Answer:
The answer is 3x² + 10x
Explanation:
d/dx (x³ + 5x² - 2)
= d/dx (x³) + 5 d/dx (x²) - d/dx (2)
= 3x² + 5(2x) - 0
= 3x² + 10x
Thus, The answer is 3x² + 10x
-TheUnknownScientist
Answer:
3x² + 10 x
Explanation:
hope it's helpful
motorcycle starting from rest cover 200 metre distance in 6 second calculate final velocity and acceleration of the motorcycle
After an impact involving a high-speed car, the bumper leaves the front of the car with a speed of 96 m/s. After 5 seconds, how far has the bumper landed?
How is heavy water different from normal water? A hydrogen atom in heavy water has an extra neutron. A hydrogen atom in heavy water has an extra proton. An oxygen atom in heavy water has an extra proton. An oxygen atom in heavy water has an extra neutron.
Answer:
शब्द प्रयोग गर्छौं ।
The difference, though, lies in the hydrogen atoms. In heavy water, each hydrogen atom is indeed heavier, with a neutron as well as a proton in its nucleus. This isotope of hydrogen is called deuterium, and heavy water's more scientific name is deuterium oxide.
A rock is dropped from a height of 3,245 m. If we ignore air resistance, how fast will it be travelling after it falls for 3.4 s?
Answer:
954.4m/s
Explanation:
For a free falling object,it has constant acceleration and a changing velocity.
By using the velocity-time formula, the velocity can be obtained.
The height the rock travelled is the distance.
From,
Velocity (v) = Distance (d) / Time(t)
v = 3245m/3.4s
v = 954.4m/s
That js the answer I got. Hope it's right.
convert 22000mg to cg
Your answer is.. 22000 mg = 2200 cg
Because:
1 mg = 0.1 cg
I hope this helps!
PLEASE ANSWER!!!!!!!!! WILL GIVE BRAINLIEST!!!
Physical Science is the study of ____.
energy
matter
how matter and energy interact
all answers are true
Physics is the study of matter, energy and the interactions between them. So, all the answers are true.
What is meant by energy ?Energy is defined as the measurement of ability to do work.
Here,
Energy is the measurement of ability do work, which is a physical property of matter. Energy is of various types such as kinetic energy, potential energy, thermal energy, electrical energy, heat energy, etc. Energy and its applications are associated with many laws. The study of energy and the laws associated with them is one of the main branch of physics.
Matter is defined as the substance that has a specific mass and occupies physical space. Atomic particles such as electrons, protons and others are material particles. Thus the study of these matter and material particles is an important branch of physics.
Matter and energy in nature interacts in many ways. Material particles moving moving with particular kinetic energy is an example of matter-energy interactions. These interactions and their studies comes under physics.
Hence,
Physics is the study of matter, energy and the interactions between them. So, all the answers are true.
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mention the cause of wasting
Answer:
Causes. Wasting can be caused by an extremely low energy intake (e.g., caused by famine), nutrient losses due to infection, or a combination of low intake and high loss. Infections and conditions associated with wasting include tuberculosis, chronic diarrhea, AIDS, and superior mesenteric artery syndrome
What is the volume of a storage tank which will hold 3200kg of petrol?
Answer:
The volume of 3200 kg of petrol is 4 m^3.
who is isac newten.gggggggg
Answer:
mathematician, physicist, astronomer, theologian and author.
Explanation:
Greatest mathematician and the most influential scientist of all time.
A rifle is aimed horizontally at a target 50m away. the bullet hits the target 2.0cm below the aim point
a. the time
b. the speed
The time of motion of the bullet is 0.064s.
The horizontal speed of the bullet is 781.25 m/s.
Time of motion of the bullet
The time of motion of the bullet is the time taken for the bullet traveled from its initial position to the final position and it is calculated as follows;
h = vt + ¹/₂gt²
where;
v is the initial vertical speed = 0t is the time of motionh is the height of fall = 2 cm = 0.02 m0.02 = 0 + ¹/₂(9.8)t²
0.02 = 4.9t²
t² = 0.02/4.9
t² = 0.0041
t = √0.0041
t = 0.064 s
Horizontal speed of the bulletThe horizontal speed of the bullet is calculated using the following formula shown below;
X = Vₓt
where;
X is the horizontal distance = 50 mVₓ is the horizontal speed = ?t is the time of motionVₓ = X/t
Vₓ = (50 m) / (0.064)
Vₓ = 781.25 m/s
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When will the motion of an object be
unchanged?
A. There is a positive net force.
B. The forces are unbalanced.
C. The forces are balanced.
D. The forces are not in equilibrium.
Answer:
C. The forces are balanced.
Explanation:
Every answer other than C means the object moved.
Complete the ray diagram and label incident ray, refracted ray, angle of incidence, and angle of refraction
Answer:
Solution
verified
Verified by Toppr
(a) The labelled diagram is shown.
