Answer:
15kg
Explanation:
mass = weight / gravitational field strength
mass = 150 / 9.8 = 15kg (nearest whole no)
The mass of the object on earth whose weight is 150 N will be 15.3 Kg
What is Mass?Mass is the amount of matter present inside a body. It is defined as the product of density and volume. It remains constant through out the universe. Mathematically -
M = ρV
where -
M is Mass
ρ is density
V is volume
Given is your weight on earth which is equivalent to 150 N.
We know that the weight of of an object is a force exerted by the earth towards its center. It can be written as -
W = mg
Weight of the object = [W] = 150 N
Acceleration due to gravity on earth = [g] = 9.8 m/s²
Substituting the values -
150 = m x 9.8
m = 150/9.8
m = 15.3 Kg
Therefore, the mass of the object on earth whose weight is 150 N will be 15.3 Kg.
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A person rides a bike with a constant velocity of 2 m/s. If his total displacement is 10 meters, for how long was he riding?
Answer:
5s
Explanation:
i just know
A person rides a bike with a constant velocity of 2 m/s. If his total displacement is 10 meters, he was riding for 5 sec.
What is velocity?When an item is moving, its velocity is the rate at which its direction is changing as seen from a certain point of view and as measured by a specific unit of time. Uniform motion an object is said to have uniform motion when object cover equal distance in equal interval of time within exact fixed direction. For a body in uniform motion, the magnitude of its velocity remains constant over time.
Given in question a person rides a bike with a constant velocity of 2 m/s. If his total displacement is 10 meters,
Velocity = Displacement / time
2 = 10/time
time = 5 sec
A person rides a bike with a constant velocity of 2 m/s. If his total displacement is 10 meters, he was riding for 5 sec.
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When a 3.0 kg mass is hung from a vertical massless spring, the spring is stretched 40 cm. What is the spring constant of the spring?
Answer:
0.74 N/cm
Explanation:
The following data were obtained from the question:
Mass (m) = 3 Kg
Extention (e) = 40 cm
Spring constant (K) =?
Next, we shall determine the force exerted on the spring.
This can be obtained as follow:
Mass (m) = 3 Kg
Acceleration due to gravity (g) = 9.8 m/s²
Force (F) =?
F = mg
F = 3 × 9.8
F = 29.4 N
Finally, we shall determine the spring constant of the spring. This can be obtained as follow:
Extention (e) = 40 cm
Force (F) = 29.4 N
Spring constant (K) =?
F = Ke
29.4 = K × 40
Divide both side by 40
K = 29.4 / 40
K = 0.74 N/cm
Therefore, the spring constant of the spring is 0.74 N/cm
Here is what you can say if the crewmates saw you get someone.
Well let me tell you guys. Everything is made of atoms. THe thing is atoms don't touch. And humans are made of atoms. So technically we never touch.SO to answer your question no I did not slice white in half in electrical.
Answer:
ahh yes you are so smart and I hope you get a good job when you are older
What is Isaac Newtons third law of motion? Explain?
Answer: His third law states that for every action, or force, in nature there is an equal and opposite reaction.
Explanation: Basically, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. Hope it helps!
Answer:
His third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A.
pls help me tbis is being timed
Answer:
it would have to be 1000 netons
A net force of 1 newton causes an object to accelerate at a rate of 5.0 meters per second per second. What is the mass of the object?
The mass of the object is equal to 0.2 Kg when it accelerates at 5.0 m/s².
What is acceleration?Acceleration of an object can be defined as the rate at which the object changes its velocity w.r.t. time. The acceleration can be expressed as the second derivative of position w.r.t. time and is a vector parameter.
The force exerted on an object is equal to the multiplication of the mass (m) and acceleration (a) according to Newton's 2nd law of motion.
F = ma
And, a = F/m
The mass and acceleration have an inverse relationship.
Given, the net force acting on an object, F = 1 N
The object is accelerating at a rate, a = 5.0 m/s²
The mass of the object can be determined by using the given information as follows:
m = F/a
m = 1/ 5.0
m = 0.2 Kg
Therefore, the mass of the object is equal to 0.2 Kg.
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which change to a circuit is most likely to increase it electrical power
A: increase it's current and increase it's voltage
B: decrease it's current and increase it's voltage
C: decrease it's current and decrease it's voltage
D: increase it's current and decrease it's voltage
Answer:
A................
Explanation:
Hope this helps you
A. increase it's current and increase it's voltage
Explanation:
Give me some pointers please, I need to finish this ASAP-
Plz help !!!!!! ................................
Answer:
I think the answer is B. Can I have brainlest if I am right, please?
Explanation:
Answer:
it is B because period =1/ frequency and B has lower period
After our sun leaves the main sequence it will most likely...
