Answer:
The answer is 11 mLExplanation:
To find the volume of the object we use the formula
volume of object = final volume of water - initial volume of water
From the question
final volume of water = 86 mL
initial volume of water = 75 mL
So we have
volume of object = 86 - 75
We have the final answer as
11 mLHope this helps you
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The picture is above
Answer:
D is correct.
The upward force on the ball must be the same at both locations:
F = M a = 0 = F(upwards) - F(downwards)
If the ball is not being accelerated the upward force must equal the downward force on the ball.
HELP ME PLEAS AND FASTT
What is the best location for a tidal power plant?
Question 5 options:
A beach.
The ocean.
An inlet or bay.
find two rational num between -3 and 2
Answer:
1 and -2
Explanation:
Basically rational numbers are numbers that can be expressed as a fraction and 1 can be expressed as 1/1 and -2 can be expressed as -2/1.
A sample of liquid nitrogen has a temperature of –320.8 °F. What is its temperature in degrees Celsius and in kelvins?
Answer:
Celsius: -36 degrees. Kelvin: 237.15 degrees.
Explanation:
Do the formula by multiplying the number by the formula it is selected to.
You want the maximum compression of the spring to be 0.31 mm . What must be the force constant of the spring
Thee force constant can be obtained using the relation, K = F/e
What is Hooke's law?According to Hooke's law, as long as the elastic limit is not exceeded, the extension is directly proportional to the force applied. In this case, the question is incomplete since the force applied is missing.
Now, from Hooke's law;
F = Ke
K = F/e
Hence, if we have the force applied, we can conveniently obtain the force constant of the spring.
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direction of the sum of the two vectors
Explanation:
V² = Vx² + Vy²
= [ 9.66 cos (0) ]² + [ 12 cos (135) ]²
= 165.31
V = root 165.31 = 12.85
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The direction of the sum of vectors A and B is approximately 22.9 degrees north of east.
To find the direction of the sum of vectors A and B, we can use trigonometry to determine the angle with respect to the positive x-axis (east direction). The given vectors A and B have magnitudes and directions as follows:
Vector A: Magnitude = 9.66 m, Direction = East
Vector B: Magnitude = 12.0 m, Direction = Northwest (which is 45 degrees north of west)
To find the resultant vector's direction, we need to add the angles of the two vectors. The angle between the positive x-axis and vector A is 0 degrees (east direction), and the angle between the positive x-axis and vector B is 45 degrees (northwest direction). Therefore, the angle between vector A and the resultant vector is 0 degrees, and the angle between vector B and the resultant vector is 45 degrees.
To find the angle of the resultant vector with respect to the positive x-axis (east direction), we can use the tangent function:
Tan(Angle)= Opposite/Adjacent = Magnitude of Vector A/Magnitude of Vector B
Taking the inverse tangent (arctan) of both sides:
Angle = arctan (9.66/12.0)≈22.9 degrees
So, the direction of the sum of vectors A and B is approximately 22.9 degrees north of east.
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According to Newton’s law inertia what will happen to the ballon when the force of gravity equals the upward force?
Answer:
It will stop moving.
1. A ball is thrown downward with an initial speed of 22 m/s on Earth. a. What is the acceleration of the ball? b. Calculate the displacement during the first 4 s. c. Calculate the time required to reach a speed of 60 m/s.
Answer:
Explanation:
The acceleration of the ball would be due to the downward force of gravity, 9.8m/s^2. In order to find the displacement given that interval of time, you have to use the corresponding kinematic formula:
[tex]d=v_it+at^2/2[/tex]
The initial velocity was given, the time was given, and the acceleration was given. Therefore:
[tex]d=(22m/s)(4s)+(9.8m/s^2)(4s)^2/2[/tex]
[tex]d=166.4m[/tex]
To find the required time given a desired final velocity, we can use:
[tex]v_f=v_i+at[/tex]
[tex]60m/s=22m/s+(9.8m/s^2)(t)[/tex]
[tex]38=9.8t[/tex]
[tex]t=3.9s[/tex]
__________ is the process of altering light so that the waves are all oscillating in the same plane.
Polarization
Reflection
Diffraction
Refraction
A 35.0- g bullet strikes a 5.0- kg stationary piece of lumber and embeds itself in the wood. The piece of lumber and the bullet fly off together at 8.6 m/s. What was the speed of the bullet before it struck the lumber? Define the bullet and the wood as a system.
please show work , help
Answer:
1237.17 m/s
Explanation:
Applying the law of conservation of momentum,
m₁v₁ + m₂v₂ = (m₁ + m₂)v0.035v₁ + 0 = 5.035 x 8.60.035v₁ = 43.301v₁ = 43.301/0.035v₁ = 1237.17 m/sFind the acceleration of a car with a mass of 1,200 kg and a force of 11,000 N.
