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PHYSICS
HIGH SCHOOL
If the mass of the earth and all objects on it were suddenly doubled, but the size remained the same, the acceleration due to gravity at the surface would becomeA) 1/2 of what it now is.B) 2 times what it now is.C) 1/4 of what it now is.D) the same as it now is.E) 4 times what it now is.
MATHEMATICS
COLLEGE
what is the rule for solving proportions? A. The sum of the means is the product of the extremes. B. The product of the means is equal to the product of the extremes. C. The product of the extremes is twice the product of the means.
BIOLOGY
MIDDLE SCHOOL
What do viruses and cells have in common?
MATHEMATICS
MIDDLE SCHOOL
What types of statements can be used to support conclusions made in proving statements by deductive reasoning?
MATHEMATICS
MIDDLE SCHOOL
Simplify the following expression 48^1/2
HISTORY
MIDDLE SCHOOL
What is the relationship between the legislative branch and the mass media
MATHEMATICS
MIDDLE SCHOOL
A school club wants to buy shirts for each of its 38 members. Each shirt cost $23. About how much money will all the shirts cost.
MATHEMATICS
HIGH SCHOOL
What is 43 divided by 645? Show work. Also what is 21 divided by 299? Also show work.
CHEMISTRY
MIDDLE SCHOOL
If we want to produce pure aluminum (Al) using AlCl3 as a reactant, what other reactant should we use? A. Fe
B. Ni
C.Li
HEALTH
HIGH SCHOOL
I want some tips on how to be healthy
BIOLOGY
HIGH SCHOOL
After an RNA molecule is transcribed from a eukaryotic gene, portions called _____ are removed and the remaining _____ are spliced together to produce an mRNA molecule with a continuous coding sequence.a. operators ... promotersb. exons ... intronsc. introns ... exonsd. silencers ... enhancerse. promoters ... operators
ENGINEERING
COLLEGE
Water is boiled at 1 atm pressure in a coffee maker equipped with an immersion-type electric heating element. The coffee maker initially contains 1 kg of water. Once boiling started, it is observed that half of the water in the coffee maker evaporated in 12 min. If the heat loss from the coffee maker is negligible, what is the power rating of the heating element?
MATHEMATICS
MIDDLE SCHOOL
Explain how you could add
678 + 303 using mental math
MATHEMATICS
MIDDLE SCHOOL
Y= 2x -4
6x - 3y= 12
MATHEMATICS
MIDDLE SCHOOL
What is 12 x100 someone please help me
HISTORY
COLLEGE
Which of the following was NOT a basic principle of the English Bill of Rights? Nobles and church leaders had certain rights that the king could not take away
Guaranteed certain rights and liberties to the people
Restricted power of the king
Established England as a constitutional monarchy
MATHEMATICS
MIDDLE SCHOOL
What is the b in 8b=5.6
PHYSICS
HIGH SCHOOL
A 56.0kg ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.50 turns each second. The distance from one hand to the other is 1.5m. Biometric measurements indicate that each hand typically makes up about 1.25 % of body weight. Part A) horizontal force must her wrist exert on her hand F=150N
Express the force in part (a) as a multiple of the weight of her hand?
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