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Question: A rocket starts from rest and moves upward from the surface of the earth. For the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay=(2.60m/s3)t, where the +y-direction is upward. What is the height of the rocket above the surface of the earth at t = 10.0 s ? What is the speed of the rocket when it is 255 m above the surface of the earth?
Att= 0 an electron crosses the positivey-axis (sox= 0) at30cm from the origin with velocity6.105m/s in the positivex-direction. It is in a uniform magnetic field.
Two 1.70 centimeter diameter disks spaced 1.80 millimeter apart from a parallel-plate capacitor. Determine the voltage across the capacitor
A coordinate system is chosen such that the sheets lie in the yz-plane, with sheet A at x = 0. A graph of the electric field as a function of x is shown at right below. Find the charge σB (sign and magnitude) of sheet B in terms of charge density ..
In certain ranges of a piano keyboard, more than one string is tuned to the same note to provide extra loudness. what beat frequency is heard when the hammer strikes the two strings simultaneously
The x-component of the velocity vector is measured at three locations 8 mm apart on the centerline of a symmetrical contraction. At points A, B, and C, the measurements produce 8.2, 9.4, and 11.1 m=s, respectively.
Suppose a simple pendulum is used to measure the acceleration due to gravity at various points on the Earth. find the corresponding variation in the period of the pendulum
A solid bowling ball with a radius of 10.9 cm and a mass of 7.3 kg rolls along a bowling alley at a linear speed of 2.4 m/s
A projectile is launched vertically from the surface of the earth with an initial speed v0 = 6.75 km/s. What is the magnitude of its acceleration (m/s2) 1620 km above the surface of the earth
A flatbed truck carries a load of steel. Only friction keeps the steel from sliding on the bed of the truck. The driver finds that the minimum stopping distance in which he can stop from a speed of 20.0 mi/h without having the steel slide forward in..
As they start to run Jonathan's dog leaves him and run towards Carlos at 7.0 m/s. Upon reaching Carlos the dog runs towars Jonathan and continues to run back and forth until they meet. What is distance traveled by the dog when the two finally hug ..
the air speed of a plane is 320km/h. A wind is blowing fromthe southeast at 129km/h. the piolet wishes to fly directly west. calculate the ground velocity of the plain
A 240 gram block slides back and forth on a frictionless surface between two springs. Determine the speed of the block as it moves between the springs
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