What are some science ideas??

Q: From a point on the ground at a distance 15 m from the foot of a vertical wall, a ball is thrown at ...

A: Given Data:- Distance of the initial point from where the ball was thrown from the wall is d1=15 m T...

Q: A 26 g bullet traveling 201 m/s penetrates a 2.0 kg block of wood and emerges going 172 m/s. If the ...

A: According to momentum conservation Momentum before collision= momentum after collision Pi=Pf.. In th...

Q: Leo is spinning a basketball with a radius of 12 cm on the tip of his finger. Determine the mass of ...

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Q: In isolated system, the total amount of energy is . * constant O high O low zero O 100 % O O O O

A: An isolated system is a thermodynamic system that cannot transfer or exchange energy or matter betwe...

Q: Weight is equal to the magnitude of the ... exerted on the object. O Mass O Length O Energy Gravitat...

A: Let the mass of an object = mLet the acceleration due to gravity = g   

Q: Find  the  time  (seconds) needed  for  an  object  to  fall down from  the top  of  a  building 495...

A: Given value--- height = 495 m. We have to find--- time ?

Q: A 0.25-hp motor is used to lift a load at the rate of 5.0 cm/s. How great a load can it raise at thi...

A: Given: The power is 0.25 hp. The constant speed of the motor is 5 cm/s.  

Q: As shown below, the eyes of a giraffe are a distance H1 = 5.56 m above the ground and a distance L1 ...

A: H1 = 5.56 m L1 = 3.7 m H2 = 1.77 m To find : L2  

Q: F = 5 units, SW N. Draw the following vectors from the origin of a single x-y plane. A = 4 units, 25...

A: A vector can be drawn by arrows by taking length of arrow as magnitude and direction by angle.

Q: A 5 kg object is to be given an upward acceleration of 0.5 m/s^2 by a rope pulling straight upward o...

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Q: is a scalar quantity. Velocity O Force Speed O Weight O Gravitational Force When multiply two vector...

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Q: A stone is thrown straight upward with a speed of 25 m/s. It is caught on its way down at a point 5 ...

A: The vertical displacement of stone is   y=y_0+v_0t-(1/2)gt^2  5=25t-(1/2)(9.80)t^2 5=25t-4.90t^2 On ...

Q: What is the effective capacitance of the network below? (in µF) 600 μF 200 μF 100 μF 300 μF 200 μ O ...

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Q: What is the instantaneous velocity of a freely falling object 5.0 s after it is release from a posit...

A: Given data:  Initial velocity (Vi) = 0 m/s Time (t) = 5.0 s

Q: 16 A 27-gram bullet traveling at 234 m/s penetrates a 5-kg block of wood and emerges clearly at 167...

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Q: A negatively charged infinite planar sheet is placed in between two positively charged planar sheets...

A: first plate = positive second plate = positive third plate = negativethe magnitude of charge density...

Q: A battery with an EMF of 12 V and an internal resistance of 1 Q is used to charge a battery with an ...

A: Given: The emf of the first battery is 12 V and internal resistance 1 Ohm. The emf of the second bat...

Q: There are 5,280 feet in a mile. If you have slowed down and are now traveling 40 feet per second and...

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Q: Activity 1: RELATIONSHIP OF ELECTRIC FORCE, ELECTRICAL CHARGE AND DISTANCE OF CHARGES. DIRECTIONS: C...

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Q: Calculate the electric flux in each surface: S2 10.0 µC +3.0 µC +1.0 uC +7.0 µC -8.0 µC

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Q: A dart is thrown horizontally with an initial speed of 19 m/s toward point P, the bull's-eye on a da...

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Q: Two positive charges, Q1 = 0.3 µC and Q2 0.9 µC are arranged in a straight line as shown in the figu...

A: Given,Two positive charges,Q1 = 0.3 μCQ2 = 0.9 μCd1 =9 cm d2 = 1 cm

Q: In an isothermal reversible expansion at 31°C, an ideal gas does 28 J of work. What is the entropy c...

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Q: A cylindrical tank with a piston on top confines a 498.12 K of nitrogen gas in a 2.0 m3 space betwee...

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Q: Two charges are separated by 5m. One has 3nC and the other has -7nC. What is the electric field at t...

A: distance = d = 5 m q1= 3 nC q2 = 7 nC

Q: 3. A vessel of volume 2000 cm° contains 0:1 mol of oxygen and 0-2 mol of carbon dioxide. If the temp...

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Q: 1. The speed of a racing car is increased at constant rate from 80 kph to 138 kph over a distance of...

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Q: Which of the following statements for single optic devices are true? Choose all that apply. a. Any ...

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Q: The diagrams show three circuits with identical batteries, identical inductors, and identical resist...

A: Let each resistance is R . Let voltage of each battery is V .

Q: How much work (in eV) does it take to move a 3 protons through a 30 V potential difference?

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Q: A 5-kg mass falls 100 cm. How much work was done on it by the gravitational force? * O 78 J 71 J 50 ...

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Q: .is energy determined by the configuration of a system in which the components of the system interac...

A: 1) The force in the potential energy is exerted by the force field such as spring force and gravity....

Q: A horseshoe player releases the horseshoe at A with an initial speed vo = 36 ft/sec. Determine the r...

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Q: Calculate the rotational inertia of a meter stick, with mass 0.523 kg, about an axis perpendicular t...

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Q: The power lines that run through your neighborhood carry alternating currents that reverse direction...

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Q: The electric potential, relative to infinity, of a certain charge dis- tribution with a total charge...

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Q: Show your complete solution. From the figure, the four particles form a square of edge length a = 4 ...

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Q: A positive charge of 5 µC exerts and attractive force of 7 N on an unknown charge 0.1 m away. The un...

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Q: Directions: Analyze the given problems below. Write your complete solution. 1. A parallel plate capa...

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Q: Tom, a cat, squeezes into a 0.50 m diameter cylindrical trash can to find a late-night snack. Howeve...

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Q: A positive charge is being pushed by a 5.65 N/C field with a force of 65.32 N. What is the value of ...

A: Magnitude of electric field experienced by the positive charge E=5.65 N/C and force experienced by b...

Q: Justify your answer using formulas.   1.) What is the Compressible Bernoulli Equation about?

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Q: You bought a battery that is rated 9V. However, upon connecting it to some circuit, you find that th...

A: Solution Formula: P = E*I - I2r where P = power, E = EMF, I = Current, r = internal resistance  Give...

Q: bowling ball, whose radius R is 11 cm and whose mass is 7.2 kg. rolls from rest down a plank whose l...

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Q: -10.0 uC +3.0 µC Sa. +1.0 uC +7.0 µC -8.0 uC

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Q: Consider a point charge +Q, that is held fixed at (L,0). Another charge -2Q is brought from infinity...

A: The path correspond to the least work done against the electric field we have to find.

Q: What is the total power delivered by the power supply shown in the circuit below? 2 kQ - 10 V>4 kQ> ...

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Q: Consider a positive charge q located at (-d, 0), and a negative charge -g located at (0, d). What is...

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Q: to calculate the number of molecules in the gas, with some additional nformation provided. For an is...

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Q: A carousel is initially at rest. At t = 0 it is given an angular acceleration of 0.089 rad/s^2, whic...

A: Given value--- angular acceleration = 0.089 rad/s2.  initial angular speed = 0 rad /s. time = 8 sec...

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.