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At a playground, a toddler climbs on his bike starts to pedal away from his dad as fast as he can, at 12.6 km/h, towards a busy road that is 74.2 m away. At Δt=3.44 seconds later, his dad glances up from his phone and notices the escape, and starts running immediately after the toddler in the same direction. The dad is fast, but even with adrenaline, he can only run 10.82 m/s for short distances. At what distance from the road will the dad be able to catch up with the toddler? Express your answer in metres to three significant figures.
Based on dietary changes only, calculate her daily energy requirements if she wants to lose weight at a steady level of the 20-week period.
A ball is dropped from a height of 10 ft onto a level floor. If the coefficient of restitution is 0.9, how long will it take the ball to come to rest? Also, what is the total distance traveled by the ball.
A rectangular plate has a length of (19.7 ± 0.2) cm and a width of (8.6 ± 0.1) cm. Calculate the area of the plate, including its uncertainty
Tectonic plates are large segments of the earths crust that move slowly. suppose that one such plates has an average speed of v=2.1 cm/ year.
A dentist's mirror is placed 2.4 cm from a tooth. The enlarged image is located 6.4 cm behind the mirror. How is the image oriented relative to the object
A spaceship of mass 2.30×106kg is cruising at a speed of 4.30×106m/s when the antimatter reactor fails, blowing the ship into three pieces. What is the speed of the third piece
A balloon contains 2.5 L of oxygen gas at 1.0 atm, How much work is done in compressing the balloon at constant pressure
George, Romeo's not often heard about older brother, was also quite in love with Juliet. One night he tried to climb a 10 m long, find the coefficent of friction between the ladder and the grass
consider a single cell supporting 300 active users uniformly distributed within the cell and make simultaneous access
If a point charge of -30 mC experiences an electrostatic upward force of 27 mN at a certain location in the laboratory, find the magnitude and direction of electric field at that location
The magnetic field strength at the north pole of a 2.0-cm-diameter, 8-cm-long Alnico magnet is 0.10 T. how many turns of wire would you need
Determine the tangential speed of the block when the string is 0.20 m from the axis.
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