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Question1
A ferryboat transports tourists among three islands. It sails from the first island to the second island, 5.98 km away, in a direction 37.0° north of east. It then sails from the second island to the third island in a direction 78.0° west of north. At last, it returns to the first island, sailing in a direction 28.0° east of south.
(a) Compute distance between the second and third islands. (b) Compute distance between the first and third islands.
Question2
The gravitational force exerted on a baseball is 2.29 N down. A pitcher throws ball horizontally with velocity 16.0 m/s by uniformly accelerating it all along a straight horizontal line for a time interval of 168 ms. the ball starts from rest.
What are magnitude and direction of the force the pitcher exerts on the ball?
To stretch a relaxed biceps muscle 2.30cm requires a force of 25 N. Find the Young's modulus for muscle tissue assume it to be a uniform cylinder of length 0.24 m and cross-sectional area 51 cm2.
what is the thermal kinetic energy in 1kg of oxygen gas at 20 degrees celsius? What fraction of this energy is translational
A 35-kg child is holding for dear life on a playground merry-go-round that has a radius of 2.5m and is turning at a rate of one turn every 5 seconds. What's is the child's acceleration relative to the ground
Two sinusoidal waves traveling in opposite directions interfere to produce a standing wave with the wave function y = (1.00) sin(0.800x) cos(300t), Determine the wavelength of the interfering waves
A 70-kg astronaut is space-walking outside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer at a speed of 14 m/s away from the capsule.
In Europe, the standard voltage is 240 V (rms), AC, and 50 cycles/s. Suppose you take your 5.00 W electric razor to Rome and plug it into the receptacle, What is the resistance of your razor
Three resistors, 28, 48, and 80 ?, are connected in series, and a 0.53-A current passes through them, What is the equivalent resistance
a 2.3 kg object attached to an ideal spring is undergoing simple harmonic motion. its displacement is given by function, what is the maximum accleration of the object
A 67? resistor, an 9.0?F capacitor, and a 36mHinductor are connected in series in an ac circuit. Calculate the impedance for a source frequency of 300 Hz
A 71kg student runs at 6.0m/s , grabs a hanging rope, and swings out over a lake. He releases the rope when his velocity is zero, What is the angle when he releases the rope
The latent heat of vaporization of H2O at body temperature (37.0°C) is 2.45E+6 J/kg. how many kilograms of water in the form of sweat have to be evaporated
In what time interval does it reach this velocity. How high would the insect jump if air resistance were negligible.
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