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Middle schoolers are having a rocket competition; one of their rockets launches and ascends directly upward with a constant vertical acceleration of 19.5 m/s2 for 1.0 min. Its fuel is then all used and it continues as a free particle.
a. What is the maximum altitude reached?
b. What is the total time elapsed from takeoff until the rocket hits Earth.
An airplane is flying with a velocity of 93.0 m/s at an angle of 25.0 degrees above the horizontal, How far from the dog will the suitcase land in m
The core of a star collapses during a supernova, forming a neutron star. find the neutron star's angular velocity in revolutions per second, given the core's was originally 1.0 revolution per 30 days
A tennis player places a 40 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.052 kg tennis ball horizontally with a velocity of 30.6 m/s toward the north. What will be the final velocity of the machine.
In Figure 5-66, a force F of magnitude 7 N is applied to a FedEx box of mass m2 = 1.0 kg. The force is directed up a plane tilted by ? = 37°. The box is connected by a cord to a UPS box of mass 3.0 kg on the floor. The floor, plane, and pulley are fr..
An L-R-C series circuit with an inductance of 0.123 H , a resistance of 240 omega , and a capacitance of 7.29 micro F carries an rms current of 0.445. What is the rms voltage of the source
A 200 lbs guy wants to slide down a plastic slide 24 ft long and on a 30 degree angle, after that the slide goes horizontally for 6 feet. Taking friction into consideration, how fast would he be going down the slide.
Find out total vector displacement
A laser-beam is fired through the air into a solid block of diamond (don't ask where we got it, it's a secret). What is the angle of refraction within the diamond
A battery with an emf of 12.0 V shows a terminal voltage of 11.5V when operating in a circuit with two lightbulbs rated at 3.0 W, What is the battery's internal resistance
A double star is a system of two stars (say having massesm1 and m2) moving around the centre ofinertai of the system due to gravitation. Then find the ratio of sweeps of area of star of mass m1 to the star of massm2 ?
An electron is initially at rest just outside a large copper surface that has the charge density of 1.20 x10-6 C/m2. How far has the electron moved in 1.07 x10-9 s if the field is uniform over this region.
A Toyota Prius driving north at 56.0mph and a VW Passat driving south at 38.0 mph are on the same road heading toward each other, What is the velocity of Toyota Prius relative to the VW Passat
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