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A crow flies in two consecutive displacements to a point that is 80mto the west. Its first displacement is 80m in a direction θ =50 degrees west of north.
1. What is the magnitude of its second displacement?
2. What is its direction as measured by the angle θ measured west from north?
a bullet of mass m1 is fired horizontally with a speed v into the bob of a ballistic pendulum of mass m2 find the maximum hight h attained by the bob
The largest moon of Pluto, Charon, was discovered in 1979. Charon is in a circular orbit of radius 19,600 km around Pluto, What is the total mass of the Pluto-Charon system
A transformer has 100 turns in its primary windings and 500 turns in its secondary winding. calculate the secondary voltage and current
A ball is thrown from the edge of a cliff that is 10.0 meters high. The ball is thrown at 10.0 m/s at an angle of 45 degrees above the horizontal. Find the total time of flight
A 5.3-cm-tall cylinderfloats in water with its axis perpendicular to the surface. Thelength of the cylinder above water is 1.4 cm. What is the cylinder's mass density
An iron bolt of mass 75.0 g hangs from a string 32.4 cm long. The top end of the string is fixed. Find the magnetic force on the bolt
Evaluate the magnitude and direction of the friction force (assumed constant) that acts on the bullet.
if the initial velocity of a cannonball is 40ms and the cannonball is launched at 72o above the horizontal how much
Several vectors in the x-y plane are shown in the figure with their tails at the origin of the coordinate system and with a label at their heads
A square wire 2.0 cm on each side is oriented so that 5.00 mT magnetic field makes a 30 degree angle with the normal to the plane of the square. how many loops does the wire make
Consider an alternating current of the form i(t) sin(2pit), where t is the time elapsed measured in seconds. (a) at what times is the magnitude of the current largest? (b) if this current were applied to a resistor, at what times would the magnitude ..
A projectile is fired at an upward angle of 45° from the topof a 288 m cliff with a speed of212 m/s. What will be its speed when itstrikes the ground below? (Use conservation of energy.)
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