Physics

Physics, 07.07.2019 10:40, bobbye001

Which statement describe velocity and acceleration

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Physics, 17.07.2019 13:00, robert7248

Which statements describe velocity and acceleration? check all that apply. velocity equals displacement divided by time. all velocities are “instantaneous” and occur only at a point in time. velocity and acceleration are calculated using the same variables. acceleration equals change in velocity divided by time. acceleration is always constant; it cannot vary. average velocity can be found by using several velocities and their total time.

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Chemistry, 03.10.2019 03:30, Hi1234t6

Acar traveled at a constant velocity of 70 mph from noon to 2: 00 pm. at 3: 00 pm the velocity of the car was 80 mph; and finally at 4: 30 pm the velocity of the car was 40 mph. which statement accurately describes the acceleration of the car? a) the car had a positive acceleration the entire time. b) the car had a negative acceleration from noon to 2: 00 pm. c) the acceleration of the car from 3: 00 pm to 4: 30 pm was zero d) the car had a positive acceleration between 2: 00 pm and 3: 00 pm.

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Physics, 06.10.2019 08:00, loves2ballet

Assume a parcel of air in a straight tube moves with a constant acceleration of 4.00 m/s2 and has a velocity of 13.0 m/s at 10: 05: 00 a.m. on a certain date. (a) what is its velocity at 10: 05: 01 a.m.? (b) at 10: 05: 02 a.m.? (c) at 10: 05: 02.5 a.m.? (d) at 10: 05: 04 a.m.? (e) at 10: 04: 59 a.m.? (f) describe the shape of a graph of velocity versus time for this parcel of air. (g) argue for or against the statement, "knowing the single value of an object’s constant acceleration is like knowing a whole list of values for its velocity."

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Physics, 07.10.2019 20:00, mahmed78

Ajuggler throws a bowling pin straight up in the air. after the pin leaves his hand and while it is in the air, which statement is true? (a) the velocity of the pin is always in the same direction as its acceleration. (b) the velocity of the pin is never in the same direction as its acceleration. (c) the acceleration of the pin is zero. (d) the velocity of the pin is opposite its acceleration on the way up. (e) the velocity of the pin is in the same direction as its acceleration on the way up.

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