Answers
Related Questions
If the same pressure is exerted over a greater area will more of less force result?
more force
less force
the same amount of force
Answers
Answer:
less force
Explanation:
less force because they is increase in area and not enough energy to balance the whole equation
Answer:
the same
Explanation:
Sometimes, I have to take my cat, Gigi, in the car. She doesn’t like this, and tends to hide under the couch when she knows she has to go. This means I have to drag her out. Assuming she is using her claws to try and stop me, identify the forces acting on Gigi, and draw a free body diagram for the situation. Make sure you label each force and identify where it’s coming from.
Answers
Answer:
F - fr = ma , N - W = 0
Explanation:
In this exercise we are asked to identify the forces that act on the jack, for this we will use Newton's second law
On the x axis
We have two forces: the friction and the force of the girl who pulls the cat
F - fr = ma
On the y axis
There are two forces: normal and weight
N - W = 0
A diagram of these forces can be seen in the attachment
We know that the motion of the Moon around the Earth is due
to centripetal force.Then is the motion of the Earth along with moon around Sun due to centripetal force?
Answers
Answer:
YES
Explanation:
Gravity acts as the centripetal force and the velocity earth has keeps it from falling on the sun.
If it takes a planet 2.8 × 108 s to orbit a star with a mass of 6.2 × 1030 kg, what is the average distance between the planet and the star?
Answers
Answer:
9.36*10^11 m
Explanation
Orbital velocity v=√{(G*M)/R},
G = gravitational constant =6.67*10^-11 m³ kg⁻¹ s⁻²,
M = mass of the star
R =distance from the planet to the star.
v=ωR, with ω as the angular velocity and R the radius
ωR=√{(G*M)/R},
ω=2π/T,
T = orbital period of the planet
To get R we write the formula by making R the subject of the equation
(2π/T)*R=√{(G*M)/R}
{(2π/T)*R}²=[√{(G*M)/R}]²,
(4π²/T²)*R²=(G*M)/R,
(4π²/T²)*R³=G*M,
R³=(G*M*T²)/4π²,
R=∛{(G*M*T²)/4π²},
Substitute values
R=9.36*10^11 m
2. List two units for measuring mass and two units for measuring force.
Answers
Answer:
Gram (g) and Kilogram (kg) are used to measure mass.
Metre (m) and Kilogram (kg) are used to measure force.
The two units for measuring mass and two units for measuring force are kilogram and gram and Newton and pound respectively.
The kilogramme (kg), the standard unit of mass in the International System of Units (SI), is frequently used in both ordinary and scientific mass measurements.
Gramme (g): Because it is a more compact unit of mass, the gramme is frequently employed for smaller and more exact measurements. It is the same as one thousandth of a kilogramme.
Newton: The SI unit of force is the newton. A kilogramme of mass is defined as the force needed to accelerate it by one metre per second squared.
lb (pound): In non-SI systems, particularly in the US, the pound is a widely used unit of force. It is explained as the amount of force needed to move a one-pound mass one square foot per second.
Thus, the units are kilogram and gram for mass and Newton and pound for force.
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Which factors affect the gravitational force between objects? Check all that apply.
difference in speed of objects
direction of movement of objects
distance between objects
masses of the objects
volumes of the objects
Answers
Explanation:
distance between both objects and masses of the objects
Answer:
the answer is C and D
Explanation:
did it on edge
hope u have better day than me
hope this helps
Developing: Ohm’s Law states that Voltage (V) = Current (I) x Resistance (R). You can calculate the voltage. You can also solve for current or resistance if you mathematically rearrange the equation.
Use Ohm’s Law to calculate the missing variable. Be sure to show your work in the space provided. Round to the nearest tenths.
What is the resistance of a light if the voltage is 12 V and the current is 15 A (living room)?
What is the voltage of a circuit with 15 amps (bedroom) of current and a bedroom light with 12 ohms of resistance?
There is a 28 resistance in the dryer. It is plugged into a 240 V circuit. How much current passes through the dryer?
