Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 230 m / s2 for 20 ms, then travels at constant speed for another 30 ms
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Chameleons catch insects with their tongues, which they can rapidly extend to great lengths
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a...
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 210 m/s2 for 20 ms , then travels at constant speed for another 30 ms . Part A During this total time of 50 ms , 1/20 of a second, how far does the tongue reach? Express your answer to two significant figures and include the appropriate units.
chameleons
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 280 for 20, then travels at constant speed for another 30.
You are driving to the grocery store at 25 m/s . You are 110 m from...
You are driving to the grocery store at 25 m/s . You are 110 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.70 s and that your car brakes with constant acceleration. -How far are you from the intersection when you begin to apply the brakes? -What acceleration will bring you to rest right at the intersection? -How long does it take you to stop? A rock is tossed straight up with...
A chameleon is aiming for an insect at a distance of 18 cm. The insect will...
A chameleon is aiming for an insect at a distance of 18 cm. The insect will sense the attack and move away 50 ms after it begins. In the first 50 ms, the chameleon’s tongue accelerates at 250 m/s2 for 20 ms, then travels at a constant speed for the remaining 30 ms. Does its tongue reach the 18 cm extension needed to catch the insect during this time?
29-31 26 27. The magnitude of the sum of two vectors whose lengths are 3 and...
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26 27. The magnitude of the sum of two vectors whose lengths are 3 and 4 is A. always equal to 7. 3 less than or equal to 7. c always greater than 7. D. equal to 5. B Which one of the following is not a vector? A displacement B. speed c velocity D. acceleration Acceleration can be expressed in A m/s. B. m/s. m/s? D. m/s. Adding a displacement vector to another displacement vector results in A...
26 27 28 The magnitude of the sum of two vectors whose lengths are 3 and...
26 27 28 The magnitude of the sum of two vectors whose lengths are 3 and 4 is A. always equal to 7. 3 less than or equal to 7. c always greater than 7. D. equal to 5. B Which one of the following is not a vector? A displacement B. speed c velocity D. acceleration Acceleration can be expressed in A m/s. B. m/s. cm/s D. m/s. Adding a displacement vector to another displacement vector results in A...
14. Two masses are connected by a string which passes over a pulley with negligible mass...
14. Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and one mass slides on a frictionless 30.0 degree incline. The vertically hanging mass is 6.00 kg and the mass on the incline is 4.00 kg. The magnitude of the acceleration of the 4.00 kg mass is 15. Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs...
1) a pitcher throws a baseball at 95 mi/hr. how long will it take to go...
1) a pitcher throws a baseball at 95 mi/hr. how long will it take to go 60 ft ? 2) the walking speed of a typical adult is closest to: a) 3 mph b) 0.3 mph c) 30 mph 3) the length of a runway at a typical airport is closest to: a) 10,000 miles b) 10,000 ft c) 10,000 inches 4) there is a runway 4 at LaGuardia airport. this number 4 is a reference to: a) the...
4. In a collision which of the following quantities is always conserved? A). Acceleration B). Energy...
4. In a collision which of the following quantities is always conserved? A). Acceleration B). Energy C). Kinetic Energy D). Momentum 5. If the applied force is perpendicular to the motion of the object then the Work done by the force is ___ A). Negative B). Positive C). Zero 6. A car, travelling at 40m/s slows to 10m/s in 5 seconds. What was the acceleration? A). -6 m/s? B). -4m/s2 C).-2 m/s2 D). -9.8m/s 7. A ball thrown straight up...
Please answer the following physic questions. Thank you! 1. A dog sees a flowerpot sail up...
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26 27. The magnitude of the sum of two vectors whose lengths are 3 and 4 is A. always equal to 7. 3 less than or equal to 7. c always greater than 7. D. equal to 5. B Which one of the following is not a vector? A displacement B. speed c velocity D. acceleration Acceleration can be expressed in A m/s. B. m/s. m/s? D. m/s. Adding a displacement vector to another displacement vector results in A...
26 27 28 The magnitude of the sum of two vectors whose lengths are 3 and 4 is A. always equal to 7. 3 less than or equal to 7. c always greater than 7. D. equal to 5. B Which one of the following is not a vector? A displacement B. speed c velocity D. acceleration Acceleration can be expressed in A m/s. B. m/s. cm/s D. m/s. Adding a displacement vector to another displacement vector results in A...
14. Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and one mass slides on a frictionless 30.0 degree incline. The vertically hanging mass is 6.00 kg and the mass on the incline is 4.00 kg. The magnitude of the acceleration of the 4.00 kg mass is 15. Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs...
4. In a collision which of the following quantities is always conserved? A). Acceleration B). Energy C). Kinetic Energy D). Momentum 5. If the applied force is perpendicular to the motion of the object then the Work done by the force is ___ A). Negative B). Positive C). Zero 6. A car, travelling at 40m/s slows to 10m/s in 5 seconds. What was the acceleration? A). -6 m/s? B). -4m/s2 C).-2 m/s2 D). -9.8m/s 7. A ball thrown straight up...
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