teja212

A rough inclined plane, rises 1cm for every 5 cm along the inclined length. Calculate the effort required to drag a body weighing 100N up the plane, when the effort is applied parallel to the plane (µ=0.25)

Suppose A is n × n. Conclude that a basis for Rn can be built out of a basis for Ker(A) and Im(A)

Solving Problems Involving Quadratic Relations

Solve the following problems involving quadratic relations. You can choose to do so algebraically or graphically. If you choose to solve it graphically, you must attach a rough sketch of the graph from Desmos. If you choose to solve algebraically, SHOW ALL OF YOUR WORK.

1.Two quarterbacks have a contest to see who can throw a football further. The first quarterback’s throw can be modelled by the equation . The second quarterback’s throw can be modelled by the equation h=−0.021 d^2+0.8 d+7, where h represents the height of the football in feet and d represents the horizontal distance in yards
a) Who threw the football further?
b) Which throw reached a greater height?

Solving Problems Involving Quadratic Relations

Solve the following problems involving quadratic relations. You can choose to do so algebraically or graphically. If you choose to solve it graphically,
you must attach a rough sketch of the graph from Desmos. If you choose to solve algebraically, SHOW ALL OF YOUR WORK.

On the volleyball court, one type of set on the ball can be modelled by the equation h=−5t^2+40t +7, where h is the height of the ball and t is the time in seconds after the ball is set.
a) From what height is the ball set?
b) How high was the ball after 2 seconds?
c) What is the maximum height reached by the ball?

If K > 1 and Q > K then, the equilibrium favors theproducts or reactants. And the reaction will go toward reactants orproducts?

Solving Problems Involving Quadratic Relations

Solve the following problems involving quadratic relations. You can choose to do so algebraically or graphically. If you choose to solve it graphically, you must attach a rough sketch of the graph from Desmos. If you choose to solve algebraically, SHOW ALL OF YOUR WORK.

1. A model rocket is launched from a platform. The trajectory of the rocket can be modelled by the relation  , where h is the height of the model rocket in meters and t is the time in seconds.
a) What is the height of the platform?
b) What is the height of the model rocket after 4 seconds?
c) What is the maximum height reached by the rocket? How long does it take to reach this height?
d) Approximately how long is the rocket in the air? 

What is the Solubility of Ca3(PO4)2?

In the lab I get the following 4 numbers for the concentration of chloride in a sample:
0.1015, 0.0991, 0.1016, and 0.1017. What is the 95% confidence interval, and the relative
standard deviation for this data set.

I. (4 points) For each of the following passages, identify the barrier or impediment to critical thinking that is most likely being committed in it, and describe clearly in a sentence or two how the barrier or impediment is present in, or illustrated by the passage. (Some passages may contain no barrier.) 

(a) Several years ago, a Kentucky county clerk named Kim Davis, who was responsible for issuing marriage licenses, refused to sign marriage licenses for same-sex couples (despite the fact that a decision by the American Supreme Court gave them a legal right to marriage) on the grounds that such marriages were not consistent with her own Christian beliefs. 

How many molecules are there in 9.3 mol of NaCl?

Let P : V ------> V be a linear map such that P ²= P. Show that V = ker(P) + im(P) and ker(P) and im(P) ={0_V }. (For subspaces W1, W2 of V , the sum W1 + W2denotes the set of all elements of V of the form f + g with fbelongs to W₁ and g belongs to W₂. It is asubspace of V ----- you do not have to prove this.)