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In a particular crash test, an automobile of mass 1621 kilogram collides with a wall and bounces back off the wall. The x components of the initial and final speeds of the automobile are 19 m/s and 3.3 m/s, correspondingly. If the collision lasts for 0.12 second, obtain the magnitude of the impulse due to the collision.
Answer in units of kg•m/s.
A 24 ? resistor is frozen in a 0.50 kg block of ice with its two leads exposed. The resistor is then attached to a 9.0 V battery. how many hours does it take to completely melt the ice
In the Cavendish balance apparatus, suppose that m1=1.00 kg, m2= 20.0 kg, and the rod connecting each of the pairs of masses is 28.0cm long. find the magnitude of the net force on one of the small masses
If a soldier shoots an enemy with the intent of killing him, he wants the bullet to deliver maximum energy. On the other hand, if he wants to basically knock someone down (say for dispersing a riot) he wants the bullet to deliver maximum force.
How long must a 0.60-mm-diameter aluminumwire be to have a 0.50 A current when connected to the terminals ofa 1.5 V flashlight battery
What is the electric force
A helicopter propeller blade starts from rest and experiences aconstant angular acceleration of 18.0rad/s2. Find the speed of a point on the blade3.40 m from the axis of rotation when the blade has completed 13 revolutions.
A person takes about 20 breaths per minute with 0.5 litre of air in each breath. How much heat is removed per hour by the moisture in the exhaled breath if the incoming air is dry and the exhaled breath is fully saturated? Suppose that the water vapo..
A super nova releases 1.0×1045 J of energy.It is 1670 ly from earth. how much energy would reach your face
An electron is traveling through a region of space in which the electric field is along the +x direction and has a magnitude of 2313 N/C. What is the acceleration of the electron? magnitude m/s2 direction
The electric field everywhere on the surface of a charged sphere of radius 0.180 m has a magnitude of 500 N/C, What is the net charge on the sphere
The other end goes over a pulley 1.8m away and is attached to a 7 kg cement block. When the string is plucked like a guitar the third harmonic has a frequency of 522Hz.
Calculate the ratio of the intensity of an earth quake wave as it passes a point 27 kilometer from the source to the intensity as it passes a point 15 kilometer from the source
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