reach.
Find the coefficient of friction between crate and floor
What is the coefficient of static friction
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