How much work was done
A worker pushes horizontally on a large crate with a force of 294 N, and the crate is moved 6.2 m. How much work was done?
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The sled is now pulled up the incline at constant speed by a child. The child weighs 431 N and pulls on the rope with a constant force of 100 N. The rope makes an angle of 30° with the incline and has negligible weight. What is the magnitude o
A proton moves with a velocity of v = (2i 4j + k) m/s in a region in which the magnetic field is B = (i + 2j 3k) T. (i, j and k are unit vectors in the x, y and z directions). What is the magnitude of the magnetic force this charge experiences?
What minimum volume is necessary for the lift off? assume that the balloon material and the load occupy negligible volumes.
A 3.0 kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 550 m/s, goes completely through the block, emerging at a speed of 190 m/s. What is the speed of the block immediately after the bullet exits?
A rectangular container measuring 10cmx20cmx25cm is filled with gas. What is the mass volume of water in kilograms?
How many jouels of energy are necessary to heat the steam from 100.0 degrees celsius to 114.0 degrees celsuis if the specific heat of the steam is 2.1 J/g degrees celsius?
Would you agree that it is valuable for a nation to have a citizenry that is reasonably well versed in science?
An organization's structure and culture are often seen as one and the same. Its structure is often given more serious consideration than its culture.
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As she tensed her muscles, the pitch of the tone would increase, and as she relaxed them, the pitch would decrease. What sort of training is this?
How do the notions of allopatric vs. sympatric speciation differ from each other. Which one is more accepted than the other, and why?
Anatomy and Physiology Phonation What is frequency or pitch measured as? Cricoid Cartilage (what is it and where is it found) Thyroid cartilage
Question: Which of the following are possible results of differential gene expression in a fruit fly?
a) What percentage of the capture fruit flies demonstrated heterozygosity for MDh? b) What percentage demonstrated type B? type A?
You have a drug that causes microtubules to immediately dissociate when applied to plant cells at one stage of mitosis and cytokinesis
Question: Which of the following is a synapomorphy of (or other evidence for) the clade Archosauria?