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Use either trigonometry or components to find the displacement that will return Bob to his starting point by the most direct route. Give your answer as a distance.
A 0.151 kg baseball is pithed with a velocity of 43.1 m/s. Ignoring air resistance, what is the baseball's momentum after being pitched?
A current is connected to 115-volt power source. If a current of 5 amps flows in the wire, what is the resistance of the circuit?
A car and a truck are heading directly toward one another on a straight and narrow street. Find the distance between the two vehicles when they come to a stop.
Explain how a sound is actually a form of energy? In what medium do sound waves travel?
Explain how medical magnetic resonance imaging (MRI) exploits the magnetic properties of the nucleus.
2500 Essay question for Biological Principles and Cells and Genes. Written exam with no material in the examination room.
A 130 gram arrow is shot straight up with an initial velocity of 20 m/s. What is its initial kinetic energy? To what height does the arrow go?
The coefficient of kinetic friction between the block and the incline.
The car now stops, and the four people get out. By how much does the car body rise on its suspension owing to this decrease in weight?
Rules for organizing stimuli into coherent groups
For this 6.00-min trip, find (a) the total vector displacement, (b) the average speed, and (c) the average velocity. Let the positive x axis point east.
Is the neolecta irregularis autotrophic and does it have any special seed dispersal methods
A speeding car passes a highway patrol checkpoint and then accelerates at a constant rate. 3.15 s later, the car is 240 m from the checkpoint and its speed is then 33.7 m/s. What is the acceleratio
Determine the satellite's altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 1024 kg. The value of the universal gravitational
What is the pressure potential of a .4M NaCl solution in an open water bath @ 25 degrees Celsius?
The external forces on an airplane in flight reading eastward are as follows; weight=17KN downward; left=17KN upward; thrust=1.4KN east and drag-2.2KN west. What is the net force on the plane?
A gardener pushes a box of tools across a driveway by applying a 27.5- N force that pushes downward at an angle of 32.0 o with respect to the horizontal. How much work is done if the box moves 4.25
What are systems that had to evolve to support cellular respiration in multicellular animals
To which structure would you assign the function of secretion activities leading, for example, to the formation of a new cell wall in plants?
A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. What is the maximum height attained by the ball? Round the answer to the nearest t
A ballast bag is released from rest relative to the balloon when it is 3.65 m above the ground. How much time elapses before the ballast bag hits the ground?
From the knowledge about the distribution of electrons in the levels and from the atomic number (in parentheses), indicate the most likely charge on the ion when this atom forms an ion (Remember the 2
The average sun-earth distance is 1.496 × 1011 m. What is the apparent angle the diameter of the moon subtends, as seen from the earth?
A particle's position, captured by a strobe camera, is shown below. The positions have been labeled times t0 through t8. The time intervals are equally separated. What can describe the instantaneou