A.) become a supergiant and explode in a supernova explosion
B.) become a giant and eventually form a black hole
C.) become a supergiant and eventually form a dwarf star
D.) become a giant and eventually form a dwarf star
Answer:
c
Explanation:
An object has a net force. The net force points in the south west direciton. Knowing this, what can you can you conclude about the accleration, and velocity of the object
Answer:
1) The acceleration is in the SW direction.
2) It is not possible to make a conclusion regarding the direction of the velocity.
Explanation:
1)
According Newton's 2nd Law, the acceleration is directly proportional to the net force applied, and has the same direction than it.Since the net force points in the SW direction, so does the acceleration.2)
By definition, acceleration is the rate of change of the velocity with respect to time.Since acceleration is a vector, it can represent a change in the magnitude of the velocity (if it speeds up or if it is slows down), along the same direction (NW or SW in this case), and/or a change in the direction, as in the circular movement case, in which acceleration and speed are perpendicular each other. So, with the information that we have, we can't say in which direction the velocity points.Please solve C and F ASAP!!! I will give the first person to answer brainiest!!
(c) The potential energy at A is the same as the kinetic energy at B. So
m g h = 1/2 m v²
where m is the mass of the object at the end of the pendulum, g is the magnitude of the acceleration due to gravity, h is the height of the object at point A relative to B, and v is the object's maximum speed. So
(3.8 kg) (9.80 m/s²) h = 140 J
h = (140 J) / ((3.8 kg) (9.80 m/s²))
h ≈ 3.8 m
(f) You know the kinetic energy at B, so just solve for v :
140 J = 1/2 (3.8 kg) v²
v² = (280 J) / (3.8 kg)
v² ≈ 73.684 m²/s²
v ≈ 8.6 m/s
what is vector quantity
Answer:
The quantity which have both magnitude and direction is called vector quantity
A physical Quantity, which has magnitude, direction and units But must follow the traingle law of vector addition
Example:- Force, velocity acceleration displacement etc.
A body weighs less inside water
Answer:
Body weighs lesser in water because of the upward force (buoyant force) which acts on our body thereby reducing our actual weight. This is our apparent weight.
Explanation:
hope it helps
What is the relationship between chromosomes and a body's appearance? (A) Chromosomes make it possible for all bodies to exactly reproduce themselves. (B) Chromosomes contain genes that tell the body how to grow and work. (C) Genes make it possible for chromosomes to grow into many different parts of the body. (D) Genes contain chromosomes that tell the body how to grow and work.
Answer: The correct option is B.
Chromosomes contain genes that tell the body how to grow and work.
Explanation:
This is because chromosomes contain alot of human genes which are found in the nucleus and every humans have 23 pairs of chromosomes. The sets of genes determines some of the body features, characteristics or traits. The genes in the body form the genotype and the genotype is expressed physically which is now the phenotype i.e traits expressed physically in the body which is an indication of body appearance.
2
7.42 X 10
What is the scientific notation for this equation
Answer:
7 42 x 10^1
Explanation:
Because 10 x 1 =10
A force of 6.00 N acts in the positive direction on a 3.00 kg object, originally traveling at +15.0 m/s, for 10.0 s. (a) What is the object's change in momentum?
Answer:
60 kg m/s
Explanation:
Let [tex]a\;\; m/s^2[/tex] be the acceleration of the object.
As the acceleration of the object is constant, so
[tex]a=\frac {v-u}{t}\cdots(i)[/tex]
Given that applied force, F=6.00 N,
From Newton's second law, we have
[tex]F= m\times a[/tex],
[tex]\Rightarrow F=\frac {m(v-u)}{t}[/tex] [from equation (i)]
[tex]\Rightarrow Ft=m(v-u)[/tex]
[tex]\Rightarrow Ft=mv-mu[/tex]
[tex]\Rightarrow mv-mu=6\times 10[/tex] [given that time, t=10 s and F=6 N]
[tex]\Rightarrow mv-mu=60 kg \;m/s[/tex]
Here mv is the final momentum of the object and mu is the initial momentum of the object.
So, the change in the momentum of the object is mv-mu.
Hence, the change in the momentum of the object is 60 kg m/s.
The change in momentum of object is 60 kg-m/s.
Given data:
The magnitude of force is, F = 6.00 N.
The mass of object is, m = 3.00 kg.
The speed of object is, v = 15.0 m/s.
The time interval is, t = 10.0 s.
The change in momentum is mathematically equal to the difference between the final momentum and initial momentum of object. And it is obtained from the impulse-momentum concept as,
[tex]F=\dfrac{\Delta p}{t}\\\\\Delta p = F \times t[/tex]
Solving as,
[tex]\Delta p = 6.00 \times 10\\\\\Delta p =60.0 \;\rm kg.m/s[/tex]
Thus, we can say that the change in momentum of object is 60 kg-m/s.
