The astronauts in the space shuttle are apparently weightless because they are beyond the pull of gravity the forward speed of the space shuttle cancels the force of gravity they are in the vacuum of space the space shuttle is in freefall around the Earth which one is correct?

Q: 1. At what point in the trajectory of the projectile motion does the velocity of the object or…

A: 1. At the highest point of projectile the y-component of velocity is zero.  2. The Acceleration in…

Q: A block of mass m-2.50 kg is pushed df -2.70 m along a frictionless horizontal table by a constant…

A: Given, Mass of block (m)= 2.50 kg  Distance moved (d) = 2.70 m  Magnitude of force (F) = 17N…

Q: 11. You push down on a 4.0 N box against the floor for 2 minutes. How much work was done? How much…

A: The force applied, F=4 N The time for which the force is applied, t=2 min

Q: V = 85.3 V; R1 = 78 Ohms; R2 = 123 Ohms; R3 = 55 Ohms; R4 = 102 Ohms; R5 = 81 Ohms; and R6 = 162…

A: The resistors R4 and R5 are in parallel. The resistor Rp and R6 are in series.

Q: A particle starts from rest at x = -1.8 m and moves along the x-axis with the velocity history…

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Q: How much work is required to set up the four-charge configuration of the figure if q = 3.09 pC, a =…

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Q: Consider a situation where a constant force of 25 N acts on an object having a mass of 2 kg for 3…

A: Given Data: Constant Force F=25 N Mass of object M=2 kg Duration of force t=3 sec

Q: Which one of the following is NOT consistent with a car which is accelerating? O A car is moving…

A: An accelerating object must be changing its velocity by either slowing down, speeding up or changing…

Q: Consider the following three groups of point charges (each of which is very far from each othe and…

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Q: The observation deck of a tall skyscraper 350 m above the street. Determine the time required for a…

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Q: You have been hired by a "storm chaser" as an assistant. This individual loves to find locations at…

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Q: A ball is dropped from the second floor and falls. What are the signs of the ball's velocity and…

A: For a ball dropped from 2nd floor of the building, the nature of velocity and acceleration is,

Q: How much work is it to lift a 25 kg sack of cement vertically 4.3 m?

A: Given , Mass of sack of cement (m)= 25 kg  Sack of cement lifted vertically h= 4.3 m

Q: True or false-The image shows a velocity vs. time graph for a jet car. If you take the slope at any…

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Q: An accelerometer C is mounted to the side of the roller-coaster car and records a total acceleration…

A: Total acceleration =2.8g =2.8×9.81=27.468 m/s2 decreasing acceleration=28 km/hr per second…

Q: when you stand 55 meteters from a wall and clap, the sound returns ti you in 0.32 seconds. what is…

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Q: Given that copper has a resistivity of 1.7x10 m and has 8.5x108 free electrons per cubic metre,…

A: In the following problem,  Resistivity, ρ=1.7×10-8Ω Mass of the electron, m=9.1×10-31 kg Number of…

Q: disadvantages

A: The photographs taken from ground provide us with a view of the object similar to the way we see…

Q: The pressure, P, is equal to the quotient of force, F and area, A.   Which equation below represents…

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Q: Which of the following statements is not possible? © A free fall motion ended up with a downward…

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Q: A star near the visible edge of a galaxy travels in a uniform circular orbit. It is 49,600 ly…

A: Given:-  The distance between the star and the center of the galactic is d = 49600 ly [light year ]…

Q: A car with good tires on a dry road can decelerate at about 4 m/s² when braking. Suppose a car is…

A: Given data:  Acceleration (a) = -4 m/s2 Initial velocity (u) = 59 mi/h Final velocity (v) = 0 m/s…

Q: 1. Two blocks are connected by a massless rope as shown below. The mass of the block on the table is…

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Q: You solve a problem finding the acceleration of a car starting from a stop. You get a result of 5.5…

A: Approach to solving the question:We have to find the acceleration.Detailed…

Q: A block of mass m - 2.50 kg is pushed df 2.70 m along a frictionless horizontal table by a constant…

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Q: time Q2: The particle P starts from rest at point A at ti and changes its speed thereafter at a…

A: Draw the schematic diagram of the system.

