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An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. F1 is 28.6 N acting due East, F2 is 41.2 N acting due North, F3 is 47.8 N acting due West, and F4 is 10.8 N acting due South. How much total work is done on the object in 3.33 seconds, if it has a mass of 20.0 kg?
Waves moving on a lake have a speed of 2.8 m/s and a distance of 1.6 m between adjacent crests. Find the period of the wave motion
The uncertainty in a proton's position is 0.17 nm. What is the kinetic energy of a proton whose momentum is equal to this uncertainty
The average speed of blood in the aorta (the main blood vesselcoming from the heart) is 0.300 m/s. The average radius of theaorta is 1.0 cm. The aorta branches into 2×109 capillaries(very small blood vessels) which each have an average radius of 6..
A ball is attached to a center post by a string that is 0.481 m long. The ball is moving in a circle on a frictionless table top at a speed of 1.40 m/s with a radius of 0.481 m. What is the centripetal acceleration of the ball
An electron is measured to be within 1.0 um of a certain pont. Find the minimum uncertainty in the speed of the electron
You are playing basketball and go to toss the ball to a teammate who is 10 meter away. Obtain how fast must you throw the ball
A(n) 84 g arrow is fired from a bow whose string exerts an average force of 110N on the arrow over a distance of 80cm. What is the speed of the arrow as it leaves the bow.
at a given instant of time the temperature distribution within an infinite homogeneous body is given by the function tx
Lightbulbs with the power ratings giving in the figure are connected in a circuit as shown. Find the power dissipated to each bulb
A ray of light is traveling in a glass cube that is totally immersed in water. What is the refractive index of the glass
A box at rest has the shape of a cube 3.5m on a side. This box is loaded onto the flat floor of a spaceship, What is the volume of the box as we observe it
a spring that has a force constant of 1150 nm is mounted vertically on the ground. a block of mass 1.50 kg is dropped
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