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During osmosis describe why putting salt on a pork chop before cooking it on a grill is likely to result in a dry tough piece of meat
A hiker walks 3.5 km at an angle of 45 degrees north of west. Then the hiker walks 1.5 km south. What is the magnitude and direction of the hiker's totaly displacement?
What is the method of gas exchange of an Earthworm
The genome of virus SV40 is a circular double-stranded DNA molecule 5 kb long. A 1 kb region is amplified by PCR for four cycles. What fraction of the total DNA does the target sequence constitute?
The orientation of your vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded.
A single base change that does not change an amino acid just the codons
If the angle between the wires supporting the street lamp is reduced to 110°, what is the tension in each wire?
Lactose is a disaccharide of glucose and galactose,
Calculate the horizontal force that must be applied to a 1kg puck to make it accelerate on a horizontal freiction-free air table with the same acceleration it would if it were dropped and fell free
A beam of unpolarized light with intensity falls first upon a polarizer with transmission axis then upon a second polarizer with transmission axis
A 4000 kg truck is parked on a 15 degree slope. How big is the friction force on the truck?
What is the direction of acceleration of the rocket if the spring is compressed by 2.30 cm (Forward or Backward) What is the magnitude of acceleration of the rocket if the spring is compressed by 2.30
An artillery shell is fired with a minimal velocity of 410 m/s at 75o above the horizontal. To clear an avalanche, it explodes on a mountain side 45 s after firing. What is the X-coordinate relative
Compare the impulse and force for an abrupt (hard) and a cushioned (soft) collision. Use words and also sketch the force vs. time graphs.
A spring with spring constant 18 hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 7.5 and released. The ball makes 40 oscillations in 18
On a workday the average decibel level of a busy street is 72 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 50 every minute on a weekend, what is the dec
A 23g ball is fired horizontally with initial speed toward a 110g ball that is hanging motionless from a 1.1m long string. The balls undergo a head-on, perfectly elastic collision, after which the
A 38 kg skier skis directly down a frictionless slope angled at 15° to the horizontal. What is Fx if the magnitude of the skier's velocity is constant?
A 1.5 m-long, 750 g rope pulls a 5.0 kg block of ice across a horizontal, frictionless surface. The block accelerates at 5.0 m/s^2 . How much force pulls forward on the rope?
On the sunlit surface of Venus, the atmospheric pressure is 9.0 × 106 Pa, and the temperature is 740 K. On the earth's surface the atmospheric pressure is 1.0 × 105 Pa, while the surfac
If the static head (difference in height of fluid surfaces in the two tanks) is 9m, determine the expected flow rate. Do you think the pump is a good choice? Explain.
A second fragment, whose mass is 3.0 kg, moves away from the point of explosion with a speed of 382 m/s along the negative x axis. How much energy was released in the explosion?
What is the displacement of a car accelerating from 15m/s forward to 10m/s forward in 8.0s? An object accelerates at 9.8m/s^2 when falling. how long does it take an object to change its speed from 4.5
How long will it take for the train to completely pass through a half mile long tunnel? You may assume that there is no headwind inside the tunnel.