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Q. A shotgun blast of 140 decibels occurs with humidity of 70% and temperature of 50 degrees. What is the decibel level at 100 yards away? At 200 yards? At 300?
Q. A spring is suspended from a ceiling. An 8.06 kilograms object is attacked to the spring which causes it to stretch out an additional 0.2 meters. Calculate the spring constant k.
An airplane is flying with a velocity of 97.0 at an angle of 25.0 above the horizontal. while the plane is a distance 103 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog ..
You are in a hot air balloon (yes, another balloon problem!) rising from the ground at a constant velocity of 2.70 m/s upward. To celebrate the takeoff, you open a bottle of champagne, expelling the cork with a horizontal velocity of 4.00 m/s rela..
A charged particle m=6g q=-80 c moves in a region of uniform field along a helical path (radius = 3.0 cm, pitch = 9.0 cm) as shown. Illustrate what is the angle among the velocity of the particle and the magnetic field?
Suppose that a person in Tilted Land throws a ball straight up at 20 m/s. Where does the ball hit the ground?
Find out the acceleration of the sled and child
The detective who investigated the scene of the crime found a second bullet, from the shot that missed Mr. Wesson, that had embedded itself into a chair.
A sled weighs 100N. It is held in place on a frictionless 20 degrees slope by a rope attached to a stake at the top, the rope is parallel to the slope. What is the normal force of slope acting on the sled.
One of the weapons considered for the "Star Wars" antimissile system is a laser that could destroy ballistic missiles. When a high-power laser is used in the Earth's atmosphere, the electric field can ionize the air, turning it into a conducting p..
What is its initial velocity as it leaves the ground. Two particles are fixed on an x axis.
A 41-kg box is thrown at a speed of 220 m/s & is brought to a halt in a collision that lasts for a time of 6.5 m/s. Find the magnitude of the average net force that acts on the box during the collision.
the fact that it moves very slowly by sky would probably cause it to be named after Yurtle, the god of turtles.
An underwater diver sees the sun 58 above horizontal. How high is the sun above horizon to a fisherman in a boat above the diver.
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