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Explain how horizontal motioncan be uniform while vertical motion is accelerated.How will projectile motion be affected when dragdue to air resistance is taken into consideration?
A uniform rod rotates in a horizontal plane about a vertical axis during one end. The rod is 6.00m long, weighs 10.0 N, and rotates at 240 rad/min. Compute (1) its rotational inertia about the axis of rotation and (2) the magnitude of its angular mom..
a small coil has a cross section of 5.5 cm2 and consists of 18 turns of wire. if the loop carries a current of 100 ma
Assume you want to produce photoelectrons with kinetic energy 1.90 eV from a copper target. Find what wavelength of electromagnetic radiation should you use
A boxer stops a punch with his head. To approximate the force of the blow, treat the opponent's glove, hand, and forearm as a particle of mass 1.33 kg moving with an initial velocity of 18.5 m/s. Estimate the force exerted on the head if the hand mov..
An alpha particle, which is a helium nucleus, has a mass of 6.64*10^-27 kg. It is travleing horizontally at 42.3 km/s when it enters a uniform, What is the diameter of the path followed by the alpha particle
Sally travels by car from one city to another. She drives for 30.0 min at 69.0 km/h, 37.0 min at 34 km/h, and 54min at 74.0 km/h and she spends 13.0 min eating lunch and buying gas.
A speeder is pulling directly away and increasing his distance from a police car that is moving at 27 m/s with respect to the ground. Find the speeder's speed with respect to the ground
3 30 pound kegs are stacked on a dolley (2 on top of each other and the third on top of both of them opposite of the dolley back (they form kind of a triangle)). Calculate the force the dolley wheel exerts ON the floor
A 1200kg car (A) traveling due north at 25m/s collides with a 2000kg truck traveling due west at 18m/s. What is the velocity of the wreckage just after the collison
A cylindrical container (open at the top) is 1.0 m tall andcontains mercury to a certain depth, d. The rest of thecylinder is filled with water that is on top of the mercury. If the pressure at the bottom of the cylinder is two atmospheres,what is..
In one minute of rotation, through how various revolutions did fan turn?
Three point charges are arranged on a line. Charge q3 = +5.00nC and is at the origin. Charge q2 = -3.50nC and is at x = 3.50cm. Charge q1 is at x = 2.50cm. What is q1 (magnitude and sign) if the net force on q3 is zero?
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