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An earth satellite remains in orbit at a distance of 17811 km from the center of the earth. What speed would it have to main- tain? The universal gravitational constant is 6.67 × 10-11 N &mid
A hammer taps on the end of a 3.17 m long metal bar at room temperature. A microphone at the other end of the bar picks up two pulses of sound, one that travels through the metal and one that travel
Find the electric feild a distance 'z' above one end of a strait line segment of lenth 'l' which carries a uniform line charge 'lamda' ?
The value of the gravitational field strength at your location is 9.792 N/kg. How high above sea level, where the gravitational field strength was measured to be 9.803 N/kg, are you located?
What are the two basic schools of thought regarding the demographic transition?
Determine the minimum distance, x, from point A at which an additional weight w (the same as the weight of the rod) can be hung without causing the rod to slip at point A.
How fast would you need to drive the Mini Cooper in this tight circle to match the magnitude of the Mustang's acceleration?
If the football has a mass of 0.45 kg and the time of contact with the ball is 0.015 s, what is the magnitude of the force exerted by the ball on the kicker's foot?
A pet-store supply truck moves at 25m/s north along a highway. Inside, a dog moves at 1.85m/s at an angle of 35° east of north. What is the velocity of the dog relative to the road?
A rifle with a weight of 30 N fires a 5.0-g bullet with a speed of 300 m/s. Find the recoil speed of the rifle.
A proton is shot straight away from the plane at 1.60 times 10^{6};{rm m}/{rm s}. How far does the proton travel before reaching its turning point?
What effect will increase in temperature from 25 degree celcius to 32 degree celcius of the metal metre stick have on the measurement of the dimension of a rectangular block? Why are corrections no
A wire has a resistance of 5.0 ? is passed through an extruder so as to make it into a new wire three times as long as the original. What is the new resistance?
The amplitude of the driving force is 0.480 N and the amplitude of the oscillator's steady-state motion in response to this driving force is 0.864 m. What is the oscillator's damping constant?
He notices a 143 mile marker as he passes through town. Later john passes a 110 mi marker. what is the distance between town and john's current location?
An Atwood's machine consists of blocks of masses m1 = 10.1 kg and m2 = 18.4 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 8.30 kg
A force of 120 N is applied to the front of a sled at an angle of 28.0o above the horizontal so as to pull the sled a distance of 165 meters. How much work was done by the applied force?
A block of mass m = 0.870 kg is fastened to an unstrained horizontal spring whose spring constant is k = 98.0 N/m. The block is given a displacement of +0.120 m, where the + sign indicates that the
How far will the trampoline stretch if the performer stands still on it while taking a bow?
A ladybug sits halfway between the axis and the edge of a phonograph record. What will happen to its tangential speed if the RPM rate is doubled? At this doubled rate, what will happen to its tange
If the human cannonball spends 0.78 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.
If the eletric flux through a rectangular area is 5.0Nm^2c, and the electric field is then doubled,what is the resulting flux throug the area?
Sir George's acceleration has a magnitude of 0.18 m/s2, while Sir Alfred's has a magnitude of 0.29 m/s2. Relative to Sir George's starting point, where do the knights collide?
By what minimum amount must the difference of the path lengths be increased in order to hear destructive interference again?
A spelunker is surveying a cave. She follows a passage 150m straight west, then 290m in a direction 45° east of south, and then 280 m at 30° east of north. After a fourth unmeasured displacement, s