342 Answered Questions for the topic physics B

Physics B

11d

#### How to find the speed of a wave

#### Calculate the force created at each of the slave cylinders.

A force of 100 N is applied to the brake pedal, which acts on the cylinder called the master through a lever. A force of 500 N is exerted on the master cylinder. The pressure created in the master...
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#### why vehicles overturn when going too fast around a curve? Which wheel leaves the ground first?

why vehicles overturn when going too fast around a curve? Which wheel leaves the ground first?

#### A merry-go-round has a mass of 1600 kg and a radius of 8.00 m .

Part A How much net work is required to accelerate it from rest to a rotation rate of 1.00 revolution per 8.60 s ? Assume it is a solid cylinder.W= j

#### Please help (correct answer only)

Calculate the translational speed of a cylinder when it reaches the foot of an incline 7.35 m high. Assume it starts from rest and rolls without slipping. Express your answer with the appropriate...
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12/06/21

#### Members AD, DC and ABC are assumed to be solid rigid members; member ED is a cable. For this structure, determine the reaction at A, the tension on cable ED and the force in member DC.

Link for the structure: https://drive.google.com/file/d/1DxMIGWG2rRfqXvjci6aN2CHWfTkghlyP/view?usp=sharing

12/06/21

#### In Figure 1 and using Method of Sections, find the force in CD, BC and AC if the load acting at Joint C is decreased to 2,500 N.

link of figure 1: https://drive.google.com/file/d/1J0zSHxO9aXIMa7D9G18SUy9qt2oq2C9E/view?usp=sharing

#### A 3.8 kg lead ball is dropped into a 2.5 L insulated pail of water initially at 20.0∘C.

A 3.8 kgkg lead ball is dropped into a 2.5 LL insulated pail of water initially at 20.0∘C∘C.If the final temperature of the water-lead combination is 26.8 ∘C∘C, what was the initial temperature of...
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#### By what factor will the rms speed of gas molecules increase if the temperature is increased from 30 ∘C to 130 ∘C?

By what factor will the rms speed of gas molecules increase if the temperature is increased from 30 ∘C∘C to 130 ∘C∘C?

#### I got Part A,B and they are correct. I need help with part C. If you can help me with part C i would really appreciate it. A satellite of mass 5800 kg orbits the Earth and has a period of 5800 s .

Part A Determine the radius of its circular orbit. Express your answer using two significant figures. r = 7.0×10^6 mPart B Determine the magnitude of the Earth's gravitational force on the...
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#### The terminal velocity of a 3×10^−5 kg raindrop is about 9 m/s . Assume a drag force FD=−bv.

Determine the value of the constant b. Express your answer using one significant figure.

#### Physics problem for normal force URGENT

Lily, 50kg, Julie 52kg is driving in a car on their way to watch a terrible Manchester United match. The Normal force of the car 10 887.8N at this point. Next they give Robert, 60k, a ride to this...
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#### Does anyone know the answer because i got the wrong answer

A 18 g bullet strikes and becomes embedded in a 1.30 kg block of wood placed on a horizontal surface just in front of the gun. Part A If the coefficient of kinetic friction between the block and...
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#### Please help!!!!!!!!!!!! i got the wrong answer

A 130-kg tackler moving at 2.1 m/s meets head-on (and tackles) an 92-kg halfback moving at 5.3 m/s . Part A What will be their mutual speed immediately after the collision? Express your answer...
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#### Please helppppp

The terminal velocity of a 3×10^−5 kg raindrop is about 9 m/s . Assume a drag force FD=−bv.a) Determine the value of the constant b. Express your answer using one significant figure.b= _____...
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11/03/21

#### Does anyone know the answer????

The terminal velocity of a 3×10^−5 kg raindrop is about 9 m/s . Assume a drag force FD=−bv.a) Determine the value of the constant b. Express your answer using one significant figure.b= _____...
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#### Do you know where I am going through

Identify at least six pairs of action-reaction force pairs in the following.1st a boy pulling something2nd a bowling ball hitting pins.3rd flying hot air balloon

#### Activity 5. Pull each other

Materials: 2 rubber bonds and ruler/ tape measureProcedure:1. Tie the two rubber bond together.2. Each person should pull back the end of the rubber bond. Record the two readings using a ruler or...
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#### Fill in the blanks

Fill in the blanks. Write your answers on the provided answer sheet.An object travelling in a curved path is called_____.The motion is called_____.The Path it travels is called_____.When an object...
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#### Activity no. 1.3: Exploring Newton's Law of Motion

*Balloons of various shapesand sizes*Construction paper*String*Straws*Tape*Scissors*Kitchen clips*Normal paperclips, craftingsticks or other items that can be used as weights on the balloons*Anchor...
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#### Activity no. 1.2: Inertia Tricks

Materials: Coin, Paper, and small cup/glass Procedure:1. Place the paper on the small cup/glass.2. Place the coin on the paper. 3. Pull the paper quickly. Observe.Think about it:1. What happened to...
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#### What is this? Give the word from its meaning written below

1. The speed of an object at a certain instant of time.2. The speed of something in a given direction.3. The moving of something from its place or position.4. refers to how fast an object is...
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#### Find a,b,c and d

A physics book slides off a horizontal tabletop with a speed of 1.10 m/s. It strikes the floor in 0.480 s. Ignore air resistance. Find (a) the height of the tabletop above the floor;(b) the...
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#### Why it happened?

A viral video of a Physics professor in Silliman University is currently circulating because of his demonstration on circular motion. He securely tied the handle of a pail through a string. Then,...
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#### Fill in the blanks. Thanks Bless your lovelife, family and you

An object undergoing uniform circular motion has a acceleration pointed at the_____. although the speed is_____. The time it takes to complete one full circle is called_____.

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