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A spaceship of mass 2.3×106 is cruising at a speed of 5.6×106 when the antimatter reactor fails, blowing the ship into three pieces. One section, having a mass of 4.7×105 , is blown straight backward with a speed of 2.0×106 . A second piece, with mass 8.3×105 , continues forward at 1.1×106 .
What is the speed of the third piece?
what is the direction of the third piece?
In a dentist's office an X-ray of a tooth is taken using X-rays that have a frequency of 7.60 × 1018 Hz. What is the wavelength in vacuum of these X-rays
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the stimulated emission wavelength
A uniform disk of radius 0.517 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
A car is driving directly north on the freeway at a speed of 117 km/h and a truck is leaving the freeway driving 76 km/h in a direction that is 40° west of north
A ball of mass 4.9 g with a speed of 22.5 m/s strikes a wall at an angle 29.0o and then rebounds with the same speed and angle. compute the average force exerted by the ball on the wall
the driver of a train moving at 20 m/s applies the brakes when it passes an amber signal. Find the train's acceleration and its speed at the next signal
A defibrillator consists of a 16.7-µF capacitor that is charged to 9.0 kV. how much charge passes through the body tissues
A 120-V rms voltage at 60.0 Hz is applied across an inductor, capacitor and a 100-%u03A9 resistor in series. what is the rms value of the current in this circuit
small 12.8g plastic ball is tied to a very light 26.9cm string that is attached to the vertical wall of a room. Find the direction of the electric field in the room
A billiard ball moving at 5 m/s strikes a stationary ball of the same mass. After the collision, find the struck ball's velocity (magnitude and direction) after the collision
The spacing between the plates of a 1.0x10^-6F capacitor is 0.05mm. what is the surface area of the plates
A 38.0 kg box initially at rest is pushed 4.00 m along a rough, horizontal floor with a constant applied horizontal force of 125 N. determine the final speed of the box
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