A 51 g steel ball is released from rest and falls vertically onto a steel plate. The ball strikes the plate and is in contact with it for 0.5 ms. The ball rebounds elastically, and returns to its original height.
The time interval for a round trip is 3.00 s. In this situation, the average force exerted on the ball during contact with the plate is closest to: A) 3,000 N
B) 1,500 N
C) 2,490 N
D) 2,000 N
E) 3,500 N
Question 2
A 600-kg car is going around a banked curve with a radius of 110 m at a speed of 24.5 m/s. What is the appropriate banking angle so that the car stays on its path without the assistance of friction?
A) 60.9 B) 29.1 C) 33.8 D) 56.2 E) 13.5
Daniel Burnham’s Flatiron Building (1902) was one of the first to use steel girders to hold up the b
When a Tornado Strikes: Social Organization Following a Natural Disaster
The throttle plate stayed where it was moved, which indicates that there is a problem with the ...
Ocean water flows vertically and horizontally, influencing climate
Ball Illusion
How much heat is released when 125.0 g of steam at 100.0°C is cooled to ice at -15.0°C? The ...