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The ink drops have a mass m = 1.00×10-11kg each and leave the nozzle and travel horizontally toward the paper at velocity v = 24.0m/s . The drops pass through a charging unit that gives each d
What is 20ml of liquid potassium to solid potassium
If a force is applied perpendicular to the direction of the momentum of an object, what happens to the magnitude of the momentum? Does it increase? Decrease? Stay the same?
When oxygen is added to an anaerobic suspension of cells consuming glucose at a high rate, the rate of glucose consumption declines dramatically as the oxygen is used up, and accumulation of lactate c
A rectangular file cabinet has a height of 71.1 cm, a width of 38.1 cm, and a length of 48.2 cm. Express its volume in scientific notation. Give your answer in units of cubic centimeters (cm3 ).
A bolt comes loose from underneath an elevator that is moving upward at a speed of 7 m/s. The bolt reaches the bottom of the elevator shaft in 3.5 s.
If pockets of the cell membrane fill with water and pinch off to become vacuoles inside the cell, what is this an example of?
A student has a mass of 90.0 kg, and the height of the water slide is 13.6 m. The kinetic frictional force does -6.30 103 J of work on the student. What is the student's final velocity?
The english physician ronald ross wanted to find the cause of malaria dr ross suggested that the anopheles mosquito was responsible for the spread malaria from person to person he used this as astarti
A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.10 s. At the end of this time, the boat continues for an additional 6.35 s with an acceleration of +0.518 m/s2. Following this, the
The coefficient of kinetic friction is 0.30. a) Draw a free body diagram showing the forces on the crate if the conveyor belt runs at constant speed.
A stone is dropped into a river from a bridge at a height h above the water. Another stone is thrown vertically down at a time t after the first is dropped. Both stones strike the water at the same
Changing one independent variable at a time in an experiment
Is the two buckets are pulled upward with an acceleration of 1.6 m/s/s by the upper cord, calculate the tension in each cord.
The giraffe's long neck is often used to explain the Lamarckian view of evolution.
So my question is in our physics lab each member in our group measured the dimensions and mass of a block multiple times. I wanted to know what are the advantages of making multiple measurements?
The rock brushes against the uppermost leaves and then falls back to the ground. If the rock is in the air for 2.3 s, how tall is the tree?
An air-track glider attached to a spring oscillates with a period of 1.50s . At t=0s the glider is 5.60cm left of the equilibrium position and moving to the right at 40.6cm/s .
Ernst Mayr has written that Darwin's theory contains five theories that relate to different aspects of variational evolution.
Waves on a swimming pool propagate at 0.720 m/s. You splash the water at one end of the pool and observe the wave go to the opposite end, reflect, and return in 30.0 s. How far away is the other end
Frogs are very sensitive to acid rain. How could this information be used to investigate your observation about the trees dying in the forest ?
The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Assume that only static friction supplies the centripetal force, and determine the radius r of
The diameter of the He atom is approximately 0.10 nm. Calculate the density of the He atom in g/cm3 (assuming that it is a sphere).
The pilot of an aircraft wishes to fly due west in a 31.1 km/h wind blowing toward the south. What should its speed relative to the ground be?
Describe in your own words the energy flow model of ecosystems.