Please help
Answer:
9.17 m/s^2
Explanation:
Formula for force is given by
F = m*a
where F is the force in newton
m is the mass of body in KG
and
a is the acceleration of body on m/s^2
_______________________________________________
Given
F = 11,000
mass = 1,200 Kg
we have to find value of acceleration
using
F = m*a
11,000 = 1200*a
=> a = 11,000 /1200 = 9.17
Thus, the acceleration of a car is 9.17 meter per second square
calculate the density if a body has a mass of 0.7kg and volume of 1l
Answer:
The answer is 0.7 kg/LExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question
mass = 0.7 kg
volume = 1 L
We have
[tex]density = \frac{0.7}{1} \\ [/tex]
We have the final answer as
0.7 kg/LHope this helps you
Before a diver jumps off of a diving board she has 7500J of Gravitational energy. What is the maximum amount of kinetic energy the diver will have just before she hits the water?
Answer:
i think it was 7500 j . beacause sometimes we can say that U=K after that thing is near the floor
The maximum amount of kinetic energy the diver will have just before she hits the water will be the same as the gravitational potential energy before take-off. Maximum kinetic energy is also 7500Joules
Gravitational energy is the energy possessed by an object by virtue of its position.
It is expressed according to the formula:
GPE = mgh
m is the mass of the object
g is the acceleration due to gravity
h is the height
If a diver has Gravitational energy of 7500Joules before the diver jumps off, the maximum amount of kinetic energy the diver will have just before she hits the water will be the same as the gravitational potential energy before take-off.
GPE = kinetic energy at the bottom = 7500Joules
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Ahab has been sent to the shops by his mother. The shops are 1200 m from his
home. If Ahab can run at an average speed of 6 m/s, how long will it take him
5
to reach the shops?
Answer:
it will take him 200secs to run to the shops
(btw 200 seconds is 3minutes and 20secs)
Explanation:
distance = speed x time
time = distance / speed
1200 ÷ 6 = 200
time = 200seconds
hope this helps
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x
What is the velocity of a wave with a length of 10 m and frequency of 5hz.
The velocity of the wave is defined by the product of wavelength and frequency. The velocity of a wave with a length of 10 m and frequency of 5hz will be 50 m/sec.
What is the velocity of the wave?The velocity of the wave is defined by the product of wavelength and frequency. It is obtained from the formula of the wavelength which is given by;
[tex]\rm \lambda=\frac{v}{f} \\\\ \rm v = \lambda \times f \\\\ \rm v = 10 \times 5 \\\\ \rm v = 50\ m/sec[/tex]
Hence the velocity of a wave with a length of 10 m and frequency of 5hz will be 50 m/sec.
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Please help me I’ll mark you as Brainly
PLSSSS
Answer:
D
Explanation:
Since Ball X accelerates at 8m/s2, its acceleration will be doubled. A faster acceleration means the least mass.
A labourer carries a load of 500N to a distance of 100m
The work done is??
Explanation:
Hey there!
Given;
Load = 500N
Distance= 100m
Acceleration due to gravity= 9.8m/s^2.
We know;
Work done = F * d
W = (500*9.8)*100
W= 490000J
Therefore, the work done by the carrier is 490000J.
Hope it helps...
The orbital motion of a deep water wave extends to a depth equal to.
Charges of 5c and −9c are at a distance of 1m from each other. which diagram represents the force between the two charges?
Diagram (c) represents the force between the two charges. Like charges repel, each other, and unlike charges repel each other.
What is electric force?The electric force between the two charges is directly propotional to the product of the charge and inversly propotional to the square of the distance between them.
The electric force is found as;
[tex]\rm F = \frac{K q_1q_2}{r^2}[/tex]
Like charges repel, each other, and unlike charges repel each other. Both the charge is of the opposite sign they attract each other.
Hence diagram (c) represents the force between the two charges.
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Giving brainlist plz help it for my civics class
What was the purpose of Thomas Paine's Common Sense?
A. To tell the king that America was now independent
B. To inform colonists about British injustices
C. To convince the colonists to separate from England
Answer:
it's either A or B
Explanation:
he argued two main points (1)independence from England (2)the creation of a democratic republic.
Please help in my home work.
change 120°F to celsius scale.
Answer:
48
Explanation:
I'm not sure if this is right I'm so sorry if its not
120 °F
to find:120 Fahrenheit as Celsius.
solution:[tex]c = (f - 32) \times \frac{5}{9} [/tex]
[tex]c = (120 - 32) \times \frac{5}{9} [/tex]
[tex]c = \frac{440}{9} [/tex]
[tex]c = 48.88889 \: degree \: celcius[/tex]
What happens to the momentum of an object when velocity is kept the same and the mass is increased?
hello people ~
During dry weather, while combing hair, sometimes we experience hair flying apart. The force responsible for this is
(a) force of gravity.
