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A jogger runs directly east for 4 km, then turns and goes northwest for 6 km. He then travels directly south for 5 km.
1. How far is he from the starting point? (Km)
2. In what direction is he from the starting point (gauged as an angle counter wise from the east axis, units are deg)? (Northwest is the direction lying precisely half way between west and north.)
A 5.00 g bullet is fired into a 500g block of wood suspended as a ballistic pendulum. What was the magnitude of the momentum of the combined mass immediately after the collision
a child sits on the outer edge of a 18 m radius merry-go-round. if the parent applies a tangential acceleration of 2.5
A uniform 1.7-kg rod that is 0.97 m long is suspended at rest from the ceiling by two springs, one at each end. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring constants are..
A 4.1 g coin sliding to the right at 26.2 cm/s makes an elastic head-on collision with a 12.3 g coin that is initially at rest. Find the final velocity of the other coin
Three moles of an ideal monatomic gas are at a temperature of 393 K. Then 2568 J of heat is added to the gas, and 631 J of work is done on it. What is the final temperature of the gas
You place 96 moles of hydrogen gas in aballoon of volume 2.6 m3, andfind the pressure to be 1.4 timesatmospheric pressure. What is the typical speed of a hydrogen molecule
While working in a research lab, you find that it takes396 J of heat to increase the temperatureof 0.99 kg of a material by 32 K. What is the specific heat of the material
two capacitors c1 4.00microf and c2 14.0microf are connected in series to a 9.00 v battery.a find the equivalent
The positron is a particle with the same masses as an electron however charges +e. a positron in a bubble chamber moves perpendicular to a 4.0 T magnetic field. If the positrons kinetic energy is 25eV what is the radius of its trajectory in a bubble ..
An AC voltage source has an output voltage given by Δv = (155 V) sin377t. Discover the rms voltage output. Discover the frequency of the source.
Low-frequency vertical oscillations are one possible cause of motion sickness, with 0.20 hz having the strongest effect. How much time elapses between two waves hitting the ship
The two stars in a binary star system have masses 1.9 x 10^30kg and 6.1 x 10^30kg. What is the speed of the heaviest star
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