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A delivery truck travels 32 blocks north, 16 blocks east, and 26 blocks south. Assume the blocks are equal length. What is the magnitude of its final displacement from the origin?
Express your answer using two significant figures.
The coefficient of kinetic friction between a 20 Kg box and the floor is 0.40. How much work does a pulling force do on the box in pulling it 8.0 m at the constant speed? The pulling force is directed 390 above the horizontal.
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 11.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge ha..
Two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 N. If one person applies an upward force equivalent to 60 N at one end, at what point does the other person lift . If the tangential acceleration of a yo-yo at the en..
Transvers waves: Speed of wave on streatched string. Two steel wires are stretched with the same tension. The first wire has a diameter of 0.610 mm and the second wire has a diameter of 0.910 mm
In which collision is the impulse on the cart greater. The magnitude of the charge on an electron is 1.6e-19 C
A rifle with a barrel length of 58 fires an 11 bullet with a horizontal speed of 370. The bullet strikes a block of wood and penetrates to a depth of 15.
Find out the x and y components of the force.
A 145 g copper bowl contains 205 g of water, both at 20°C. A very hot 300 g copper cylinder is dropped into the water, causing the water to boil, with 5.40 g being converted to steam.
if the box is moving at a constant speed of 0.35m/s and the coefficient of kinetic friction is 0.12. What is the magnitude of F.
The third floor of a house is 6.00 m above street level. How much work is essential to move a 159 kg refrigerator to the third floor.
Two loudspeakers are placed next to each other and driven by the same source at a frequency of 570Hz. A listener is in front of the speakers and on the line separating them.
A certain particle has the life time of 10^-7 s, while measured at rest. How far does it go before decaying if its speed is 0.99 c when it is created.
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