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A car traveling 80 km/h is 70 m behind a truck traveling 75 km/h. How long will it take the car to reach the truck? I have utilized a similar solution from the book (Physics by Giancoli, 6th edition) as a reference however doesn’t understand how they came up with the answer after finding the relative speed.
calculate the heat needed at 0 degrees celcius to make the following change of state kilocalories to melt 140 g of
A 237 kg cart runs into the rear end of a 120 kg cart that is stationary. What is the speed of the moving cart before the collision
Estimate the electric field needed to pull an electron out of an atom in a time comparable to that for the electron to go around the nucleus.
A plastic rod is rubbed against a wool shirt there by aquiring the charge of -0.80 mC. how many electrons are transfered from the wool shirt to the plastic rod.
A plane touches down for a landing with a ground speed of 120 mi/h (53.7 m/s). What is the plane's acceleration while stopping
The left plate of a parallel plate capacitor carries a positive charge Q, and the right plate carries a negative charge -Q. Calculate the energy stored in the capacitor
A 14.4 kg curling rock is released with a speed of 1.78 m/s and slides to a stop in 22 meters. What force of friction acts on the rock
An amusement park roller coaster starts out on a level track 50.0 m long and then goes down a 50.0-meter incline at an angle of 30° to the vertical. It then goes up a 20.0-meter ramp with an incline of 20° to the horizontal.
A projectile is launched with an initial speed of 50 m/s at an angle of 35° above the horizontal, What is the projectile's velocity at the highest point of its trajectory
When a hammer strikes a nail, it is compressed along its length. What average force was exerted on the nail by the hammer
a scout walks 5.5 km due east from camp then turns left and walks 2.75 km along the arc of a circle centered at the
A cube of ice is taken from the freezer at -7.7°C and placed in a99g aluminum calorimeter filled with297g of water at room temperature of 20°C. What was the mass of the ice cube
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