Answers
V = I · R
I = V / R
R = V / I
R = V / I
Resistance of the living room light = (12V) / (15A)
Resistance of the light = 0.8 ohm
V = I · R
Voltage of the bedroom circuit = (15 A) · (12 ohms)
Voltage of the bedroom circuit = 180 volts
I = V / R
Current through the dryer = (240V) / (28 ohms)
Current through the dryer = 8.57 A
A box moves through a displacement of 4 m
while a force of 12 Newton acts on it. What is
the work done by the force on the box?
Answers
Answer:
48
Explanation:
Force = Mass x Acceleration
What is the deceleration of a truck that takes 8.5 seconds to decrease its velocity from 35 m/s to 5 m/s?
Answers
a student does 100 j of work on the handle of a bicycle pump. the pump does 40 j of work pushing the air into the tire. what is the efficiency of the pump? show your work.
Answers
Answer:
40%
Explanation:
Student -> Pump = 100j
Pump -> Tire = 40j
Between the two, 60j of energy were lost.
Efficiency = 40/100 = 40%
The similarities and differences between the nucleus and the cloud of electrons?
Answers
Answer:
Similarities:
Both are based on developments in quantum mechanics, both involve a centrally located mass of protons and neutrons (nucleus)
Differences:
nucleus: Electrons distinct and follow a definite orbit around nucleus
Cloud: No definite orbit for electrons around nucleus, only probability distributions of where electron is likely to be.
HELP MEEEEEEE
Which choice is the smallest in mass? neutron nucleus proton electron
Answers
Answer:
electron
Explanation:
Which of the following is true regarding mixtures? a. One substance not combined with any other substances. b. Two or more substances physically mixed and can be separated. c. Two or more substances that are impossible to separate d. One substance that forms a compound alone.
Answers
Answer:
aerga
dggzsd
Explanation:
szsdrgzsedg
How could semantics be defined?
A.
as a set of rules that studies how words are broken down into morphemes
B.
as a set of rules that is concerned with understanding the meaning of words
C.
as a set of rules that dictates how vowels and consonants are pronounced
D.
as a set of rules that determines how words can be arranged into sentences
Answers
Answer:
its b >.<
Explanation:
just trust me laddies
Semantics can be defined : ( B ) As a set of rules that is concerned with understanding the meaning of words
What are semantics ?Semantics can be defined as the message conveyed by words in a sentence and context where the sentence is placed. It is a set of rules that is concerned with the understanding of words in sentences used in a context.
Hence we can conclude that Semantics can be defined : ( B ) As a set of rules that is concerned with understanding the meaning of words.
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The image below shows a model of the atom which subatomic particle does the arrow in the image below identify ?
Answers
Answer:it’s a
Explanation:
Answer:
A electrons
Explanation:
bcs
pls help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
the last answer is correct.
Explanation:
If one team pulls with more force than the middle flag or marker will move
Two types of energy can be either kinetic or potential energy. Identify those two types. For each type, explain why it can be either kinetic or potential. -Help fast i have my test soon!
Answers
Answer:
All forms of energy are either kinetic or potential. The energy associated with motion is called kinetic energy . The energy associated with position is called potential energy . Potential energy is not "stored energy".
Explanation:
Two forces, F1 and F2, are applied to a block on a frictionless, horizontal surface
as shown below. If the magnitude of the block's acceleration is 2.0 meters per
second2, what is the mass of the block? *
F, = 12 N
F2 =2N
Block
Frictionless surface
Answers
Answer:
F, = 12N. F, = 2 N. Block. 4) a 20.0-kg mass moving at 1.00 m/s.
Explanation:
The mass of the block on the frictionless horizontal surface is 5 kg.
The given parameters;
magnitude of the first force, F₁ = 12 Nmagnitude of the second force, F₂ = 2 Nacceleration of the block, a = 2 m/s²The mass of the block is determined by applying Newton's second law of motion;
F = ma
[tex]\Sigma F = ma\\\\F_1 - F_2 = ma\\\\12 - 2 = 2m\\\\10 = 2m\\\\m = 5 \ kg[/tex]
Thus, the mass of the block on the frictionless horizontal surface is 5 kg.