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Can you please check if the answer I checked the right
Answer:
yeah that is correct that what I think
A wave vibrates up and down 22 cycles in 7 seconds with a wave speed of 57. Calculate the
wavelength. (Round to the 2nd number after the decimal)
Answer:
18.14m
Explanation:
Given parameters:
Frequency = [tex]\frac{22}{7}[/tex]cycles/s
Speed of wave = 57m/s
Unknown:
Wavelength = ?
Solution:
The speed of a wave is related to frequency and wavelength using the expression below;
V = f x λ
V is the speed of the wave
f is the frequency
λ is the wavelength
Insert the parameters and find λ;
57 = [tex]\frac{22}{7}[/tex] x λ
λ = 57 x [tex]\frac{7}{22}[/tex] = 18.14m
• Which is the following statements describes the interaction between magnetic poles?
Answer:
Please state the statements in the comment so I can help
Question 7 of 20
Which sample of water has the most thermal energy?
A. A 1.5 kg sample at 10°C
O B. A 0.5 kg sample at 1°C
O C. A 1 kg sample at 10°C
O D. A 1 kg sample at 4°C
Answer:
4
Explanation:
because she is thermal energy
Answer: A 1.5 kg sample at 10 degrees c
Explanation:
A PEX
Function of nucleus
Answer:
The nucleus has very important roles to play. As it contains genetic material, it coordinates cell activities like protein synthesis and cell division.
Explanation:
Black widow (m=57000 g) shovels snow, holding the shovel at a 40 degree angle above the ground. If she uses a constant force of 180. N and pushes the snow 5.00 m. How much work does she do on the snow?
Answer:
She does a work of 689.44 J in the snow.
Explanation:
A force is said to do work when it alters the state of motion of a body. The work of the force on that body will be equivalent to the energy needed to move it.
In other words, Work is a form of energy transmission between bodies. In order to carry out work, a force must be exerted on a body and it must move.
The work is equal to the product of the force times the distance and the cosine of the angle that exists between the direction of the force and the direction that the moving point or object travels:
W= F*d* cos Ф
Work W is measured in joules (J), force is measured in newtons (N), and displacement in meters (m).
In this case:
F= 180 Nd=5 mФ= 40 degreesReplacing:
W= 180 N*5 m* cos 40
Solving:
W= 689.44 J
She does a work of 689.44 J in the snow.
The power in an electrical circuit is given by the equation P= RR, where /is
the current flowing through the circuit and Ris the resistance of the circuit.
What is the power in a circuit that has a current of 0.02 amps and a
resistance of 30 ohms?
Equation of power in a electrical circuit is given as:
[tex] \bf P = I^2R[/tex]
I → Current flowing through the circuit.
R → Resistance of the circuit
We need to calculate power when;
Current (I) = 0.02 A
Resistance (R) = 30 Ω
By substituting values in the equation, we get:
[tex] \rm \longrightarrow P = (0.02)^2 \times 30 \\ \\ \rm \longrightarrow P = 0.0004 \times 30 \\ \\ \rm \longrightarrow P = 0.012 \: W[/tex]
[tex] \therefore [/tex] Power in the circuit = 0.012 W
Which of the following is a muscle on the front side of the upper body?
Answer:
What are the following?
Explanation:
A circus performer swings down from a platform on a rope tied to the top of a tent in a pendulum-like swing. The performer's feet tough the ground 9 meters below where the rope is tied. how fast is the performer moving at the bottom of the arc?
First solve for time to fall using: = √2 ∶ 2(9) = 1.35. Then solve for velocity √9.8
2
2
using: = ∶ 9.8 2 ∗ 1.35 =13.23 m/s The performer’s velocity is 13.2 m/s
at the bottom of the swing.
Explanation:
particle moving with constant acceleration changes its velocity from 10 m/s to
20m/s while covering a distance of 130m. Find the acceleration of the particle.
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Milk of magnesia is a slippery, bitter-tasting white substance that is commonly used as a laxative. If the pH of milk of magnesia is between 10 and 11, it can best be described as a
Answer:
a moderate base
Explanation:
Milk of magnesia is popularly known as magnesium hydroxide. Magnesium hydroxide Mg(OH)₂ is used as an anti-acid in toothpaste and medically as a mild laxative.
Its pH values range between 10- 11 on the pH scale.
A solution with pH value of 7 is neutral(i.e. neither acidic nor basic.
A pH value which is less than 7 is acidic while a pH value greater than 7 is basic.
For a pH value between 12 -14 on the pH scale is said to be a strong base.
Since Milk of magnesia Mg(OH)₂ pH values ranges between 10- 11 on the pH scale, it is known to be moderately basic.
Which of the following games below involves different manipulative skills like throwing and rolling and some motor skills?
Group of answer choices
target games
invasion games
striking and fielding games
physical activity
Answer:
striking and fielding
Explanation:
striking and fielding
Compare and contrast what happens to an object's motion when balanced or
unbalanced forces act on that object.
Answer: The motions shifts.
