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Q. The brick wall of a building has dimensions of by and is thick. How much heat ?ows through the wall a period when the average inside and outside temperatures are, in that order.
Q. A shell is fired from the ground with an initial speed of 1.58 x10^3 m/s at an initial angle of 51° to the horizontal.
(1) Neglecting air resistance, find the shell's horizontal range.
(2) Find the amount of time shell is in motion.
What is tension in each string
A 64 kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.15. What would be the magnitude of acceleration.
What is the block's distance from equilibrium as the speed are 36 cm/s? What is block's position at t=1.0 s.
Four charges are placed at the vertices of a square, centered at the origin. If each side of the square has a length of 0.224 m, what is the strength and direction of net electric field at the origin? Express your answer in terms of the charge ma..
Displacement d2 is in the xz plane 30° from the positive direction of the x axis, has a positive z component, and has magnitude 1.10 m.
An archer shoots an arrow horizontally at the target 14 m away. The arrow is aimed directly at the center of target, but it hits 59 cm lower.
A wire streches from the top of a vertical pole to a point on level ground 16 feet from the base of the pole. if the wire makes an angle of 62 degrees withe the ground, find the height of the pole and length of the wire.
Consider the conical pendulum with an 80.0 kg bob on a 10.0 m wire making an angle of 5.00 with the vertical as shown. Determine (a) horizontal and vertical components of the force exerted by the wire on the pendulum and (b) radial acceleration of th..
A rocket ship at rest in space gives a short blast of its engine, firing 90 kg of exhaust gas out the back end with an average velocity of 700 m/s.
A ceiling fan with 89 diameter blades is turning at 65. Presume the fan coasts to a stop 30 after being turned off. Throughout how many revolutions does the fan turn while stopping.
What is the horizontal distance x to the base of the wall supporting the mirror of the near point on the floor that can be seen reflected in the mirror . What is the speed of the third fragment? Overlook effects due to gravity.
1.76- block at rest on a ramp of height. While the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 12.0 that has a coefficient of kine..
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