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Physics

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Anonymous

Feb 13, 2025

What happened when Zonk blew air into a rubber glove?

Hello MyBestAnswer members, I have a question for you: What happened when Zonk blew air into a rubber glove? Could you please provide a detailed explanation? Thank you!
3 answers 110
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Anonymous

Feb 13, 2025

What type of simple machine are falling dominos? Are they levers?

What type of simple machine are falling dominos? Are they levers? I'm curious about the mechanics involved in this common physics demonstration. Thanks for your insights!
1 answers 131
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Anonymous

Feb 13, 2025

How long will it take to pass a passenger car at 60 mph without oncoming traffic?

How long will it take to pass a passenger car at 60 mph without oncoming traffic? Could you please provide a detailed explanation, including any relevant factors or safety considerations? Thank you.
1 answers 233
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Anonymous

Feb 13, 2025

How will the orbits of planets be modified if they were electrically charged?

How would the orbits of planets be modified if they were electrically charged? Please provide a detailed explanation, considering the impact of electrical charges on planetary motion and gravitational...
1 answers 148
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Anonymous

Feb 13, 2025

If this same quantity of energy were transferred to 2.5 kg of water at its boiling point, what fraction of the water would be vaporized?

"If this same quantity of energy were transferred to 2.5 kg of water at its boiling point, what fraction of the water would be vaporized? Quantitative Energy Problem: Energy Constants for Water (H2O):...
1 answers 108
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Anonymous

Feb 13, 2025

A sprinkler mounted on the ground sends out a jet of water at a 30-degree angle to the horizontal.

A sprinkler mounted on the ground sends out a jet of water at a 30-degree angle to the horizontal. The water leaves the nozzle at a speed of 12 m/s. How far does the water travel before it hits the gr...
1 answers 190
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Anonymous

Feb 13, 2025

What is 90 degrees in foot-pounds?

What is the equivalent of 90 degrees in foot-pounds?
1 answers 211
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Anonymous

Feb 13, 2025

What is the energy in joules of a photon whose frequency is 3.55 × 10^17 Hz?

Please help me with this question: What is the energy in joules of a photon whose frequency is 3.55 × 10^17 Hz? I would appreciate a quick response. Thank you!
1 answers 75
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Anonymous

Feb 13, 2025

Would a lighter make a metal detector beep?

Would a lighter cause a metal detector to beep? I'm curious about this and would appreciate a quick response. Thanks in advance!
1 answers 182
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Anonymous

Feb 13, 2025

When having sex in a car, why do the windows fog?

Hi MyBestAnswer members, I have a question about why car windows fog up during intimate activities. Could you please explain the scientific reasons behind this phenomenon?
1 answers 143
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Anonymous

Feb 13, 2025

Which U.S. coin is the densest: the nickel, the penny, the dime, or the quarter?

Please help me with a question: Which U.S. coin is the densest—the nickel, the penny, the dime, or the quarter? I would appreciate a quick response. Thank you!
2 answers 187
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Anonymous

Jan 25, 2025

1. Based on the diagram below, rank the three objects from least dense to most dense. Y N O A. Object X, object Z, object Y O B. Object

Based on the diagram below, please rank the three objects from least dense to most dense. A. Object X, Object Z, Object Y B. Object Z, Object Y, Object X C. Object X, Object Y, Object Z D. Object Y,...
4 answers 107
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Anonymous

Feb 02, 2025

1. Hot coffee is stirred with a spoon, the spoon gets hot due to . 2. A chair is placed several feet from a fire in a fireplace. The

When hot coffee is stirred with a spoon, the spoon becomes hot due to thermal conduction. Can you explain how thermal conduction works in this scenario? A chair is placed several feet away from a...
6 answers 133
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Eric Stiedemann

Nov 16, 2024

1. which of the following is not part of john dalton’s atomic theory?

