The age of a star cluster can be determined from the ____________________ of the cluster
Fill in the blank(s) with correct word
turnoff point
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Ten seconds after starting from rest, a car is moving at 40 m/s. What is the car's acceleration?
A) 0.25 m/s2 B) 2.8 m/s2 C) 4.0 m/s2 D) 10 m/s2 E) 40 m/s2
A 600-kg car traveling at 24.5 m/s is going around a curve having a radius of 120 m that is banked at an angle of 20°
(a) Is the curve properly banked for the car's speed? (b) What is the minimum coefficient of static friction required between the road and the car's tires so the car does not skid?
Which of these can feel the electric force?
A) neutrino B) Z particle C) photon D) All of the above. E) None of the above.
The direction of a magnetic field at a point can be determined by a compass
a. True b. False Indicate whether the statement is true or false