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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.
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?
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.
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
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
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?
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
The 12.0 cm dimension is vertical and the top of the block is 5.10 cm below the surface of the water. What is the reading of the spring scale?
In the next sequence, we see a person diving from a board and a leaf falling from a tree. It is stated that the speed of a falling body increases as it falls. If the statement concerning falling bod
Find the frictional force exerted on block A given that the mass of block A is 8.80 kg, the mass of block B is 2.48 kg, and the coefficient of static friction between block A and the surface on whi
The Sears Tower in Chicago is 110 stories (436 m) above street level, and the roof of the tower is 442 m above the street. Assume that a golf ball is thrown down from the roof of the Sears Tower.
A circular orbit about a proton where the radius is 0.51 X 10^-10m. Find the electrostatic force between the electron and proton and the electrons speed.
A car moving on a straight road starting from rest, travels 0.40 km in 9 s. What is the magnitude of the constant acceleration required to do this?
Uniform electric field and is accelerated to 1% of the speed of light after traveling 2.0 mm, what is the strength of the electric field and speed of the electron have after traveling 4 mm?
In a common lecture demonstration of wave pulses, a piece of rubber tubing is tied at one end to a fixed post and is passed over a pulley to a mass hanging at the other end. Suppose that the distanc
A skateboarder shoots off a ramp with a velocity of 6.9 m/s, directed at an angle of 54° above the horizontal. The end of the ramp is 1.1 m above the ground.
Assume that the air pressure is 0.85 atm and calculate your answer in Newtons per meter squared (N/m^2), otherwise known as pascals (pa).