Q: Data was collected for a solenoid of length 130 cm and plotted on the graph below: Magnetic Field…

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Q: Figure 9 b) What should the external magnet poles be in order for the motor in Figure 10 to spin…

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Q: and-q 3.[Single Choice] Point charges Q surrounded by a closed Gauss' surface. Find the electric…

A: Given data:  Two point charges Q and -Q surrounded by a closed Gauss' Surface Required: The electric…

Q: 8. A particle 91 = 8x10-6C is released from rest 1.50 cm from an infinite line charge (λ = 3μC/m).…

A: Given, Charge of particle , q1 = 8×10-6 C charge density of infinite line charge ,λ = 3μCm It has…

Q: A proton travels with a speed of 4.95 ✕ 106 m/s at an angle of 57° with the direction of a magnetic…

A: Given data:  Speed (v) = 4.95×106 m/s Angle (θ) = 57° Magnetic field (B) = 0.200 T Required: The…

Q: When we model light (EM radiation) as a particle, we call it a photon -- a packet of energy. How…

A: This property of light as a photon can be illustrated by photoelectric effect i.e. When a light of a…

Q: A 3.000 kg ball is pitched with a kinetic energy of 20.00 Joules. Then the momentum of the ball is A…

A: Given data:  Mass (m) = 3.000 kg Kinetic Energy (KE) = 20.00 J Required: The momentum of the ball…

Q: Look at the figure. a) Which component of magnetic field - axial (B_axial) or radial (B_radial)…

A: At the center of a circular coil, the magnetic field is in the axial direction and there is no…

Q: A violin string of length 32.8 cm that sounds the note is under a tension of 50 N and has a mass per…

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Q: 10. The electric potential of a field is V(x, y, z) = 5x²y - 8xy2. Determine the magnitude and…

A: The electric potential at a point x,y,z is Vx,y,z=5x2y-8xy2 The position vector, r→=2i^+0.4j^ m

Q: In the absence of air drag objects fall with constant speed velocity…

A: Given Air is absent Then we have to choose the correct option from given options.

Q: Algebraic manipulation. The figure shows three spaceships engaged in a celestial tug-of-war over a…

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Q: he driver of a sports car traveling at 10.0 m/s steps down hard on the accelerator for 5.0 s and the…

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Q: A 200 kg steel crate is being pulled up a steel ramp, inclined 25 degrees. The crate is attached to…

A: Consider the 200 kg crate moving down the ramp. Draw the free-body diagram of the hanging block.

Q: What are the strength and direction of the electric field at the position indicated by the dot in…

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Q: On earth, it takes 1 hr for the hand on a clock to move from 1PM to 2PM. The clock is moved to the…

A: Given value--- On earth, it takes 1 hr for the hand on a clock to move from 1PM to 2PM.…

Q: Since astronauts in orbit are apparently weightless, a clever method of measuring their masses is…

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Q: 7. A 90.0 kg man pushes on a 5.0 x 106 ton wall for 350 s but it does not move. How much work does…

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Q: A function f is given by ƒ== EX 2y where x = 7.82, y = 5.65± 0.05, z = 8.87 ± 0.03. Calculate the…

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Q: A particle moves along the x-axis. It is initially at the position of 0.270 m, moving with a…

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Q: The potential difference across the terminals of a cell is 1.5 volts. It is connected with a…

A: Given data:  Voltage (V) = 1.5 V Resistance (R) = 30 Ω Required: The current (I)

Q: 4. A point charge q₁ = 2.4x10-6C is fixed in place at the origin. A second charge q2 = -4.3x10-6C is…

A: Given value--- q1 = 2.4 × 10-6C. q2 = - 4.3 × 10-6 C. r1 = 0.15 i.  r2 = 0.25 i + 0.25 j. We have…

Q: What is the kinetic energy of the sphere when it is 4.50 cm from the line?

A: In the following problem, Charge, q1=8×10-6 C Released from the distance, r1=1.50 cm=0.0150 m Linear…

Q: A 100cd lamp emits light uniformly in all directions and is suspended 2m above the center of the…

A: When a lamp is suspended above a horizontal surface, the illumination (E) at any point below the…

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.