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Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initial velocity of +5700 m/s, while rocket B has an initial velocity of +8100 m/s. After a timetboth rockets are again side by side, the displacement of each being zero. The acceleration of rocket A is -10 m/s2. What is the acceleration of rocket B?
Two positive charges, each of magnitude 4 x 10^-6C are located a distance of 8 cm from each other. What are the directions of the forces acting on each
Find the total work done on the car
A 80 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 35 kg child. find the magnitude of the child's velocity just before the collision
In a pole sliding game among friends, a 90kg man makes a total vertical drop of 7.0m while gripping the pole which exerts and upward force (call it Fp) on him. How long did the second person's slide take
A 1 kg wheel (hoop) rolls 5 rev. across a horizontal surface (without slipping)a distance of 3.2 m. if the wheel rolls for 3 sec. determine the angular velocity of the wheel
Two long parallel wires seperated by 50cm both carry currents of 4.0 A in the same vertically up direction. Find the magnetic field midway between the wires
A bug of mass 1.0 grams is caught up in the center of an oscillating spider web. show that this motion is generated by hooke's law force, f=-kx
A cylindrical glass of water (H2O) has a radius of 4.61 cm and a height of 12.5 cm. How many moles of water molecules are contained in the glass
A hoop of mass M and radius R is rotating about an axle at the edge of the hoop. what is the speed of the lowest point on the hoop
In an L-R-C series circuit, theresistance is 400 Ω, the inductanceis 0.380 henrys, and the capacitance is2.00×10−2 microfarads. What isthe resonance angular frequency ωo of thecircuit? The capacitor can withstand a peak voltageof 530 volts
suppose that the charge on the electron and proton did not have the same magnitude but instead differed by one part in
A cannon shoots a ball with an initial velocity of 152-m/s and a launch angle of 62°. The gravitational acceleration is 9.80 m/s2. Assuming no air resistance, how long would the cannonball stay in the air.
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