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Why is the sand on a dry beach not a fluid but when a wave comes in and out the sand does become a fluid and your feet sink when standing on it?

Gries asked Aug 10, 2023

by Gries

8.0k points

1 answer

1 vote

107k views

A bicycle wheel has a radius r = 0.26 m and rotates at a constant frequency of f = 51 rev/min. calculate the period of the wheel T in seconds?

Luca Sepe asked Aug 10, 2023

by Luca Sepe

7.0k points

1 answer

4 votes

129k views

Select ALL of the following that are vector quantities. 166 kg.m/s southwest 44 N upward 39 m/s east 13.7 grams 86 miles per hour 12 meters

Andrewdotn asked Aug 10, 2023

by Andrewdotn

7.4k points

1 answer

6 votes

214k views

What is the focal length of a lens? what is the focal point?.

Luckystars asked Aug 10, 2023

by Luckystars

7.3k points

1 answer

9 votes

58.6k views

Should the kinetic coefficient of friction and the static coefficient change with a different mass

KimNguyen asked Aug 10, 2023

by KimNguyen

7.1k points

1 answer

17 votes

135k views

Circle the 2 ranges of the spectrum that roughly correspond to both the frequency and wavelength of your musical note.So two circles: even though this is a light spectrum, there are frequencies and wavelengths

Sachintha Nayanajith asked Aug 10, 2023

by Sachintha Nayanajith

7.6k points

1 answer

5 votes

23.5k views

What was the final momentum? what was the initial velocity of the 0.2 kg cart? if the collision lasted 0.02 s, what force did each cart exert on the other?

OpiesDad asked Aug 10, 2023

by OpiesDad

6.9k points

1 answer

20 votes

212k views

I need to know what the answer is to this

Felypp Oliveira asked Aug 10, 2023

by Felypp Oliveira

6.6k points

1 answer

3 votes

74.6k views

What is the rate of acceleration if the object has a force of 857 N and a mass of 8000 kg

Johanna asked Aug 10, 2023

by Johanna

6.7k points

1 answer

13 votes

182k views

A man pushes the wall but fail to do so what is amount of work done by men

PlayfulGeek asked Aug 10, 2023

by PlayfulGeek

7.5k points

2 answers

8 votes

113k views

An electric motor uses 670 kJ of electrical energy to generate 595 kJ of mechanical kinetic energy. What is the efficiency of the motor? Full example, please... Thank you!

Abhshkdz asked Aug 10, 2023

by Abhshkdz

6.6k points

1 answer

12 votes

196k views

How does the nature of heat explain the occurrence of high temperature in a human body that has a fever?

Andrew Buss asked Aug 10, 2023

by Andrew Buss

6.9k points

1 answer

9 votes

115k views

How many moon diameters could you fit between Earth and the moon?

Ahmed Atoui asked Aug 10, 2023

by Ahmed Atoui

7.0k points

1 answer

2 votes

77.0k views

What is the function of physics education

Cactux asked Aug 10, 2023

by Cactux

7.5k points

1 answer

12 votes

162k views

The minimal angle required to achieve total internal reflection is referred to as:Select one:a.critical angleb.angle of refractionc.angle of reflectiond.angle of incidence

Hussein Nazzal asked Aug 10, 2023

by Hussein Nazzal

5.9k points

1 answer

3 votes

85.6k views

If the force of gravity acting on an object is 40N and the object has a mass of 2.8k, what is the acceleration due to gravity?

Victor Jalencas asked Aug 10, 2023

by Victor Jalencas

6.6k points

1 answer

5 votes

208k views

The area around the magnet where the force of the magnet attracts objects with metal is known as what?.

Alexander Vieth asked Aug 10, 2023

by Alexander Vieth

5.8k points

1 answer

2 votes

35.6k views

Why aren’t there solar and lunar eclipses every month? A. Because clouds in Earth’s atmosphere block the Moon’s shadow. B. Because of the gravitational effects of Jupiter on the Sun. C. Because the Moon’s

Lumberjacked asked Aug 10, 2023

by Lumberjacked

7.1k points

1 answer

4 votes

14.7k views

2. Determine the vector of angular momentum for a clockwise spinning object.Can someone help

Zvoase asked Aug 10, 2023

by Zvoase

6.4k points

1 answer

0 votes

197k views

Kinetic energy can be considered as the work a moving object can do, described by W = Fd. Use Newton's second law of motion (F = ma) and the motion equation vi? + v;2 = 2ad to show that KE = {mv2. (Assume

Jgreep asked Aug 10, 2023

by Jgreep

6.8k points

1 answer

25 votes

105k views

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