(b) The refractive index of diamond is 2.42. Refractive index of diamond is the ratio of the speed of light in air to the speed of light in diamond.i.e.,
μ=
Speedoflightindiamond
Speedoflightinair
and, the ratio of these velocities is 2.42. i.e., This means that the speed of light in diamond will reduce by a factor of 2.42 as compared to its speed in air. In other words, the speed of light in diamond is
1/2.42
times the speed of light in vacuum.
Explanation:
a) Draw and label the diagram given :
(i) Incident ray
(ii) Refracted ray
(iii) Emergent ray
(iv) Angle of reflection
(v) Angle of deviation
(v) Angle of emergence
(b) The refractive index of diamond is 2.42. What is the meaning of this statement in relation to speed of light?
Can you answer this math homework? Please!
Weight is thought to be how big or how small and object is. Which of the following is another definition of weight
Answer:
Where is the rest of the question?
How many megabytes does a 30-gigabyte hard drive hold
Answer:
30,000
Explanation:
1 gig is 1000 megabytes
Liquid water is heated until it boils and becomes water vapor. Which statement is true about the water?
A.
Neither the physical properties nor the chemical properties have changed.
B.
The physical properties have changed, but the chemical properties have not.
C.
Both the physical properties and the chemical properties have changed.
D.
The chemical properties have changed, but the physical properties have not.
Your answer is B. The physical properties have changed, but the chemical properties have not
Hope this helps!
A roller coaster’s velocity at the top of a hill is 10 m/s. Two seconds later it reaches the bottom of the hill with a velocity of 26 m/s. What was the acceleration of the coaster? [3]
Answer:
8 m/s²
Explanation:
a = [tex]\frac{v-v0}{t}[/tex]
a = (26 - 10)/2 = 8 m/s²
Một lò xo có cấu tạo đồng đều, chiều dài l0 và độ cứng k0 = 30 N/m. Cắt lò xo thành hai phần có chiều dài tương ứng l1 và l2, độ cứng là k1 và k2 với tỉ lệ 3l1 = 2l2
a. Tính độ cứng k1 và k2
b. Dùng hai lò xo cắt trên để tạo ra hệ lò xo mắc song song rồi mắc vật có khối lượng m vào hệ. Tính độ cứng của hệ hai lò xo?
Answer:
a.tinh do cung k1 va k2 bhsj nshsvsg sjjejsjjsj
Q23 In Hindu chronology, the longest time measure is a para. One para equals 311 040 000 000 000 years. Calculate this value in megayears, hours and in seconds. Write your answers in scientific notation.
The conversion in megayears, hours and seconds are :
[tex]1 \: para \: = \: 3.11 \times {10}^{8} \: megayears[/tex]
[tex]1 \: para \: = \: 2.72 \times {10}^{18} \: hours[/tex]
[tex]1 \: para \: = \: 9.81 \times {10}^{21} \: seconds[/tex]
Given that :
1 para = 311040000000000 years
1 mega year = 1 million years :
311040000000000 years expressed in mega years will be :
Let : number of mega years = p
1 mega year = 1,000,000 years
p = 311040000000000 years
Cross multiply :
311040000000000 × 1 = 1,000,000 × p
311040000000000 = 1000000p
p = 311040000000000 / 1000000
p = 311040000 mega years
p = 3.1104 × 10^8 mega years
[tex]1 \: para \: = \: 3.11 \times {10}^{8} \: megayears[/tex]
In hours :
In hours : 8760 hour = 1 year
Let : number of hours = p
1 year = 8760 hours
311040000000000 years = p
Cross multiply :
p = 8760 × 311040000000000
p = 2724710400000000000
p = 2.72 × 10^18 hours
[tex]1 \: para \: = \: 2.72 \times {10}^{18} \: hours[/tex]
In seconds :
31536000 seconds = 1 year
Let : number of hours = p
1 year = 31536000 seconds
311040000000000 years = p
Cross multiply :
p = 31536000 × 311040000000000
p = 9808957440000000000000
p = 9.81 × 10^21 hours
[tex]1 \: para \: = \: 9.81 \times {10}^{21} \: seconds[/tex]
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difference between objects at rest and objects at motion
Object at rest :
*An object is said to be at rest if it does not change its position with respect to its surroundings with time.
Object at motion:
*An object is said to be in motion if the position changes with respect to it surrounding and time.
Answer:
Objects at rest: Objects at rest are ones that have no motion in them and will be stable in the same position. They have potential energy.
Objects at motion: Objects at motion are ones that are constantly in motion and a consistent velocity until they are acted upon by an unbalanced force. They have kinetic energy.
Explanation:
What is the speed of a kite that travels 120 meters in 4 seconds?
Answer:
30m/s
Explanation:
Use the formula
V= d /t
if you had 6,000 milligrams of rock to move how many kilograms is that?
