A T rex did 107,000 Joules of work to lift up its prey, a hadrosaur, that has 2721kg of mass. (The force of the hadrosaur is its mass x the acceleration of gravity (9.8m/s^2)).Therefore, how high up did the T rex raise the hadrosaur? (2 points)Group of answer choices3.0m2.7m4.0m2.5m

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error