The area of a rectangle of length 100
cm and width 80 mm is
a. 8000 cm2
b. 80...
Physics, 25.11.2020 01:10, rileyeddins1010
The area of a rectangle of length 100
cm and width 80 mm is
a. 8000 cm2
b. 8000 mm2
c. 800 mm2
d. 800 cm2
15. Which of the following instruments
is best for measuring the volume of a
small, irregularly shaped stone?
a. Burette
b. A measuring tape
c. A measuring cylinder
d. A micrometer screw gauge
Item 16 refers to the following diagram of a
Vernier calliper
16. The diameter of the small sphere, S,
is:
a. 0.80 cm
b. 0.53 cm
c. 0.53 mm
d. 1.40 cm
Item 17 refers to the following diagram of a
micrometer screw gauge
17. The diameter of the thin rod, R, is:
a. 5.62 mm
b. 5.50 mm
c. 6.00 mm
d. 6.12 mm
18. Which of the following groups
contains TWO fundamental
quantities?
a. Force, momentum, mass
b. Voltage, current, resistance
c. Pressure, amount of substance,
current
d. Velocity, refractive index, time
19. The SI base unit for temperature is
a. °F
b. K
c. °C
d. T
20. The newton (N) is equivalent to:
a. kgm-1
s
2
b. kgms2
c. kgm-1
s
-2
d. kgms
Answers: 2
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There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.
Answers: 1
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Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s
Answers: 3
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