Somebody correct me if i’m wrong but here’s my problem. i had an 89.9 in science. so i retook a test i made an f on and got an a. shouldn’t my grade be a 90% or more! ?

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?