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An 11.3 g bullet leaves the muzzle of a riflewith a speed of 570.5 m/s.What constant force is exerted on the bulletwhile it is traveling down the 0.9 m length ofthe barrel of the rifle?Answer in units of N.
A uniform drawbridge must be held at a 37 deg. angle above the horizontal to allow ships to pass underneath. Find the direction and magnitude of the force the hinge exerts on the bridge
The first car has twice the mass of a second car, but only half as much kinetic energy. When both cars increase their speed by 9.0m/s, What were the original speeds of the two cars
Important information about Initial kinetic energy of the object Point A is situated at the bottom of a rough plane which is inclined at 45 degrees to the horizontal. A body of mass 0.5 kg is projected from A along and up the line of greatest slop..
Spring loaded gun fires a projectile to a heighten when fired straight up. What max height will the projectile reach when fired at an angle 45° from the vertical
If a car , moving at 15 m/s , drives over a 30m cliff. How fast is it moving vertically when it hits the ground
A 40 kg girl, standing at rest on the ice, gives a 60 kg boy, who is also standing at rest on the ice, a shove, What is the girl's speed
A disk, initially rotating at 149 rad/s, is slowed down with a constant angular acceleration of magnitude 4.23 rad/s2. (a) Explain by how much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate during that time?
A cubic centimeter in a typical cumulus cloud contains 50 to 500 water drops, which have a typical radius of 10 µm. How much mass does the water in the cloud have
The object is authorized to move on a horizontal frictionless surface. The object is released from rest when the spring is compressed 0.15 m. Find out the force on the object.
A small object of mass 4.06 g and charge -16.5 µC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground
Eris, the largest known dwarf planet in the Solar System, has a radius R = 1200 km and an acceleration due to gravity on its surface of magnitude g = 0.77 m/s2. Use these numbers to calculate the escape speed from the surface of Eris
An ideal transformer has 255 loops in its primary coil and 125 loops in its secondary coil. what is the rms secondary voltage
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