(b) electrostatic force.
(c) the force of friction.
(d) magnetic force.
Answer:
Electrostatic force
Explanation:
When we comb the hair
The comb gets positively charged.The hair got negatively chargedSo they get attracted and share electrons so that because of electrostatic forceA girl cycles for 3hrs at a speed of 40 km/h. What distance did she travel?
Answer:
120 km
Explanation:
Answer:
120 km
Explanation: 3x40= 120 :)
What place on the earth has the highest air pressure? What is it’s elevation and air pressure?
Answer:
Siberia
Explanation:
The highest sea-level pressure on Earth occurs in Siberia, where the Siberian High often attains a sea-level pressure above 1050 mbar with record highs close to 1085 mbar.
NOTE: mbar = Millibar, the unit of air pressure in the metric system, commonly used in meteorology, equal to 100 pascals, 1,000 dynes per square cm (about 0.0145 pounds per square inch), or slightly less than one-thousandth of a standard atmosphere.
1. Old Faithful is a geyser in Yellowstone National Park. This geyser erupts when hot water from
underground shoots up into the air through an opening in the ground. When this happens, the ground
surrounding the water increases in temperature. What happens to the molecules in the ground when
he temperature increases?
a
More heat molecules combine with the molecules in the ground.
b
The energy of the molecules in the ground decreases.
c
The energy of the molecules in the ground increases.
d
The cold energy of the molecules in the ground decreases.
Please help thanks!!
Answer:
c
Explanation:
i just did the test
The energy of the molecules in the ground increases in the given case when the temperature increases.
• The heat of the Earth is released in both conduction and convection in Yellowstone Park.
• Conduction takes place when the transferring of heat takes place from something hot to something cold.
• On the other hand, convection takes place when the transferring of heat takes place by the movement of hot gases or liquids like water, air, or magma to a cooler region.
• The same phenomenon takes place underneath the Yellowstone. The convection of the molten rock in the magma chamber underneath transfers heat via the caldera of Yellowstone.
• Near the surface of the ground, the convection of heat water results in the hot springs and geysers in the park.
Thus, when the temperature increases, the energy of the molecules in the ground also increases resulting in the formation of geysers. The correct answer is option c.
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Which of the following objects has the greatest kinetic energy?
à baseball flying through the air at 90 miles per hour
a baseball flying through the air at 45 miles per hour
O a baseball flying through the alr at 20 miles per hour
a baseball sitting on the ground
Answer:
A. a baseball flying through the air at 90 miles per hour
Explanation:
Kinetic Energy is the energy of mass in motion
Sofia needs to go to the grocery store. She leaves her house, walks 1 mi north
to the store, buys some bread and fruit, and walks back home. Which of the
following is true of Sofia's trip to the store and back?
O A. The total distance traveled is 1 mi.
O B. The total distance traveled is O mi.
C. The total displacement is O mi.
D. The total displacement is 1 mi north.
You go rock climing with a pack that weighs 70 N and you reach a height of 30m. How much work did you do to lift your pack?
Answer:
When u go on a rock climbing, earth exerts gravitational force on pack in downward direction (pointing towards the center of earth).
In order to climb, you need to work against work done by gravity on the pack. Hence work done by you = work done by gravity on pack
= Force x displacement = 70 x 30 = 2100 J.
So you need to do 2100 joules of work to lift your pack.
Power is the rate of work done. Therefore power = work done by you/ time in seconds
=2100/600 =3.5 watts
hence the answers is 3.5 watts.
Four model rockets are launched in a field. The mass of each rocket and the
net force acting on it when it launches are given in the table below.
Rocket
Mass (kg)
Force (N)
1
4. 25
120
2
2
3. 25
120
3
5. 50
120
4
4. 50
120
Which rocket has the highest acceleration?
A. Rocket 3
B. Rocket 1
C. Rocket 4
D. Rocket 2
In the given four models of rockets, the rocket with the highest acceleration is rocket 2.
Acceleration of the rocketsAcceleration is the rate of change of velocity with time. The acceleration of the rockets can also be determined from Newton's second law of motion with the applied force and mass of each rocket as shown below;
F = ma
where;
F is the applied forcem is the massa is the accelerationa = F/m
Rocket 1a = 120/4.25
a = 28.24 m/s²
Rocket 2a = 120/3.25
a = 36.92 m/s²
Rocket 3a = 120/5.5
a = 21.82 m/s²
Rocket 4a = 120/4.5
a = 26.7 m/s²
Thus, the rocket with the highest acceleration is rocket 2.
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