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3) Principles of rectilinear proportion of light 9

Cdmdotnet asked Mar 28, 2023

by Cdmdotnet

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M The density of an object has the equation d = m/v If an object has a mass of 2.5 g and a volume of 1.3 cm3, what is its density? A. 3.8 g/cm3 B. 1.92 g/cm3 C. 0.52 g/cm3 D. 1.2 g/cm3

PeteTheGreek asked Mar 28, 2023

by PeteTheGreek

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Someone claps his or her hands is an example of… motion energy to sound energy sound energy to potential energy motion energy to radiant energy

ComicSansMS asked Mar 27, 2023

by ComicSansMS

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14 votes

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What is impulse and how does it relate to physics

Bluegene asked Mar 27, 2023

by Bluegene

8.0k points

1 answer

10 votes

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What type of simple machine can pinball machine flippers can be explained?

Diving asked Mar 25, 2023

by Diving

8.9k points

1 answer

19 votes

5.2k views

What makes a substance, such as aluminum, a good conductor?

Althor asked Mar 24, 2023

by Althor

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1 answer

14 votes

184k views

PLEASE HELP ME ON THIS ONE ANYONE Raphael and Josh are doing a wilderness training course. One of their assignments is to figure out a way to send a message asking for help using Morse code, which has

Anna Nevison asked Mar 24, 2023

by Anna Nevison

8.3k points

1 answer

5 votes

14.8k views

Bumper car A (281 kg) moving +2.82 m/s makes an elastic collision with bumper car B (209 kg) moving +1.72 m/s. What is the velocity of car B after the collision? HELP ASAP!!

Pramod Yadav asked Mar 23, 2023

by Pramod Yadav

7.7k points

1 answer

25 votes

18.8k views

A galaxy is composed of stars and A. Interstellar medium B. Plasmatic medium C. Nebular medium D. Gaseous medium

Plakhoy asked Mar 23, 2023

by Plakhoy

8.0k points

1 answer

0 votes

215k views

the number of turns in the primary winding of a certain transformer is 250 times more than that in the secondary winding calculate the input EMF in the primary winding in the EMF generated in the secondary

Xims asked Mar 21, 2023

by Xims

8.2k points

1 answer

21 votes

199k views

When all wavelengths of white light are reflected, we see what color? O Black O Red O White O Green

Sqwerty asked Mar 21, 2023

by Sqwerty

8.2k points

1 answer

21 votes

158k views

Part A) A pulley is massless and frictionless. The masses 3 kg, 3 kg, and 7 kg are suspended as in the figure. What is the tension T1 in the string between the two blocks on the left-hand side of the pulley?

Asma Zinneera Jabir asked Mar 21, 2023

by Asma Zinneera Jabir

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14 votes

219k views

1 The mass of one body is 50 kg and that of another body is 100 kg. If the distance between their centres is 20m, calculate the gravitational force between them. [G = 6.67 x 10-11 Nm2/kg2]

Jarel asked Mar 19, 2023

by Jarel

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2 votes

1.8k views

Planets A and B have the same mass, but planet A is half the size of planet B. Which statement correctly explains the weight you would experience on each planet? A. You would weigh the same on both planets

Bmuig asked Mar 18, 2023

by Bmuig

8.4k points

1 answer

20 votes

92.9k views

On Earth, a child kicks a ball, with a mass of 0.75kg, into the air reaching a maxheight of 4.3 meters. What is the potential energy at the highest point?

Chresse asked Mar 18, 2023

by Chresse

8.0k points

1 answer

24 votes

144k views

Which energy transformation explains why we can walk?

JMzance asked Mar 17, 2023

by JMzance

8.8k points

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19 votes

199k views

During development, the cells in these organisms become specialized. A. Multicellular B. Unicellular C. Both

Susan Yanders asked Mar 17, 2023

by Susan Yanders

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7 votes

80.5k views

If you walk 17 m forward then turn around and walk 8 back what was your distance

Xharze asked Mar 16, 2023

by Xharze

7.0k points

1 answer

2 votes

170k views

What is the value of coefficient of friction force

Rnbguy asked Mar 16, 2023

by Rnbguy

8.1k points

2 answers

22 votes

178k views

Why then are some imported

Pmcs asked Mar 15, 2023

by Pmcs

7.9k points

2 answers

15 votes

195k views

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