Physics, 23.07.2019 01:30 jakails3073
Plants take up phosphorus-containing compounds from the soil through their roots. scientists can add a small amount of radioactive phosphorus-32, which emits beta particles, to fertilizer and determine how fast phosphorus is taken up by the roots into the leaves. the results of this experiment can scientists. from the list below, identify which outcomes can be obtained by applying the results of this experiment. i. identifying hybrid strains of plants that mature faster. ii. farmers achieve better yields per acre. iii. getting more food or fiber at less expense. iv. identifying different fungi that are affecting the growth of plants
Answers: 1
Physics, 22.06.2019 05:20
Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?
Answers: 1
Physics, 22.06.2019 10:00
**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z
Answers: 1
Physics, 22.06.2019 11:20
If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s
Answers: 1
Physics, 23.06.2019 12:00
Unlike the idealized voltmeter, a real voltmeter has a resistance that is not infinitely large. a voltmeter with resistance rv is connected across the terminals of a battery of emf e and internal resistance r. find the potential difference vmeter measured by the voltmeter. what is vmeter?
Answers: 2
Plants take up phosphorus-containing compounds from the soil through their roots. scientists can add...
Physics, 05.05.2020 01:47
Mathematics, 05.05.2020 01:47
Mathematics, 05.05.2020 01:47
Biology, 05.05.2020 01:47
Social Studies, 05.05.2020 01:47
Mathematics, 05.05.2020 01:47
Mathematics, 05.05.2020 01:47
Health, 05.05.2020 01:47