PHYSICS HIGH SCHOOL

Plz answer will give Brainliest answer to whoever does.
Plz answer will give Brainliest answer to whoever does. - 1

Answers

Answer 1
Answer:

Answer:

  • A foot kicking a ball
  • A iPhone/phone being charged

Explanation:

A foot kicking a ball:

Potential energy is converted to kinetic energy.

A iPhone/Phone being charged:

Electrical energy is converted to chemical energy.
Answer 2
Answer:

Answer:

A foot kicking ball.

An iPhone being charged

Explanation:

  • A foot kicking a ball is example of transportation of Kinetic energy

\n \sf\longmapsto K.E=(1)/(2)mv^2

  • An iPhone being charged means the electronic energy is converted into machinery energy

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A patient with type A blood is accidentally given a transfusion of type AB blood. Which of the following correctly describes what will happen in the patient's body?
An unknown substance has a mass of 0.125 kg and an initial temperature of 90.5°C. The substance is then dropped into a calorimeter made of aluminum containing 0.285 kg of water initially at 29.5°C. The mass of the aluminum container is 0.150 kg, and the temperature of the calorimeter increases to a final equilibrium temperature of 32.0°C. Assuming no thermal energy is transferred to the environment, calculate the specific heat of the unknown substance.
The theoretical line perpindicular to the surface where a light ray hits a mirror is called the
Special relativity questions?1.) A rocket is moving at 1/4 the speed of light relative to Earth. At the center of this rocket, a light suddenly flashes. To an observer at rest on Earth a. the light will reach the front of the rocket after it reaches the back of the rocket. b. the light will reach the front of the rocket at the same instant that it reaches the back of the rocket. c. the light will reach the front of the rocket before it reaches the back of the rocket. 2.) A rocket is moving at 1/4 the speed of light relative to Earth. At the center of this rocket, a light suddenly flashes. To an observer at rest in the rocket a. the light will reach the front of the rocket before it reaches the back of the rocket. b. the light will reach the front of the rocket at the same instant that it reaches the back of the rocket. c. the light will reach the front of the rocket after it reaches the back of the rocket. 3.) An astronaut in an inertial reference frame measures a time interval Δt between her heartbeats. What will observers in all other inertial reference frames measure for the time interval between her heartbeats? a. Δt b. less than Δt c. more thanΔt d. The answer depends on whether they are moving toward her or away from her. 4.) You are a passenger on a spaceship. As the speed of the spaceship increases, you would observe that a. the length of your spaceship is getting shorter. b. the length of your spaceship is not changing. c. the length of your spaceship is getting longer. 5.) A star is moving towards the earth with a speed at 90% the speed of light. It emits light, which moves away from the star at the speed of light. Relative to us on earth, what is the speed of the light moving toward us from the star? a. 0.90c b. 1.9c c. 1.20c d. 1.1c e,) c

At room temperature and pressure, alcohol is in which state of matter? solid, liquid, gas, or plasma **not sure!

Answers

i think it's liquid because alcohol are liquid.
Well, plasma, I'm not sure what that does so I won't touch that, it would have to be frozen to be a solid, and there are two types of alcohol, the drinking kind and rubbing alcohol, which are both liquids, so it would be in a liquid state no matter how much pressure you put on it

2. What happens when multiple forces act on an object?A. The object will always move.
B. The object will move if the forces are balanced.
C. The object will move if the forces are unbalanced.
D. The object will always stay in place.
3. An object moves in the direction of the __________ force.
A. net
B. balanced
C. strongest
D. weakest

Answers

2) The correct answer is option C i.e. The object will move if the forces are unbalanced. The objects move only on the application of unbalanced forces. 3. The correct answer is option A. i.e. net An object moves in the direction of the net force. The object moves in the direction of resultant or net force.

Answer:

C. The object will move if the forces are unbalanced.

A. net

Explanation:

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earth were now in synchronous rotation with the moon? that is, suppose that earth rotated at the same rate that the moon orbits earth. what would be differ-ent about earth and life on it?

Answers

Answer:The day and night cycle would change bye 1.34 hours

Explanation:

In a nuclear reactor, the moderator is: usually made of graphite placed between the fuel rods used to slow down neutrons all of the above none of the above

Answers

The correct answer is all of the above. In a nuclear reactor, the moderator is usually made of graphite, placed between the fuel rods, and used to slow down neutrons. The nuclear moderator is a medium in which reduces the speed of the fast neutrons.  

The answer is D. All the above


Two technicians are discussing testing MAP sensors. Technician A says that the MAP sensor should be replaced if anything comes out of the sensor when the vacuum hose is removed from the sensor. Technician B says that the injector pulse width should increase when vacuum to the MAP sensor is increased. Which technician is correct?a.Technician A onlyb.Technician B onlyc.Both Technicians A and Bd.Neither Technician A nor B

Answers

The statements from both Technicians A and B are correct.

Answer: Option C

Explanation:

A typical MAP sensors comprises with a ceramic or silicon wafers, sealed with an ideal vacuum on one side and a suction manifold on the other. When the engine (motor) vacuum varies, the differential pressure across the board changes the output voltage or frequency to the MAP sensor. So, sensor vacuum to be increased if injection pulse widths increase.

Most pressure sensors operate at 5 volts from a computer and return a signal (voltage or frequency) based on the pressure applied to the sensor (vacuum). When testing the MAP sensor, make sure that the vacuum hose and hose connections are tightly connected to the engine vacuum source. According to this, concluding that the statements from both technicians are correct.

Consider these scenarios. A pink box with containing the words Scenario 2 You are about 7 meters away from a metal bar that is struck with a drumstick. The sounds travels through the air to your ear. In which of these scenarios would the sound of the drumstick hitting the metal bar get to you in the least amount of time? Explain your answer.

Answers

Answer:

Scenario 1 will cause the sound of the drumstick hitting the metal bar to reach your ears in the least amount of time.

Explanation:

The sound wave will travel faster in the metal bar than through the air because the speed of sound waves in solids is faster than it is in gases.

Answer:

Scenario 1 will cause the sound of the drumstick hitting the metal bar to reach your ears in the least amount of time.

Explanation:

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