Answer: The answer is C. Hope it helps!!, and if you get it wrong it's my fault
who would benefit of your own handled problem?why?
Answer:
Define the problem . what's exactly going on ?
- set some goals
- examine the consequences
- put your solution into practice
- brainstorm possible solutions
- Team working
Explanation:
ANY PROBLEM RELATED TO MANI CUSTOMER BILLING ACCOUNTING IN BOOKKEEPING ETC
NING A WAY TO MAKE THE COMPANY MORE PRODUCTS FIDABLE THROUGH NEW SERVICE OR PRODUCT OFFERING NEW PRICING IDEA PROMOTING AND SALES IDEA
A plane's propeller has a rotational inertia of 2.0kg * m ^ 2 After a clockwise torque of 4.0Nm was applied to the propeller for 4.0s, the propeller has a clockwise angular speed of 24 * (rad)/s What was the initial angular momenturn of the propeller before the torque was applied ?
The initial angular momentum of the propeller before the torque was applied will be 32 kg m²/s.
What is torque?Torque is the force's twisting action about the axis of rotation. Torque is the term used to describe the instant of force. It is the rotational equivalent of force. Torque is a force that acts in a turn or twist.
The amount of torque is equal to force multiplied by the perpendicular distance between the point of application of force and the axis of rotation.
The given data in the problem is;
The rotational inertia is,I = 2.0 kg m²
The clockwise torque is, T = 4.0Nm
The time period is,t= 4.0s,
The angular speed is,ω= 24 * (rad)/s
The initial angular momentum of the propeller is,I₀
The angular acceleration is found by the relation;
[tex]\rm \tau = I \times \alpha \\\\ \alpha =\frac{\tau}{i} \\\\ \alpha =\frac{4.0}{2.0} \\\\ \alpha= 2.0 \ rad/sec^2[/tex]
The initial angular velocity is found as;
[tex]\rm \omega_f = \omega_0 + \alpha t \\\\ \omega_0 = \omega_f -\alpha t \\\\ \omega_0 =24 -[(-2.0)\times 4.0)] \\\\ \omega_0 = 16 \ rad/sec[/tex]
The initial angular momentum of the propeller is found as;
[tex]\rm L_0 = I \omega_0 \\\\ L_0 = 20 \times (1.6) \\\\ I_0 = -32 \ kgm^2/s[/tex]
Hence,the initial angular momentum will be 32 kg m²/s.
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Answer: 14 kg•m2/s
Explanation:
Trust me it’s from khan
Ydu have 50g of water in a beaker, and the water is 24 degrees Celsius. If
you divide the water into two beakers, with 25g in each beaker, what is
the temperature of each one?
If 50g of water in a beaker is split into two beakers i.e. 25g in each beaker, the temperature of each of one will still be 24°C.
What is temperature?Temperature is the degree of hotness or coldness of a body. Temperature is measured in °C.
According to this question, there is 50g of water in a beaker, and the water is 24 degrees Celsius.
If I divide the water into two beakers, with 25g in each beaker, the temperature of the water in each beaker will be 24°C.
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An object orbiting the sun in an ellipse can be said to be:.
Answer:
always accelerating
Explanation:
Answer:
B. Always accelerating
Explanation:
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Mike stands on a scale in an elevator. If the elevator is accelerating upwards with 4.9 m/s2, the scale reading is ____ times Mike's weight.
Answer:
F - M a force exerted by scales on student
M a = M (9.8 + 4.9) m/s^2 upwards chosen as positive
a = 1.5 g net acceleration of student due to force of scales
W =M g weight of student (actual weight)
Wapp = M 1.5 * g apparent weight (on scales) of student
In an elevator which is accelerating upwards with 4.9 m/[tex]s^{-2}[/tex], Mike's weight will be 1.5 times the actual weight.
In the question, it is given that the lift is accelerating upwards with 4.9 m/[tex]s^{-2}[/tex] Let Mike's weight be "m", "g" is acceleration due to gravity and "a" be the upward accelerationThe upward acceleration of lift = 4.9 m/[tex]s^{-2}[/tex]As the lift is accelerating upwards, the apparent weight (R) = m (g+a)Apparent weight R = m*(9.8+4.9) NApparent weight R = m*(9.8+4.9)/9.8 KgfApparent weight R = m*1.5Hence, the apparent weight will be 1.5 times the real weight.
