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A wrench is thrown at a speed of79 mph at a wall that is 44 ft away. Upon colliding with the wall thewrench exerts 77lb of force due east on the wall. How much force does the wall exert on the wrench and in what direction?
a 1250 kg car is traveling around a banked curve at a speed of 23.5 m/s. the curve is banked 24 degrees to the horizontal. draw a free body diagram for the car, including all forces acting on it. clearly label and name each force
A block "A" of mass 3 kg on the table is connected to another block "B" of mass 2 kg hanging beneath by a string of negligible mass which passes through the hole. Calculate the unknown angular speed
How many 119W light bulbs can you use in a 134V circuit without tripping a 15 A circuit breaker? (The bulbs are connected in parallel that means that the potential difference across each light bulb is 134 V.)
When a softball player swings a bat, she accelerates it from rest to an angular velocity of 10 rad/s in a time of 0.27686 seconds. find the magnitude of the torque she applies to the end of the bat
An object, with mass m and speed v relative to an observer, explodes into two pieces, How much kinetic energy is added to the system during the explosion
A hoop of mass 1.9 kg and radius 55 cm has a string wrapped around its circumference and lies flat on a horizontal frictionless table. What is the angular velocity of the hoop about its center of mass after 2 s
Why is the thermal energy not shared instantaneously with the rest of the block to warm it as a whole?
A sealed container with a metal bottom contains m=0.020kg of ice at Ti=243K, How much ice remains in the container
When light is incident on a surface the critical angle is 40.0 degrees. The two materials are air and glass. What is the polarization angle for this light
An airplane is flying with a velocity of 98.0 at an angle of 24.0 above the horizontal. How far from the dog will the suitcase land
The external magnetic field in a loop decreases from 0.1 Tesla to zero in 2 seconds. The loop of wire has ten turns, a radius of 10 cm, with its axis 45 degrees relative to the magnetic field. How large is the induced voltage in the loop?
The equations of state for electromagnetic radiation in thermodynamic equilibrium with a cavity of volume V at temperature T are P=a T^4/3 and U=a T^4 V, Find the heat capacity for an isochoric (i.e., constant volume) process
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