Which of the following statements is not part of John Dalton's atomic theory? a. All elements are composed of atoms. b. All atoms of the same element have the same mass. c. Atoms contain subatomic par...
10 answers 244
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Anonymous

Feb 02, 2025

10 points!!!What energy conversion occurs when a battery powered car rolls across the floor?

What energy conversion occurs when a battery-powered car rolls across the floor? This question is worth 10 points. I need assistance! Here are the options: a) Stored chemical energy is converted to me...
1 answers 229
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Anonymous

Feb 06, 2025

115v / 60hz = how many amps?

What is the amperage when using a 115V, 60Hz electrical supply?
2 answers 90
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Anonymous

Jan 16, 2025

2. Spaghetti takes about 9 minutes to cook at sea level, but about 14 minutes in the mountains. Why do you think this is so?

Spaghetti typically takes about 9 minutes to cook at sea level, but it requires approximately 14 minutes in the mountains. What factors contribute to this difference in cooking time? Specifically, con...
10 answers 87
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Anonymous

Nov 28, 2024

208Pb2+name? protons? neutrons? electrons? and mass number?

What is the name of the ion 208Pb²⁺? Additionally, could you provide information on the number of protons, neutrons, and electrons it contains, as well as its mass number?
3 answers 185
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Angelica Fadel

Nov 05, 2024

234/90Th undergoes beta decay. What is the atomic number of the resulting element?

When the isotope 234/90Th undergoes beta decay, what is the atomic number of the resulting element?
1 answers 227
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Anonymous

Nov 02, 2024

3 Questions in Science need help !!! thanks?

A machine can make work easier by: a) making work easier to do b) changing the size of the force needed c) changing the direction or distance of the force d) all of the above How can...
2 answers 118
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Anonymous

Oct 20, 2024

45lc vs .45 acp Stoping power and recoil revolver?

How does the recoil of a .45 Long Colt revolver compare to that of a .45 ACP revolver, and which cartridge has greater stopping power?
9 answers 75
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Vallie Hahn

Feb 08, 2025

5 SIMPLE uses of solenoids in everyday life?

Could you provide five simple examples of solenoids used in everyday life, along with brief descriptions of each? For instance, I am aware of their applications in doorbells, door magnets, and roller...
5 answers 200
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Anonymous

Nov 14, 2024

6. which one of the following statements does not accurately describe vibrations?

Which of the following statements does not accurately describe vibrations? a. Forced vibrations, such as those between a tuning fork and a large cabinet surface, result in a much lower sound than that...
10 answers 63
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Anonymous

Oct 28, 2024

A 0.025-kg bullet is fired vertically at 208 m/s into a 0.15-kg baseball that is initially at rest. The bullet?

A 0.025-kg bullet is fired vertically at a speed of 208 m/s into a 0.15-kg baseball that is initially at rest. The bullet lodges in the baseball, and after the collision, the baseball and bullet rise...
1 answers 154
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Anonymous

Feb 18, 2025

a 0.12 kg disk is shot across a frictionless horizontal surface by being compressed against a spring?

In an arcade game, a 0.12 kg disk is shot across a frictionless horizontal surface after being compressed against a spring. The spring has a spring constant of 200 N/m and is compressed 6.0 cm from it...
1 answers 125
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Geraldine Gutmann

Oct 22, 2024

A 1.50m -long, 550g rope pulls a 7.00kg block of ice across a horizontal, frictionless surface. Physics Help?

A 1.50 m long, 550 g rope pulls a 7.00 kg block of ice across a horizontal, frictionless surface. The block accelerates at 2.20 m/s². How much force is exerted forward on (a) the ice and (b) the rope?
3 answers 236
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Anonymous

Dec 20, 2024

A 1.5V battery is connected to a small light bulb with a resistance of 3.5Ω. What is the current in the bulb?

