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A 63 kg swimmer jumps off a 9.5 m tower. The swimmer comes to a stop 2.0 m below the surface. Find the net force exerted by the water.
You can determine the speed of a moving bullet by allowing the bullet to pass through two rotating paper disks mounted a distance.
Two meters from the left end is the 500 N washing equipment. Joe is 0.500 m from the right end and weighs 920 N. Given that the scaffold is in rotational and translational equilibrium, what are the
A car traveling at a constant speed of 18.5 m/s passes a trooper hidden behind a billboard. One second after the speeding car passes the billboard, the trooper sets off in chase with a constant acce
A 52 kg box is being pushed a distance of 7.0 m across the floor by a force vector P whose magnitude is 165 N. The force vector P is parallel to the displacement of the box. The coefficient of kinet
What are the magnitude and direction of the electric field 12.0 cm directly above an isolated 45.9 10-6 C charge? 1 N/C 2 ---Direction--- away from the positive charge neither of these toward the posi
A conducting coil of 1800 turns is connected to a galvanometer, and the total resistance of the circuit is 50.0. Find the magnitude of the magnetic field.
A 747 airliner reaches its takeoff speed of 170 in 35.3. What is the magnitude of its average acceleration?
A rifle that shoots bullets at 436 m/s is to be aimed at a target 44.2 m away. If the center of the target is level with the rifle, how high (in cm) above the target must the rifle barrel be pointed
A two-ended "rocket" that is initally stationary on a frictionless floor, with its center a the origin of an x axis. The rocket consists of a central block C(of mass M = 6.00kg) and blocks L and R (
A 195 pF capacitor is connected in series with an unknown capacitor, and as a series combination they are connected to a battery with an emf of 24.0 V. If the 195 pF capacitor stores 125 pC of char
An airplane with a mass of 2.6 106 kg. has the air flow past the lower surface of the wings at 100 m/s. If the wings have a surface area of 1200 m2, how fast must the air flow over the upper surface
The particle is moving in the +z direction solve the Schrodinger equation to derive the allowed wave functions for this particle.
A carpenter places a board weighing 30 lb on the edge of the roof 24 ft above the ground. How much potential energy does the board have in relation to the ground?
A cannon tilted upward at 20° fires a cannonball with a speed of 120 m/s. What is the component of the cannonball's velocity parallel to the ground?
You are swinging your younger sister in a horizontal circle of radius 0.81 m. Her mass is 26 kg and you arrange it so she makes one revolution every 1.5 s.
A car (mass= 1100 kg) is traveling at 32 m/s when it collides head-on with a sport utiliity vehicle (mass = 2500kg) traveling in the opposite direction. in a collision, the two vehicles come to a ha
Are there any special electromagnic properties that exist around aldabra that could be harested and used for future propolsion systems?
The ladder makes a 50 degree angle with the ground. How far up the ladder can an 800 newton person climb before the ladder begins to slip?
What is the electric potential energy of the system? (Take as zero the potential energy of the three charges when they are infinitely far apart.) Use = 8.85×10-12 for the permittivity of free
he block starts to move down as the spring is compressed. What is the maximum distance the block will travel?
How does the direction and magnitude of the force applied to the projectile by the catapult will affect the distance the projectile travel's and the accuracy of the system as a whole?
What must the charge (sign and magnitude) of a 1.40-g particle be for it to remain stationary when placed in a downward-directed electric field of magnitude 660?
Two positive point charges are 7.05 cm apart. If the electric potential energy is 63.2 mJ, what is the magnitude of the force (in mN) between the two charges?
A 0.30 kg softball has a velocity of 12 m/s at an angle of 35° below the horizontal just before making contact with the bat. The ball leaves the bat 2.0 ms later with a vertical velocity