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Two cars of the same mass collide at an intersection. Just before the collision one car is traveling east at 40.0 km/h and the other car is traveling south at 70.0 km/h. If the collision is completely inelastic, so the two cars move as one object after the collision, what is the speed of the cars immediately after the collision?
How fast is an ion of deuterium moving, assuming rms speed, if it is in a plasma with a temperature of 100 x 106 K? (kB = 1.38 x 10-23 J/K and mD = 2 x 1.66 x 10-27 kg)
Two point charges Q1 = +5.70 nC and Q2 = %u22122.40 nC are separated by 25.0 cm. What is the potential energy of the pair of charges
What was the bullet's flight time. A marble is thrown horizontally with a speed of 11 m/s from the top of a building. When it strikes the ground, the marble has a speed that makes an angle 38° with the horizontal. From what height above the ground..
a sphere with a 2.25 meter radius and a mass of 3.5 kilogram rolls down the inclined plane shown. at the bottom of the
A red laser, with a wavelength of 640 nm, shines on a diffraction grating with a grating spacing of 500 lines/mm. The resulting diffraction pattern is observed on a screen 1.00 meters away from the grating.
A stunt pilot with mass of 80 kg performs a vertical circular dive of radius 800 m. What forces are acting on the pilot
An open container holds ice of mass 0.530 kg at a temperature of -15.7 Celsius . The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 810J/minute .
Long parallel wires separated by 7.5 cm carry 3.3 Amperes each in opposite directions. What magnetic force per length acts on the wires
Does an apple tree exert a gravitational force on the earth and if so, how large of a force? Consider and explain this question when the apple is attached to the tree, and when it is falling.
You have to move your 900N couch before a delivery company drops off your new one. How much does your roommate weigh
A simple Pendulum has a mass of 2.00 kg. The mass has a speed of 3.00 m/s, What is the maximum height (from the lowest position) the pendulum will reach
In Oersted's experiment, suppose that the compass was 0.27 m from the current-carrying wire. If a magnetic field of 1/4 the Earth's magnetic field of 5*10-5 T was required to give a noticeable deflection of the compass needle, what current must the w..
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