A 1.5V battery is connected to a small light bulb with a resistance of 3.5Ω. What is the current flowing through the bulb?
5 answers 164
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Anonymous

Feb 02, 2025

A 1.800-g sample of solid phenol (C6H5OH(s)) was burned in a bomb calorimeter whose total heat capacity is 11.66 kJ/?

A 1.800-g sample of solid phenol (C6H5OH(s)) was burned in a bomb calorimeter with a total heat capacity of 11.66 kJ/°C. The temperature of the calorimeter and its contents increased from 21.36 °C to...
3 answers 174
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Anonymous

Dec 16, 2024

A 100 N force acts along the x axis and a 150 N force acts at an angle of 40 degrees above the x axis.?

A 100 N force acts along the x-axis, while a 150 N force acts at an angle of 40 degrees above the x-axis. a) What is the resultant force vector? b) What is the magnitude of the resultant force? c) Wh...
3 answers 177
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Anonymous

Dec 29, 2024

A 12-kg hammer strikes a nail at a velocity of 8.5m/s?

A 12-kg hammer strikes a nail with a velocity of 8.5 m/s and comes to rest in a time interval of 8.0 ms. (a) What is the impulse imparted to the nail? (b) What is the average force exerted on the nail...
1 answers 202
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Anonymous

Nov 13, 2024

A 1300-N crate rests on the floor. How much work is requred to move it at constant speed…?

A 1300-N crate rests on the floor. How much work is required to move it at a constant speed (a) 4.0 m along the floor against a friction force of 230 N, and (b) 4.0 m vertically? I’m unsure how to app...
2 answers 74
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Anonymous

Dec 10, 2024

A 1500 W electric heater is plugged into the outlet of a 120 V circuit that has a 20 A circuit breaker.?

You plugged a 1500 W electric heater into a 120 V outlet, which is protected by a 20 A circuit breaker. Additionally, you connected an electric hair dryer with power settings of 600 W, 900 W, 1200 W,...
1 answers 192
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Anonymous

Nov 18, 2024

A 20.0μF capacitor initially charged to 30.0μC is discharged through a 1.40kΩ resistor. How long does it take?

A 20.0 μF capacitor, initially charged to 30.0 μC, is discharged through a 1.40 kΩ resistor. How long will it take for the capacitor's charge to decrease to 3.00 μC? Please provide your answer in mill...
1 answers 183
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Anonymous

Feb 02, 2025

A 30-kg iron block and a 40-kg copper block, both initially at 808C, are dropped into a large lake at 158C. Thermal equilibrium is

A 30-kg iron block and a 40-kg copper block, both initially at 80°C, are dropped into a large lake with a temperature of 15°C. As a result of heat transfer between the blocks and the lake, thermal equ...
3 answers 141
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Anonymous

Feb 13, 2025

A 4.0 cm tall candle flame is 2.0 m from a wall.

A candle flame measuring 4.0 cm in height is positioned 2.0 m away from a wall. You have a lens with a focal length of 32 cm. How many positions can you place the lens to create a well-focused image o...
1 answers 87
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Anonymous

Dec 08, 2024

A __________ headlight lens can cut the amount of light it emits by 90%.?

What type of headlight lens can reduce the amount of light it emits by 90%?
3 answers 82
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Anonymous

Oct 22, 2024

A ball with a horizontal speed of 1.25m/s rolls off a bench 1.00m above the floor…(additional info. given)?

A ball with a horizontal speed of 1.25 m/s rolls off a bench that is 1.00 m above the floor. A) How long will it take for the ball to hit the floor? B) How far from the point on the floor directly b...
2 answers 235
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Anonymous

Jan 04, 2025

A baseball outfielder throws a 0.150 kg baseball at a speed of 37.0 m/s and an initial angle of 27.0°. What is?

A baseball outfielder throws a 0.150 kg baseball at a speed of 37.0 m/s and an initial angle of 27.0°. What is the kinetic energy of the baseball at the highest point of its trajectory?
3 answers 208
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Anonymous

Jan 18, 2025

A basket of negligible weight hangs from a vertical spring scale of force constant 1500N/m .?