Answer:
0.006
Explanation:
100mg= 0.0001kgghsjsslslkdn d
explain the various aspects of few medical based profession
Answer:
doctor,health assistant , dentist, psychotherapist , nurse ,etc
Is Global warming changing earth temperature ️
Explanation:
Global warming is the unusually rapid increase in Earth's average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels.Answer:
yes ,global warming and is changing earth temperature as it increases temperature due to increase of greenhouse gases
write the law of friction???
Answer:
The friction of the moving object is proportional and perpendicular to the normal force
The friction of the moving object is proportional and perpendicular to the normal force. The friction experienced by the object is dependent on the nature of the surface it is in contact with. Friction is independent of the area of contact as long as there is an area of contact.
4. In order to operate the theremin, a
conducting object must be moved within
the electric fields produced by the
instrument. Would a baton made of wood
make a good choice? Explain.
No, it would not be a good choice.
Theremin is an electronic musical instrument controlled without physical contact by the performer.
The theremin has inside it three radio-frequency oscillators, of which two form the heart of the pitch circuitry and the third drives the volume circuitry. The theremin typically consists of a box with two metal antennas which create an electromagnetic field. The musician stands in front of the instrument and moves his hands in the proximity of the two antennas, which forms a capacitor between his hands and the antennas.The pitch circuit uses a fixed-frequency oscillator operating at 260 kHz and a variable-frequency oscillator having a range of 257-260 kHz.Learn more:
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A sample of oxygen gas occupies a volume of 200 mL at a pressure of 720 torr. What volume will the gas occupy at a pressure of 800 torr if temperature is held constant
We have that the gas will occupy at a pressure of 800 torr if temperature is held constant a Volume of
[tex]V_2=0.18L[/tex]
From the Question we are told that
Initial Pressure [tex]P_1=720[/tex]
final Volume [tex]V_1=200mL[/tex]
Initial Pressure [tex]P_2=800[/tex]
final Volume [tex]V_2=?[/tex]
Generally the equation for Boyle's law is mathematically given as
[tex]P_1V_1= P_2V_2[/tex]
Therefore
[tex]V_2=\frac{ P_1V_1}{P_2}\\\\V_2=\frac{ 720*200}{800}\\\\V_2=180mL[/tex]
[tex]V_2=0.18L[/tex]
The gas will occupy at a pressure of 800 torr if temperature is held constant a Volume of
[tex]V_2=0.18L[/tex]
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What two types of measurements make up density
Answer:
Mass and volume
Explanation:
Density is determined by two types of measurements mass and volume. The resulting density value is typically expressed in units such as grams per cubic centimeter (g/cm³) or kilograms per liter (kg/L).
Density is determined by two types of measurements:
Mass: Mass is the amount of matter present in an object. It is typically measured in units such as grams (g) or kilograms (kg).
Volume: Volume is the amount of space occupied by an object. It can be measured in units such as cubic centimeters (cm³) or liters (L).
To calculate density, you divide the mass of an object by its volume. The formula for density is:
Density (ρ) = Mass (m) / Volume (V)
The resulting density value is typically expressed in units such as grams per cubic centimeter (g/cm³) or kilograms per liter (kg/L).
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Which is the best estimate for the mass of a typical lineman on a high school football team
1. 100,000 g
2. 100,000 kg
3. 100,000 mg
We have that the best estimate for the mass of a typical lineman on a high school football team is
[tex]100,000 g=100kg[/tex]
From the options
1. 100,000 g
2. 100,000 kg
3. 100,000 mg
Generally
A Typical lineman cannot be as small as
[tex]100000mg=0.1kg=100g[/tex]
A Typical linesman cannot be as massive as
[tex]100,000kg[/tex] as that is unrealistic
With the Average Mass of A Typical linesman can be
[tex]100,000 g=100kg[/tex]
In conclusion
The best estimate for the mass of a typical lineman on a high school football team is
[tex]100,000 g=100kg[/tex]
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Which statement accurately describes the motion of the object in the graph above over 10 seconds? Group of answer choices The object is at rest for 3 seconds and then decreases velocity to 1 cm/s for 3 seconds. The object is at rest for 4 seconds and then moves forward for 4 seconds at 1 cm/s. The object moves forward at 1 cm/s, stops, and then increases velocity to 2 cm/s. The object moves forward at 1 cm/s, stops, and then continues at the same velocity.
Answer:
Object appears to move forward at 1 cm/sec, then the velocity drops to zero for 3 sec and then moves forward at 2 cm/sec (11 - 3) / (10 - 6) = 2 cm/sec
Answer:
The object moves forward at 1 cm/s, stops, and then increases velocity to 2 cm/s.
Explanation:
Not A because velocity doesn't decrease
Not B because it is not at rest for 4 seconds
C is correct
Not D because it is not always at 1 cm/s
