PHYSICS HIGH SCHOOL

Why is net force a vector sum A.All forces have direction and magnitude B.Forces can only be attractive C.All forces are contact forces D.There are four fundamental forces

Answers

Answer 1

Answer:

Answer:

Explanation:

Forces are vector quantities because they have both magnitude and direction.

Answer 2

Answer:

A is the right answer i just got it right for A P E X

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A waterwheel is an example of ____.

FIRST ANSWER IS BRAINIEST TAKE YOUR TIME I NEED RIGHT ANSWERS FIRST ANSWER IS BRAINIEST ANSWER TAKE YOUR TIME NEED RIGHT ANSWER FIRST ANSWER IS BRAINIEST TAKE YOUR TIME I NEED RIGHT ANSWERS FIRST ANSWER IS BRAINIEST ANSWER TAKE YOUR TIME NEED RIGHT ANSWERDrag the item from the item bank to its corresponding match.

A.Commensalism
B.Consumer
C.Decomposer
D.Host
E.Mutualism
F.Parasite
G.Predator
H.Prey
I.Producer
J.Symbiosis

1.This is an organism which feeds on, but usually does not kill, a larger organism.

2.This is an animal that lives by preying on other animals.

3.This is an interdependent relationship between two different species.

4.is an organism that relies on other organisms for its food and energy supply; also
called a heterotroph.

5.This is an organism that breaks down and gains nutrients from dead organisms.

6.This is an organism that supplies matter and energy, also known as an autotroph.

7.This is the interaction of two organisms where one is helped and the other is neither helped nor harmed.

8.This is the interaction of two organisms where both benefit.

9.An organism that harbors a parasite, mutual partner, or commensal partner, typically providing nourishment and shelter.

10.An animal that is killed and eaten by another animal.

Answers

Answer:

1-F; 2-G; 3-J; 4-B; 5-C; 6-I; 7-A; 8-E; 9-D; 10-H.

Explanation:

1.This is an organism which feeds on, but usually does not kill, a larger organism. F. Parasite

2.This is an animal that lives by preying on other animals.G. Predator

3.This is an interdependent relationship between two different species.J. Symbiosis

4. is an organism that relies on other organisms for its food and energy supply; also called a heterotroph. B. Consumer

5.This is an organism that breaks down and gains nutrients from dead organisms. C. Decomposer

6.This is an organism that supplies matter and energy, also known as an autotroph. I. Producer

7.This is the interaction of two organisms where one is helped and the other is neither helped nor harmed. A. Commensalism

8.This is the interaction of two organisms where both benefit. E. Mutualism

9. An organism that harbors a parasite, mutual partner, or commensal partner, typically providing nourishment and shelter.D. Host

10.An animal that is killed and eaten by another animal. H. Prey

A = 7
B = 4
C = 5
D = 9
E = 8
F = 1
G = 2
H = 10
I = 6
J = 3

What is water made up of?

Answers

Pure water is made up of a huge number of water molecules.

Each water molecule is made of two Hydrogen atoms and one
Oxygen atom, locked together by the electrons they share.

2 Hydrogen and 1 Oxygen otherwise known as H2O, if that's what your looking for

The combination of two or more atoms, from the same or different elements, creates a(n)_____

Answers

The combination of two or more atoms, from the same or different elements, creates a(n)_____

A Compound.

A parallel-plate air capacitor is made from two plates 0.210 m square, spaced 0.815 cm apart. it is connected to a 120 v battery. if the plates are pulled apart to a separation of 1.63 cm , suppose the battery remains connected while the plates are pulled apart. part a what is the capacitance?

Answers

Answer:

at the beginning: $2.3\cdot 10^(-10) F$

when the plates are pulled apart: $1.1\cdot 10^(-10) F$

Explanation:

The capacitance of a parallel-plate capacitor is given by

$C=k \epsilon_0 (A)/(d)$

where

k is the relative permittivity of the medium (for air, k=1, so we can omit it)

$\epsilon_0 = 8.85\cdot 10^(-12) F/m$ is the permittivity of free space

A is the area of the plates of the capacitor

d is the separation between the plates

In this problem, we have:

$A=0.210 m^2$ is the area of the plates

$d=0.815 cm=8.15\cdot 10^(-3) m$ is the separation between the plates at the beginning

Substituting into the formula, we find

$C=(1)(8.85\cdot 10^(-12)F/m)(0.210 m^2)/(8.15\cdot 10^(-3) m)=2.3\cdot 10^(-10) F$

Later, the plates are pulled apart to $d=1.63 cm=0.0163 m$ , so the capacitance becomes

$C=(1)(8.85\cdot 10^(-12)F/m)(0.210 m^2)/(0.0163 m)=1.1\cdot 10^(-10) F$

A ball is thrown horizontally from the top ofa building 140 m high. The ball strikes the
ground 54 m horizontally from the point of
release.
What is the speed of the ball just before it
strikes the ground?
Answer in units of m/s.

Answers

Answer:

v = d / t = 54 / 5.34 = 10.11 m/s (rounded to two decimal places)

Explanation:

According to Charles's law whenever the temperature of a gas at constant pressure decreases the volume increases

Answers

I believe the answer is false

The answer is false.

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