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- Question #f2899 + Example - Socratic
The magnitude of the force of gravity acting on an object depends on its mass, not its size For example, we would expect a pen to weigh more than a piece of tissue paper, even though the paper has a greater surface area, or size The weight of a stationary object is given by the force of gravity acting upon it, where W=F_g=mg We can see from this formula that the force of gravity acting on a
- How do I prepare 1 L of 2 mol L phenylmagnesium bromide?
Here are the theoretical calculations for 1 L of 2 mol L PhMgBr > PhBr + Mg → PhMgBr "2 mol PhMgBr" × "1 mol PhBr" "1 mol PhMgBr" × "157 01 g PhBr" "1 mol PhBr" × "1 mL PhBr" "1 491 g PhBr" = "200 mL PhBr" "2 mol PhMgBr" × "1 mol Mg" "1 mol PhMgBr" × "24 30 g Mg" "1 mol Mg" = "50 g Mg" 1 or 2 crystals of I₂ Enough dry THF to make 1 L Note: The I₂ acts as a catalyst for the reaction
- Question #10432 - Socratic
tau=1764 Nm Torque can be expressed by the equation: tau=vecF*r*sinphi Where vecF is the magnitude of the applied force, r is the distance from the point of application to the pivot, and phi is the angle between the force and radius vectors We are given m=90kg and r=2m The force is given by the force of gravity acting on the pirate, mg vecF=vecF_G=mg=(90kg)(9 8m s^2)=882N We assume an angle
- Site Map - Mole Ratios Questions and Videos - Socratic
#Mg# and #O_2# react in a 2 1 molar ratio 2 moles #M_g# = 1 mole #O_2# If a reaction used 32 5 g of #O_2#, how many g of #Mg# reacted? What amount, in mol, of carbon dioxide will be formed when three moles of methyl propane are combusted completely?
- A box with an initial speed of 8 m s is moving up a ramp . . . - Socratic
The box will move ~~2 7"m" up the ramp I used a combination of kinematics and Newton's second law We have the following information: |->v_i=8"m" "s" |->mu_k=4 5 |->theta=pi 6->30^o |->g=9 81"m" "s"^2 Diagram: where vecn is the normal force, vecf_k is the force of kinetic friction, and vecF_G is the force of gravity, decomposed into its parallel and perpendicular components I wil define
- A block weighing 14 kg is on a plane with an incline of pi . . . - Socratic
I get ~~9 0N We want to know if the forces currently acting on the block will cause it to accelerate (i e move down the ramp), and if so, how much force would need to be applied to the block to prevent this We can test both of these things simultaneously A force diagram of the situation: Where vecf_s is the force of static friction, vecn is the normal force, vecF_g is the force of gravity
- A box with an initial speed of 1 m s is moving up a ramp . . . - Socratic
Hence, we have: f_k+F_(g" ")=ma_" " n-F_(g" ")=0 =>n=F_(g" ") We know that the force of kinetic friction f_k is given by f_k=mu_kn, and the force of gravity by F_g=mg Since we are on an incline, we have to break the force of gravity up into its parallel and perpendicular components, as shown in the diagram
- Question #99eac - Socratic
"1 mole" Start by taking a look at the balanced chemical equation for this single replacement reaction "Mg"_text((s]) + 2"HCl"_text((aq]) -> "MgCl"_text(2(aq]) + "H"_text(2(g]) uarr Now, chemical equations make use of stoichiometric coefficients to express the mole ratios that exist between the reactants and the products when a reaction takes place In essence, the coefficients written before
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