PHYSICS COLLEGE

An elevator is accelerating upward 3.5 m/s2 and has a mass of 300 kg. The force of gravity is 2,940 N. What is the tension force pulling the elevator up?

Answers

Answer 1
Answer:

The tension force pulling the elevator up is equal to 1,932 N.

First, to calculate the value of the tension responsible for the acceleration of the system, it is necessary to understand how the forces are distributed in the system, so that:

                                     

The resultant force is equal to the subtraction of the tension applied to the elevator and the weight of the elevator.

That said, we can apply the given values, having:

                                     

                                         

                                               

So, the tension force pulling the elevator up is equal to 1,932 N.

Learn more about tension force in: brainly.com/question/2008782

Answer 2
Answer:

Answer: 3,990 N

Explanation: Took taste now.


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HIGH SCHOOL

Yvonne has gained a reputation for her cheesecakes. She takes orders for 10 cheesecakes and spends 8.5 hours on one Saturday baking them all. She earns $120 from selling these cheesecakes. a. What is the average length of time to make one cheesecake? Give your answer in minutes. b. What does Yvonne charge for each cheesecake? c. How much money is Yvonnne earning per hour for her work?

Answers

A) 10÷8.5
b) 120÷10
c) answer A÷Answer B.

sure on first two, not so sure on C.
COLLEGE

When θ= 0 ̊, the assembly is held at rest, and the torsional spring is untwisted. if the assembly is released and falls downward, determine its angular velocity at the instant θ= 90 ̊. rod ab has a mass of 6 kg, and the disk c has a mass of 9 kg. note: the moment due to a torsional spring is, m = kθ; where k is the stiffness of the spring?

Answers

Rod is 450mm and disk has a radius of 75mm So there is a pin holding the assembly upwards which is when Θ=0 and at the pin there is a torsional spring with constant of k=20N m/rad. One end of the rod is attached to the pin and the other is attached to the disk.


MIDDLE SCHOOL

Is bleach heterogeneous

Answers

No, bleach is not heterogeneous. Bleach is actually homogeneous. 
Heterogeneous is if it the same throughout. 
Homogeneous is if it is different (has chunks and clumps of different materials)
HIGH SCHOOL

What is a barrier island? A. A ridge of sand that forms between the mainland and an island connecting the island to the mainland B. A long ridge of sediment that forms when a spit closes off a bay C. A narrow bank of sand that projects into the water from a bend in the coastline D. A long ridge of sediment deposited by the longshore current and separated from the mainland

Answers

Answer;

D. A long ridge of sediment deposited by the longshore current and separated from the mainland

A barrier island is a long ridge of sediment deposited by the longshore current and separated from the mainland.

Explanation;
  • A barrier island is a long, thin, sandy stretch of land that is oriented parallel to the mainland coast. The barrier island protects the coast from the full force of powerful storm waves.
  • The barrier islands are very important as they protect the mainland from storms and waves. Additionally, they protect tidal lagoons that serve as nurseries for a variety of fish and shellfish.
The answer is d a long ridge of sediment deposited by the longshore current and seperated from mainland
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