How does the slope of the graph in Procedure 1 compare with the average value of C d?
They are the same.
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A catapult fires an 800-kg rock with an initial velocity of 100 m/s at a 40° angle to the ground. The magnitude of the vertical impulse the catapult receives from the rock is
a. 5.1 × 10^4 N s. b. 6.1 × 10^4 N s. c. 8.0 × 10^4 N s. d. 5.0 × 10^5 N s. e. 6.0 × 10^5 N s.
A ball is thrown upward at a velocity of 19.6 m/s. What is its velocity after 3.00 s?
A. 9.80 m/s up B. zero C. 19.6 down D. 9.80 m/s down
Thin strips of iron and zinc are riveted together to form a bimetallic strip that bends when heated. The iron is on the inside of the bend because:
A. it has a higher coefficient of linear expansion B. it has a lower coefficient of linear expansion C. it has a higher specific heat D. it has a lower specific heat E. it conducts heat better
A loop of wire (resistance = 2.0 m?) is positioned as shown with respect to a long wire which carries a current. If d = 1.0 cm, D = 6.0 cm, and L = 1.5 m, what current is induced in the loop at an instant when the current in the wire is increasing at a rate of 100 A/s?
A. 34 mA B. 30 mA C. 27 mA D. 38 mA E. 0.50 mA