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Four point charges, each of magnitude 2.38 µC, are placed at the corners of a square 75.2 cm on a side. If three of the charges are positive and one is negative, find the magnitude of the force experienced by the negative charge. The value of Coulomb’s constant is 8.98755 × 10^9 N · m^2/C^2 . Answer in units of N.
Answer:
The Electric Force on Negative Charge is 2.968 N
Explanation:
charge on each corner, q = 2.38 micro coulomb
Side of square, a = 75.2 cm
Coulombic constant, K = 8.98755 x 10^9 Nm²/C²
sides of the square are A,B,C and D
and all sides of a square are equal so
AB = BC = CD = DA = 75.2 cm = 0.752 m
Diagonal, AC = BD = 1.414 x 0.752 = 1.06 m
Electric field at D due to charge at A
EA= Kq÷AB^2
= 8.98755×10^9 × 9.87×10^-6 ÷ 0.752^2
EA= 156863.82 N/C
Similarly Electric field at D due to charge C
EC=Kq÷CD^2
= 8.98755×10^9 ×9.87×10^-6 ÷ 0.752^2
EC= 156863.82 N/C
Electric field at D due to charge at BB
EB=Kq÷BD^2
EB=8.98755×10^9 × 9.87×10^-6 ÷ 1.06^2
EB=78949.01 N/C
Resolve the compoents
Ex = EA + EB cos 45
Ex = 156863.82 + 78949.01 x 0.707
Ex = 212689.2 N/C
Ey = EC + EB Sin 45
Ey = 156863.82 + 78949.01 x 0.707
Ey = 212689.2 N/C
The resultant electric field is
E = 1.414 x 212689.2 = 300787.95 N/C
the electric force on the negative charge is
F = q x E
F = 9.87 x 10^-6 x 300787.95
F = 2.968 N
A police car is asked to overtake a red sedan that is 16 km ahead of it on the freeway. The red sedan is traveling at 80 km/hr and the police car travels at 100 km/hr. When will the police car overtake the sedan?
Answer:
S = v0 t + 1/2 a t^2 a = 0 seems given in the problem
Vp t = Vr t + 16
both travel for time t but the police car is going faster and travels 16 km farther
t (Vp - Vr) = 16
t = 16 km / (100 - 80) km/hr
t = 16 / 20 hr = 4/5 hr = 48 min
Hello people ~
please help me with thie question attached above.
Thanks in advance!
Answer:
W = 1/2 x P x E
Explanation:
Let :
P = electric dipole momentE = uniform electric fieldα = initial angleβ = final angleFormula
The work done in a electric field can be found using the formula :W = P x E x (cosα - cosβ)Solving
W = P x E x (cos0° - cos60°)W = P x E x (1 - 1/2)W = 1/2 x P x ELet's see
[tex]\\ \rm\rightarrowtail W=P\vec{E}(cos\theta_i-cos\theta_f)[/tex][tex]\\ \rm\rightarrowtail W=P\vec{E}(cos0-cos60)[/tex]
[tex]\\ \rm\rightarrowtail W=P\vec{E}(1-1/2)[/tex]
[tex]\\ \rm\rightarrowtail W=\dfrac{P\vec{E}}{2}[/tex]
What are the three main guidelines in psychological research?
Answer:
Ethical Guidelines for Research With Human Subjects
Participation Must Be Voluntary.
Researchers Must Obtain Informed Consent.
Researchers Must Maintain Participant Confidentiality
Explanation:
Basta Yun na yan correct me if I'm wrong hehehhe
What do ethical guidelines for research with human subjects mean?
By minimizing harms and risks and maximize benefits , respect human dignity, privacy and autonomy, take special precautions with vulnerable population and strive to distribute the benefits and burdens of research fairly
1. 50 W and 100 W lamps are designed for the same voltage. Which lamp has the higher filament resistance and why?
2. At a voltage of 4 V, 300 mA flows through the bulb. What is the work done by the electric current in 5 min?
3. The label on the lamp says 100 W, 220 V. Calculate the resistance of the lamp?
4. What is the work done by the motor of a floor polisher in 25 min with a voltage of 220 V, a current rating of 1,25 A and a motor efficiency of 80%?
help
Answer:
Look below.
