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Suppose a friend asks to examine the 10.0 kg box you were Given, hoping to guess what is inside; and you respond, "sure, pull the box over to you." she then pulls the attached cord along the smooth surface of the table. The magnitude of The force exerted by the person is Fp = 40.0 N, and is exerted at a 30.0o angle.
(a) Calculate the acceleration of the box.
(b) Calculate the magnitude of the upward force FN exerted by the table on the box.
Starting in the spring, fruit begins to grow on the outer end of a branch on a pear tree. Define how the center of gravity of the pear growing branch shifts all through the course of the summer.
A trombone has an effective length of 160 cm and the speed of sound in air is 345 m/s. Notes are selected by moving a U-shaped tube in or out to change effective length of the trombone.
q1. what is the magnitude of an objects average velocity if an object moves from a point with coordinates x 2.54 m y
Two people are carrying a uniform wooden board that is 3.40m long and weighs 145N. What force does the other person lift
Calculate the mass of a solid gold rectangular bar that has dimensions lwh = 4.30 cm 10.0 cm 20.0 cm. (The density of gold is 19.3 103 kg/m3.)
A spider hangs from a strand of silk whose radius is 4.0*10^-6m. Thedensity of the silk is 1300kg/m^3. determined the mass of the spider
Two balls undergo a perfectly elastic head-on collision, with one ball initially at rest. If incoming ball has a speed of 200 m/s. What is the final speed of the incoming ball if it is much more massive than stationary ball.
a 28 kg rifle bullet at an unknown velocity buries itself in a 3.6-kg pendulum hanging on a 2.8-m long string, what was the speed of the bullet prior to impact
A beam of electrons is accelerated from rest through a potential difference of 0.110kV and then passes through a thin slit, How wide is the slit
a particle is moving in the xy plane with constant acceleration. at t=0, it has a velocity of v=(4.00i-5.00j) m/s. At t=4.00 s, determine the acceleration of the particle (magnitude and direction)
You need to prepare a 0.187mm-diameter tungsten wire with a resistance of 3.43 ohm. How long must the wire be
Compute the centripetal acceleration of a point on Earth's equator given earth's 24 H rotation period. Compare your answer with g=9.80 m/s
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