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What is the stress in a cylindrical rod of 10.0cm diameter when loaded by 50.0N force at each end?

Stress = Force/Area and cross sectional area of a cyclinder = pi.r²
As diameter = 10.0cm=0.1m r=0.05m so area = 3.14*0.05²= 0.00785m²
As the force is 50.0N the...

Answered by Rowan H. • Physics tutor

3178 Views

Olly drove 56 km from A to B. He then drives 61 km from B to C. Olly’s average speed from A to B was 70 km/h. Olly took 75 minutes to drive from B to C. Work out Olly’s average speed for his total drive from A to C.

Key fact: Average speed = total distance/ total timeStep 1: find the time taken for Olly to travel from A to B. Using the formula: time taken = distance travelled / speed(56/70 = 0.8 hrs = 48 mins)Step 2:...

Answered by Sacha W. • Maths tutor

10890 Views

F = 5i + 3j. Find the magnitude and direction of F?

i is the unit vector (magnitude of 1) in the direction of the positive x-axis. j is the unit vector in the direction of the positive y-axis. The magnitude of F would be the length of ...

Answered by Rafiqul I. • Maths tutor

18747 Views

CaCO3 + 2HCl = ?

CaCO₃ is a carbonate and HCl is an acid, so the products will be a salt, water and Carbon Dioxide.Removing 2 Hydrogen atoms and an Oxygen atom for the H₂O, and one carbon atom and 2 ...

Answered by Toby G. • Science tutor

5078 Views