Explanation:
1.) The resistance of a light bulb filament is effected by both length and cross-sectional area. Thicker wires have less resistance. A 120-Watt bulb has a greater current and a smaller resistance. Thus, a 120-Watt bulb must have a thicker filament than a 60-Watt bulb (assuming the lengths of the filaments are identical). We also think of lightbulbs in terms of their power ratings in watts. Let us compare a 25-W bulb with a 60-W bulb. Since both operate on the same voltage, the 60-W bulb must draw more current to have a greater power rating. Thus the 60-W bulb’s resistance must be lower than that of a 25-W bulb. If we increase voltage, we also increase power. For example, when a 25-W bulb that is designed to operate on 120 V is connected to 240 V, it briefly glows very brightly and then burns out. Precisely how are voltage, current, and resistance related to electric power?
2.) Energy transferred = 120 × 2 = 240 J. This equation can be rearranged to V = E ÷ Q. So voltage is energy transferred divided by charge.
3.) Power= Voltage × Current
4.) W=Pt
Which of the following is the measure of average kinetic energy of the particles in a
substance?
А
Diffusion
B
Atmospheric Pressure
С
Temperature
D
Vapor Pressure
Answer:
The correct answer is C
Explanation:
Hope this helped :)
if im wrong pls tell me.
hello people ~
Both chasmogamous and cleistogamous flowers are present in
(a) Helianthus
(b) Commelina
(c) Rosa
(d) Gossypium
(b) Commelina
Explanation:
Both chasmogamous and cleistogamous are present in Commelina.
In commelina, the flowers have anthers and stigma hanging outside of the flower. Petals are colourful and contains scent and nectars to attract birds and insects. Both of these are present in commelina flowers.
Answer:
Commelina
Explanation:
Commelina is type of flower at where the stings and anthers remains hanging outside of the flower.To get help in pollination they used to attract insects by their scentsMass is measured in what unit and what tool is used
→ Mass is measured in(unit)
kilogram (kg) nd smaller mass in gram(g)→ The tool which is commonly used
triple beam balance electronic balanceweighing machinend many more......
__________________☃️[tex]\sf{\:мѕнαcкεя\: ♪...}[/tex]
Answer:
→ Mass is measured in(unit)
kilogram (kg) nd
smaller mass in gram(g)
→ The tool which is commonly used
triple beam balance
electronic balance
weighing machine
Explanation:
Which sound frequency could a human detect? 1 hertz 10 hertz 50 hertz 50,000 hertz.
Answer:
Good human ears can detect sound from about 50 Hz to about 20,000Hz (20 kHz); this can be called the audible range of frequencies.
so c.50 hertz
Explanation:
Hope it helps :)
Answer:
50 hertz
Explanation:
This is right
A brick is sitting motionless on top of a wall. What type of energy does it have? (1 point)
A) geothermal energy
B) electromagnetic energy
C) potential energy
D) kinetic energy
The block that is sitting motionless on top of a wall contains potential energy.
What is energy?Energy is the ability to do work. There are several forms of energy. For the block that is sitting motionless on top of a wall, the block contains potential energy.
The potential energy is the block is used to do work when the block falls. The block can break a piece of glass on the floor due to the energy that it contains.
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A wooden block of a mass of 2.0kg is 20cm thick by 10cm wide by 30cm tall.
calculate the minimum and maximum pressure this block could exert on the surface ?
Answer:
See below ↓↓
Explanation:
Formula
Pressure = Force/AreaForce
It will be constant in both cases as mass remains the samF = mg = 2 x 10 = 20 NCase (i) : Maximum Pressure
Area has to be minimumA = 10 x 20 = 200 cm² ≅ 0.02 m²P = F/A = 20/2 x 10⁻² = 1000 PaCase (ii) : Minimum Pressure
Area has to be maximumA = 30 x 20 = 600 cm² ≅ 0.06 m²P = F/A = 20/6 x 10⁻² = 3.33 x 10² = 333 PaWhat type of particle carries an electric current through a wire? Voltage is another name for the __________ difference. What word completes the sentence?