A basket of negligible weight hangs from a vertical spring scale with a force constant of 1500 N/m. If you suddenly place a 3.00 kg adobe brick in the basket, what is the maximum distance the spring...
2 answers 80
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Anonymous

Nov 14, 2024

A bicycle wheel has an initial angular velocity of 1.50 rad/s.

A bicycle wheel has an initial angular velocity of 1.50 rad/s. a) If its angular acceleration is constant and equal to 0.300 rad/s², what will its angular velocity be at t = 2.50 s? b) What angle ha...
2 answers 82
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Anonymous

Nov 28, 2024

A bullet can travel at a speed of over 1000m/s.?

A bullet can travel at speeds exceeding 1000 m/s. When a bullet is fired from a rifle, the initial sound produced by the firing is distinct; however, people at a distance may hear a second sound that...
4 answers 76
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Mozell Dicki

Nov 07, 2024

A cannonball shot with an initial velocity of 141 m/s at an angle of 45 degrees follows a parabolic path and ?

A cannonball is shot with an initial velocity of 141 m/s at an angle of 45 degrees, following a parabolic path. It hits a balloon at the peak of its trajectory. Neglecting air resistance, what is the...
4 answers 189
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Anonymous

Dec 01, 2024

A car is traveling at 16 m/s .?

A car is traveling at a speed of 16 m/s. What speed would the car need to reach in order to double its kinetic energy? Additionally, by what factor does the car's kinetic energy increase if its speed...
2 answers 206
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Anonymous

Feb 10, 2025

A car starts from rest at a stop sign. It accelerates at 2.0 m/s^2 for 6.0 seconds, coasts for 2.0?

A car starts from rest at a stop sign. It accelerates at a rate of 2.0 m/s² for 6.0 seconds, coasts for 2.0 seconds, and then slows down at a rate of 1.5 m/s² until it reaches the next stop sign. How...
2 answers 73
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Anonymous

Dec 22, 2024

A car starts from X = 11m at t = 0 and moves with the velocity graph shown in figure below. [email protected] 2s,3s,4s?

A car starts from a position of ( x = 11 \, \text{m} ) at ( t = 0 ) and moves according to the velocity graph shown below. GRAPH: [Insert link here] A) What is the object's position at ( t = 2\, \tex...
3 answers 192
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Anonymous

Oct 21, 2024

A centrifuge rotor has a moment of inertia of 3.20 10-2 kg·m2.?

A centrifuge rotor has a moment of inertia of 3.20 x 10^-2 kg·m². How much energy is required to accelerate it from rest to a speed of 8000 revolutions per minute (rpm)?
2 answers 150
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Anonymous

Nov 07, 2024

A certain shade of blue has a frequency of 7.11×10^14 Hz. What is the energy of exactly one photon of…?

A certain shade of blue has a frequency of 7.11 × 10^14 Hz. What is the energy of one photon of this light? I would greatly appreciate it if someone could help me work this out and explain the process...
2 answers 54
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Anonymous

Nov 17, 2024

A certain sound level is increased by an additional 20 dB. By how much does its intensity increase?

A certain sound level is increased by an additional 20 dB. By how much does its intensity increase? The answer provided is 100. Could someone please solve this and explain the process without using a...
1 answers 244
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A Cessna aircraft has a lift-off speed of 120 km/h.?

A Cessna aircraft has a lift-off speed of 120 km/h. (a) What is the minimum constant acceleration required for the aircraft to become airborne after a takeoff run of 220 meters? (b) How long does it...
3 answers 222
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Anonymous

Jan 14, 2025

A child playing in a swimming pool realizes that it is easy to push a small inflated ball under the surface of?

A child playing in a swimming pool observes that it is easy to push a small inflated ball under the water’s surface, while a larger ball requires significantly more force. The child also has a styrofo...
2 answers 138