Answer:
<h3>The answer is 2122.73 g</h3>
Explanation:
The mass of a substance given it's molar mass and number of moles can be found by using the formula
mass = Molar mass × number of moles
From the question
molar mass = 283.03 g/mol
number of moles = 7.5 mol
So we have
mass = 283.03 × 7.5 = 2122.725
We have the final answer as
<h3>2122.73 g</h3>
Hope this helps you
I think it’s turning on a lamp
1) Centripetal acceleration: 
2) Centripetal force: 6942 N
Explanation:
1)
For an object moving in uniform circular motion (=circular motion with constant speed), the net acceleration is the centripetal acceleration, directed towards the centre of the trajectory and whose magnitude is given by

where
v is the speed
r is the radius of the circle
For the car in this problem, we have
v = 14 m/s is the speed
r = 50.0 m is the radius
Substituting, we find the acceleration:

2)
The net force acting upon the car is the centripetal force, also acting towards the centre of the circular path, and whose magnitude is given by

where
m is the mass
a is the centripetal acceleration
For the car in this problem, we have:
m = 1780 kg is the mass
is the acceleration
Substituting, we find the centripetal force:

Learn more about centripetal acceleration and force:
brainly.com/question/2562955
#LearnwithBrainly
The answer would probably be D
Answer:
The gradient here represents Angela's Velocity.
Explanation:
A distance-time graph has distance on its y-axis and time on its x-axis. Therefore, the gradient of the distance-time graph is given by the following formula:

Since the rate of change of distance is called the velocity.
<u>Therefore, the gradient here represents Angela's Velocity.</u>