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Consider a group of 20 molecules with the following speeds: three have speed 1 m/s, four have 5 m/s, five have 9 m/s, and eight have 14 m/s. Determine the rms speed (in m/s) of the molecules in this group at this instant in time.
A projector lens having a focal length of 15 cm puts an image of a 35 mm slide on a screen 4 m away, How large is the image of the slide on the screen
Use the Fourier series method to evaluate the deviation of the bone subjected to the load, w, which is linearly dependent on its position
A refrigerator has a coefficient of performance equal to 6.00. The refrigerator takes in 150 J of energy from a cold reservoir in each cycle, Find the work required in each cycle
Pat builds a track for his model car out of wood. The track is 14.00 cm wide, 3.00 m long, Locate the horizontal coordinate of the center of gravity of this track
Suppose a disk of radius R and mass M starts from rest at a height of 2.5m, What is the linear speed of the disk when it leaves the incline
You find an unlabeled box of fine needles, and want to determine how thick they are. A standard ruler won't do the job, What is the diameter of the needle
The aorta is a major artery, rising upward from the left ventricle of the heart and curving down to carry blood to the abdomen, what is the magnitude (in m/s2) of the blood's centripetal acceleration
A drunk driver in a 1600 kg car plows into a 1500 kg parked car with its brake set. Police measurements show that the two cars skid together a distance of 19 m before stopping. If the effective coefficient of friction is 0.78, how fast was the dru..
An electron is initially at rest just outside a large copper surface that has the charge density of 1.20 x10-6 C/m2. How far has the electron moved in 1.07 x10-9 s if the field is uniform over this region.
A car is traveling at 66.2 mph. The driver applies the brakes and the car decelerates at 1.3 m/s2. What is the stopping distance
hiker starts at his camp and moves the following distances while exploring his surroundings: 75.0 m north, Find his resultant displacement from camp
Assume the ball leaves the table moving horizontally with this speed. If the table is 1 meter above the floor, what is the horizontal distance the ball travels before it hits the floor
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