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how much momentum does a 5 kg object moving at 10 m/s have?
Answers
Answer:
p = 50 kg·m/s
Explanation:
attached is a good way to remember the formula!
9. A force is applied horizontally to a 20 kg box on a flat table, if the acceleration of the box is 2 m/s and the
coefficient of friction between the box and the table is 0.5, what was the magnitude (number) of the
applied force?
Answers
By Newton's second law,
n + (-w) = 0
p + (-f ) = (20 kg) (2 m/s²)
where n is the magnitude of the normal force, w is the weight of the box, p is the magnitude of the applied force (p for push or pull), and f is the magnitude of the friction force.
Calculate the weight of the box:
w = (20 kg) (9.80 m/s²) = 196 N
Then
n = w = 196 N
and
f = µ n = 0.5 (196 N) = 98 N
Now solve for p :
p - 98 N = 40 N
p = 138 N
Space-shuttle astronauts experience accelerations of about 35 m/s2 during takeoff. What force does a 75 kg astronaut experience during an acceleration of this magnitude?
Answers
Answer:
The answer is 2625 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 75 × 35
We have the final answer as
2625 NHope this helps you
solve the dimension of work in physics
Answers
Explanation:
W=F×s
=> W= [MLT^-2] [L]
W= [ML2T-2]
what is the world record top speed for a NASCAR race car?
Answers
Answer:
THey near 225 MPH at 'Dega
Explanation:
Which describes the role of oxygen in photosynthesis? *
It is a reactant, so it is released by the plant.
It is a product, so it is released by the plant.
It is a reactant, so it enters the plant.
It is a product, so it enters the plant.
Answers
Answer:
It is a product, so it is released by the plant.
Explanation:
[tex]6CO2 + 6H2O[/tex] → [tex]C6H12O6 + 6O2[/tex]
The plant uses water and carbon dioxide to create glucose and oxygen. Glucose is plant food, and Oxygen is given off as a byproduct.
Answer:
It is a product, so it is released by the plant.
Explanation:
What is the mass of an object that has an acceleration of 2.63 m/s^2 when an unbalanced force of 112 N is applied to it?
Answers
42.586 is your answer I need 20 characters
PLEASE HELP! A crate of mass 100 kg is being pushed in a straight line
across a horizontal floor at a constant speed of 4.0 m/s.
The coefficient of kinetic friction between the crate and
the floor is 0.3. Find the net force on the crate.
A. 0 N
B. 300 N
C. 400 N
D. 1200 N
Answers
Answer:
I think itd C
Explanation:
A 1242 kg car is moving at 22.5 m/s when it skids to a stop. The car's brakes, which caused the stop, applied a force of -7210 N in order to slow down the car. What was the acceleration of the car during it's slowing down to rest?
Answers
The work needed to stop the car is
W = ∆K = 0 - 1/2 (1242 kg) (22.5 m/s)² ≈ -314 kJ
A stopping force that does this amount of work, pointing in the opposite direction with magnitude 7210 N, would be exerted over a distance x such that
W = (-7210 N) x ==> x ≈ 43.6 m
Knowing Newton’s 2nd Law, how would you rearrange it to solve for acceleration.
Answers
Answer:
Force / mass
Explanation:
Divide mass on both sides to get acceleration by itself leaving you with mass below force hence divide force by mass
= (mv - mu) / t
= m (v-u) / t
= m a
( since a = (v-u)/t )
From F = m a then a= F/m
I need help!!!!
Please and thank u!
Answers
Answer:
False
True
False
True
False
True
Explanation:
) or
The best places to take a pulse are at the radial artery (
the carotid artery (
Answers
Answer:
on edge, it is all of them:
carotid
brachial
radial
femoral
popliteal
dorsalis pedis
Explanation: