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Question1
A sailboat is being propelled westerly by the wind at 4m/s. If the current is flowing 2m/s to the northeast, where will boat be in 10 min with respect to its starting position?
Question2
A metal sphere of radius 5.00 cm is initially uncharged. How various electrons would have to be placed on the sphere to produce an electric field of magnitude 1.61 105 N/C at a point 7.82 cm from the center of the sphere?
Question3
A hot-air balloon is rising upward with a constant speed of 2.54 m/s. When the balloon is 3.09 m above the ground, balloonist accidentally drops a compass over the side of the balloon. How greatly time elapses before the compass hits the ground?
A 222-V battery, an inductor, and a resistor are connected in series as shown in the diagram below. what is the voltage across the inductor
The position of a particle moving along an x axis is given by x = 22t2 - 3.0t3, where x is in meters and t is in seconds. Determine the position, velocity, and acceleration of the particle
The Earth's radius is about 4000 miles. Kampala, the capital of Uganda, and Signapore are both nearly on the Equator. What is the plane's angular velovity with respect to the Earth's durface
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles, What is the force between the two alpha particles
Billy has a bucket that has a mass of 150 g, in which he put 150 g of fresh water. He has tied 150-cm of string to the handle of the bucket.
Pennies today are copper-covered zinc, What are the total positive charge and total negative charge in a solid copper penny that is electrically neutral
A standing observer perceives a train whistle to have a frequency of 300 Hz. calculate the frequency of the sound waves emitted from the train
A 601N athlete standing on one foot on a very smooth gym floor lifts his body by pivoting his foot upward through a 30.0? angle, What is the tension in the Achilles tendon
A 3.00-kg block starts from rest at the top of a 33.0° incline and slides 2.00 m down the incline in 1.75 s. Find the frictional force acting on the block
A child is in danger of drowning in the Merimac river. The Merimac river has a current of 3.1 km/hr to the east, How far from the dock does the boat reach the child
Two protons that are very far apart are hurled straight at each other, each with an initial kinetic energy of 0.21 MeV, What is the separation of the protons from each other
Object A is acted on by only object B. The mass of object A is 20.0 kg and its acceleration is 4.00 m/s2 west. Object B is acted on by two forces, the force of object A on object B and another unknown force.
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