Hi there!
Recall the equation for centripetal force;

m = mass (kg)
v = velocity (m/s)
r = radius (m)
We are not given the mass directly, we are given the object's weight.


Now, we can plug this value along with the given velocity and radius to solve:

Answer:
1.65 atm
Explanation:
Applying,
PV = nRT....................... Equation 1
Where P = Pressure, V = Volume, n = number of moles, R = malar gas constant, T = Temperature.
Make P the subject of the equation
P = nRT/V..................... Equation 2
From the question,
Given: n = 3.27 moles, V = 50.0 L, T = 35 °C = (273+35) = 308K
Constant: R = 0.082L.atm/K.mol
Substitute these values into equation 2
P = 3.27(0.082)(308)/(50)
P = 1.65 atm
This would be true!
When you subtract a positive number, it goes to the left of the number line. When you subtract a negative number, it goes to the left of the number line.
The thing that confuses most people is that the first number (when negative) continues to increase as a negative. It follows the same process, just different signs.
I hope this helps!
~cupcake
85 N - 40 N = 45 N
And depending on direction the greater force is being pulled towards
Because the earth revolves around the sun and the whole earth isn’t always facing the sun it changes that’s why we have night and day and summer and winter etc