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A time-varying horizontal force F(t) = At4 + Bt2 acts for 0.500 s on a 12.25-kg object, starting at time t = 1.00 s. In the SI system, A has the numerical value 4.50 and B has the numerical value 8.75. What impulse does this force impart to the object?
A small steel sphere of mass 0.40kg is attached by a 5.0m long cord to a swivel pin set into the surface of a frictionless table top. What is the magnitude of the centripetal accerleration of the sphere
Points A and B have electric potentials of 320 and 160, respectively. When an electron released from rest at point A arrives at point C, its kinetic energy is.
A standard deck of cards contains 52 different cards. How many different poker hands are there
Two .40 kg soccer balls collide elastically in a head on collision. The first l starts at rest and the second ball has a speed of 3.50 m/s after the collision, second ball is at rest. What is the final speed of the first ball.
An anchor shoots an arrow with a velocity of 45 m/s at the angle of 50 degrees with the horizontal.An assistant standing on the level ground 150 m downrange from the launch point throws an apple straight up into the air at th right time and speed ..
Both spacecraft are initially at rest. Explain how far does the starship move as it pulls the shuttlecraft aboard?
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3 , length 79.9cm, Calculate the weight of the rod, w
A car travelling at 25.0 {rm m/s} runs out of gas while travelling up a 22.0^circ slope. How far will the car go up the hill before it runs out of gas.
How much heat is released when a mixture containing 23.0 g CS2 and 23.0 g Cl2 reacts by the following equation CS2(g) + 3Cl2(g) ---> S2Cl2(g) + CCl4(g) delta H= -230 kJ
A crate of 45.2-kg tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move when your force exceeds 310N. find the coefficient of static friction between the crate and ..
pipe open at one end only has a fundamental frequency of 237 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off a portion of the open end. Currently, when both pipes vibrate at their fundamental frequencies, a beat ..
a spring is hung from the ceiling. a 0.45kg block is then attached to the free end of the spring. find the angular frequency of the block's vibrations
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