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The coefficient of static friction among the floor of a truck and a box resting on it is 0.30. The truck is traveling at 75.2 km/h. What is the least distance in which the truck can stop and ensure that the box does not slide?
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 23.0m/s as it leaves the hose nozzle. How high above the ground does the water strike the building
When the power is turned off on a turntable spinning at 71.0 rpm , you find that it takes 12.6 revolutions for it to stop while slowing down at a uniform rate. find the angular acceleration (in rad/s^2 ), of this turntable
In molecular hydrogen, H2, two hydrogen atoms are bonded covalently by sharing two electrons. Determine the electric force acting on each proton
Two masses are on a frictionless horizontal surface moving with two perpendicular directions (m1=m and m2=3m). After the collision the m1 mass stops. What is the velocity of mass m2 after the collision, if before the collision of the masses v1=5m/s a..
A vector has an x component of -23.0 units and a y component of 50.5 units. Find the magnitude and direction of the vector
When a person is given intravenous fluid, the bag containing the fluid is typically held about 0.9 m above the person's body. what is the pressure in the person's blood
An astronomer is making an observation of a new-discovered galactic object. Part of this observation is the study of the light emitted by the object. It is observed that this light includes a clear pattern of the emission spectrum of atomic hydrogen
A puck tied to a string moves in a circle on a frictionless horizontal surface. As the speed of the puck decreases, Evaluate what the tension in the string
A 0.058 kg aluminum bullet traveling at 481 m/s strikes an armor plate and comes to a stop. what is the bullet's temperature change in degrees Celsius
In fluorescence microscopy, an important tool in biology, a laser beam is absorbed by target molecules in a sample. what minimum energy must each pulse have
An object of mass 6.8kg is attached to a spring of force constant 1870 N/m. Calculate the maximum velocity the object has during its motion
point a is located 0.75 m away from a charge of -3.90 x 10-9 c. point b is located 0.35 m away from the charge. what is
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