A 1250 kg car slams on the brakes and skids on the icy road. If the car has to apply just 562N to get moving again, then 250N to maintain a constant speed (assume air resistance is negligible), what are the coefficients of static friction and kinetic friction of the road. 

You attach a force scale to a toboggan resting in the snow:

-what is the min value of static friction and under what conditions would you observe that value on your force scale

-what happens when you start to pull on the force scale but it remains stationary

-what happens when your applied force exceeds the mas static force

-what happens to the number on the force scale in the moment the toboggan begins to move

-what 2 forces (equal in magnitude opposite in direction) is the scale measuring when you pull on the toboggan and it moves at a constant speed

H2O2(l)+Cu2+(aq)→Cu(s)+O2(g)+2H+(aq)

can someone help me with this question is really confusing and I don't understand, I need it by Tuesday, please... I'm desperate

Calculate the average speed and the average velocity for a ball that is moved according to the following instructions.

the ball (x,y)i=(10.0,-5.0)m

the ball along any curved path somewhere near (x,y)f=(-20.0,-10.0)m.

a.the average speed calculations

b.the average velocity calculations 

c.why the average speed always greater than the magnitude of the average velocity?

can you please show the procedure so I can understand how to do this equation. thank you 

A jet weighs 3260kg and can withstand a max acceleration of "plus 7.33 g's". what is the net force acting on the jet? 

would I put g as (-9.81) or just (9.81)

So my essential question is: how does an individuals perspective of, and response to, a crisis define him or her?

is it okay if I challenge it and write about how their response and perspective of the crisis actually doesn’t define them. Speaking on how it all depends on circumstances and other factors around a persons life therefore that response doesn’t define them. 

can someone help me with this question is really confusing and I don't understand, please.... I'm desperate

a ball along a straight path with the following velocity and time intervals:

-3.0s at 15.0m/s

-7.0s at 20.0m/s

-6.0s at -30.0m/s

-4.0s at 3.5m/s

a.total displacement?

b.displacement in the first 10s?

c.displcement in the last 10s?

d.displacement in the 5.0 - 15.0s time interval?

can you please show the procedure so I can understand how to do this equation. thank you

A little confused with this question: 

A swan is flying at a speed of 17.5m/s. A wind is blowing from the East at 12.5m/s. 

if the swan POINTED due South, what would be the magnitude and direction of the velocity relative to the ground. 

 if the swan WISHED to travel due south, what would be the velocity relative to the ground

I just want to know what the vector diagrams would look like for part a and b becasue im a little confused with that.

on the tv show last man standing