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A rectangular plate has a length of (21.3±0.2) cm and a width of (9.8±0.1 cm. Calculate the area of the plate, including its uncertainty.
A frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal. It is 1.8 meters long and 0.9 meters high. How far along the rough patch do the blocks go before stopping
A sample of an unknown material appears to weight 300N in air and200N when immersed in alcohol of specific gravity 0.700. What are(a) the volume and (b) the density of the material?
To measure the static friction coefficient between a 4.78-kg block and a vertical wall, the setup shown in the drawing is used. what is the coefficient of static friction
How much energy is delivered to the battery. What is the velocity v of the smaller fish before lunch.
a test rocket is fired vertically upward from a well. a catapult gives it an initial speed of 81.0 ms at ground level.
A sign (mass 1900 kg) hangs from the endof a vertical steel girder with a cross-sectional area of0.18 m2. (Ignore the mass ofthe girder itself.) What is the stress within the girder
A 0.48-kg object connected to a light spring with a force constant of 23.6 N/m oscillates on a frictionless horizontal surface. The spring is compressed 4.0 cm and released from rest.
A 2.5-kg cart is rolling along a frictionless, horizontaltrack towards a 1.5-kg cart that is held initially at rest. Thecarts are loaded with strong magnets that cause them to attract oneanother. Thus, the speed of each cart increases.
develop the full fourier series for the function fx xa over the range 0 lt x lt 2b over the range -2 lt x lt 2c make a
a solid disc with radius r is is spinning. an object exerts a force f at the edge of the disc to slow down the disc.
The angle of incidence at a solid/liquid boundary is 75.9°, and the index of refraction of the solid is n = 1.50. What is the largest index of refraction that the liquid can have
A 2590-kg van runs into the back of a 821-kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with the road is negligible, calculate the initial speed of the van
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