Answer:
electric potentialbrainless plsss
What would likely happen if the fed changed reserve requirements?
Answer:
When the Fed adjusts the reserve requirement, it allows banks to charge lower interest rates.
Explanation:
Hope this helps.
One end of a copper rod is placed in a flame of a Bunsen burner. Small pieces of wax placed along the rod melt at progressively larger distance from the flame. Heat is transferred through the rod by ________.
1) Convection
2)Radiation
3)Conduction
Answer:
3) Conduction
Explanation:
When heat is transferred through a material, it can be referred to as conductionThe wax on the rod can only melt by the rod only if it is in contact with itBRAINLIEST!!! how did the intensity of a sound wave change if the distance from the source is decreased by a factor of 2? Right answers only!!!
a. the intensity increases by a factor of 4
b. the intensity increases by a factor of 2
c. the intensity decreases by a factor of 2
d. intensity decreases by a factor of 4
Answer:
D.
Explanation:
The answer should be D. because if it increases by a factor of 2 then it will decrease at a factor of 4.
I hope it helps! Have a great day!
Anygays-
Fluorescence occurs when an object absorbs ____________________ and immediately releases the energy as visible light.
Answer:
The answer should be light or other electromagnetic radiation
Explanation:
Such as x-rays or other things like that.
-Hope This Helps!
-Justin:)
1. When a net force F acts on an object of mass M, the object accelerates at 16 m/s². An equal net force F acts on a second object of mass 2M. What is the acceleration of this second object?
Ten reasons why we study physics
Explanation:
You Can Solve Problems. ...
A Wide Range Of Career Opportunities. ...
It Keeps You On Your Toes. ...
It Complements Different Subjects, Such As Maths. ...
It Gives You A Challenge. ...
You Could Work Overseas. ...
Acquire Skills Valuable To Employers.
Appreciate Modern Technology
Embrace Post Graduate Research Opportunities
What is the result of a short circuit that bypasses all resistors in a circuit?
Answer:
All of the current flows through the short circuit branch and Bypasses the other branches. This causes the excessive amount of current to flow since there is practically no resistance. Short-circuit across the power supply can damage or destroy it.
Explanation:
Hope this helps you!
Mars moves in an elliptical orbit around the Sun. The location of the Sun relative to this ellipse is
Answer:
It is when the focus of the ellipse that is closer to the point where Mars is moving the fastest.
Explanation:
I hope it helps! Have a great day!
Anygays-
How much work can a 1000-watt motor do in 5.0 seconds?
A. 4.0 × 101 J
B. 2.0 × 102 J
C. 5.0 × 103 J
D. 2.5 × 104 J
Answer:
C
Explanation:
watt = j/sec and work = j
so multiply watt * sec to get work
1000 j/sec * 5 sec = 5000 j = 5 x 10^3
explain the concept of force by practical examples of daily life
Answer:
a bicycle moving
Explanation:
due to the force that is applied towards the wheels of a bicycle and also gravitation the wheels. of a bicycle are therefore able to move
When the reflecting wave flips upside-down on a stretched
string, which of the following is correct?
a The stretched string is with a fixed boundary
b The stretched string is with a free boundary
с
The stretched string may have a fixed boundary or
a free.
d The given information is not enough.
e None of the above is correct.
The reflecting wave flips upside-down on a stretched string when the wave moves from a less dense part of the rope moves toward a boundary that has a higher density. Hence the correct answer is (Option E).
What is a Reflecting Wave?A reflecting wave is a wave that abruptly changes its propagation direction when it hits the boundary between two media.
An echo is a real-world example of a reflecting wave.
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In three to four sentences, explain how climate change could impact the formation of hurricanes. (4 points)
The climate change can directly impact the formation of hurricanes because increasing temperature increases intensity of hurricanes.
How climate change could impact the formation of hurricanes?Evaporation increases as temperatures rise which also causes the transfer of heat from the oceans to the atmosphere. As the storms travel across oceans whose water is warm, they absorb more water vapor and heat which increases rainfall as well as intensity of hurricanes.
So we can conclude that the climate change impacted the formation of hurricanes due to increasing temperature that increases intensity of hurricanes.
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