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Q. A place kicker should kick a football from a point 35m (about 38.0 yd) from the goal, and the ball should clear the crossbar, which is 3.05 m high. When kicked, ball leaves the ground with a speed of 21.0 m/s at an angle of 55° to the horizontal.
Q. A 50 Omega resistor, a 0.1 H inductor, and a 10-mu F capacitor are connected in series to a 60-Hz source. The rms current in the circuit is 3 A. Find out the rms voltage across the resistor, the inductor and capacitor.
A woman rides a carnival Ferris wheel at radius 16.00 m, completing 4.10 turns about its horizontal axis every minute. What are (a) period of the motion, and the magnitude of her centripetal acceleration at (b) highest point and (c) the lowest poi..
The dummy in a crash test has a head of mass 3 kg. The dummy is strapped in firmly so that the body does not move. The car's forward speed changes from 24 m/s to zero in 0.23 s.
A 0.174kg softball is pitched horizontally at 26m/s. the ball moves in the opposite direction at 38m/s after it is hit by the bat.
Two students with vibrating 440Hz tuning forks walk away from each other with equal speeds. How fast must they walk so that they each hear the frequency of 433 from the other fork.
A collapsible plastic bag contains a glucose solution. If the average gauge pressure in the artery is 1.4 multiplied by 104Pa, what must be the minimum height, h, of the bag in order to infuse glucose into the artery? Suppose that the specific gra..
An Indy car with a speed of 120km/h goes around a level, circular track with a radius of 1km. What is centripetal acceleration of the car.
A stockroom worker pushes a box with a mass 11.2kg on a horizontal surface with a constant speed of 3.50m/s. coefficient of kinetic friction between the box and the surface is 0.20.
What is speed of the command module
Write the expression of the force fl j corresponding to the Uu potential energy term. Derive the expression of the distance r m i n at which Uu has its minimum value, as a function of the parameters a and/or E.
Find out the direction of the train motion
What is the total momentum of system after the collision.
A handball of mass 0.10 kg, traveling horizontally at 25 m/s, strikes a wall and rebounds at 19m/s. What is the change in the momentum of the ball.
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