A student measures a height of 1.27m for the gun when it is positioned horizontally.  Calculate the time it will take for the ball to hit the ground when launched.

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

A: Since the Gauss’ surface surrounds both point charges, the net enclosed charge will be:

Q: Which of the following could be a position graph for an object accelerating down a frictionless…

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Q: A particle leaves the origin with an initial velocity = (7.83î) m/s and a constant acceleration à =…

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Q: 5= =S S = C4 D VB A four-capacitor circuit is charged by a battery, as shown in the figure. The…

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Q: What are the chances of being struck by lightning?

A: It is the phenomenon which causes due to the unbalance of charges in the Strome clouds in the…

Q: top 2. I throw a ball down towards the ground from the of a tall building that is 11m high. The ball…

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Q: The fan is rotated so that it is at a 30° angle to the track as seen in figure 2. Draw a free body…

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Q: A pulley and string arrangement is used to connect two objects A and B as shown in the diagram…

A: Given data: The mass of an object is mA=4.60 kg The mass of object B is mB=8.10 kg

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Q: 14. A 0.3 Kg ball is initially at rest at the top left side of a frictionless incline plane: The…

A: We know that energy of system remains conserved. The gravitational potential energy at top is 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: The fan is rotated so that it is at a 30° angle to the track as seen in figure 2. Draw a free body…

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Q: 5. If a small motor does 200 J of work to move a toy 17 m, what force does it exert?

A: This problem can be solved using work energy theorem. From work energy theorem we have, W=Fxd Where…

Q: Predict what would happen if they arrive at the same spot at the different times (also known as…

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Q: Estimate the required energy to put an airplane in motion at a cruising speed of 842 km/h, and to…

A: Write the given values with the suitable variables. v=842 km/h=842×0.2778 m/s=233.9 m/sh=35000…

Q: Computation. On earth, a block sitting on a frictionless, horizontal table accelerates at 7.13 m/s²…

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Q: = 120 ft/sec A/a 395 ft 430 ft B 40 ft

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Q: 2. If the potential is zero at a point, does the electric field have to be zero at that point?…

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Q: CONCEPTUAL EXAMPLE 22-9 Conductor with charge inside a cavity. Suppose a conductor carries a net…

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Q: A car moving at 60 km/h skids 20 m with locked brakes. How far will the car skid with locked brakes…

A: Write the given values with the suitable variables. v1=60 km/hl1=20 mv2=120 km/h Here, v1, l1, and…

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: Dae-hyun, a man of mass 72 kg, steps from a table 92 cm to the floor below. Assume that his velocity…

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Q: A ball is tossed vertically upward. When it reaches its highest point (before falling back downward)…

A: Given data:  A ball is tossed vertically upward Required: The velocity, acceleration and Force of…

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

A: Total charge Qnet=Q-q

Q: A 98-kg box, initially at rest on a frictionless surface, accelerates for 3.2 s over a distance of…

A: Distance covered, s=106 m Time,t=3.2 s Initial velocity, u =0 Then from the formula, s=ut+1/2at² Or,…

Q: The value of g (acceleration due to gravity) at some location is 980cm/s². Convert this value to…

A: Given   Value of g is   980 cm/s2

Q: a cart has a constant acceleration of a= 2m/s^2. At a certain instant, its speed is v=5m/s. what is…

A: Given data:  A car has constant acceleration a = 2 m/s2 Initial velocity (u) = 5 m/s Required: The…

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: How much charge is represented by 60,000 electrons?

A: The unit of charge is Coulomb. It is denoted by the letter C. An electron is an elementary particle.…

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

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Q: A hollow metal sphere has a potential of +380 V with respect to ground (defined to be at V = 0) and…

A: Given value--- potential = +380 V. charge = 4.40 × 10-9 C. We have to find---  Find the electric…

Q: During a baseball game, a baseball is struck, at ground level, by a batter. The ball leaves the…

A: Given data:  Initial velocity (v0) = 41.7 m/s Angle (θ) = 40.5°,above the horizontal Required: The…

Q: For a simple pendulum, the restoring "force" is the torque due to gravity, mgL. Here m is the mass…

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Q: The three diagrams below show a block of mass m being pulled or pushed at constant velocity along a…

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Q: 4. Which of the following statements about Blackbody Radiation is true?

A: 3. Correct option (A) - Yes ,this statement is correct

Q: A car accelerates at 4 m/s2 for 3 seconds. The direction of its acceleration is due west. If its…

A: Given data:  Acceleration (a) = -4 m/s2 Time (t) = 3 s Initial velocity (u) = +45 m/s Initial…

Q: We can model a tightly packed solenoid as a tube having a current density J(r) = (a/s²) between an…

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Q: The value of g (acceleration due to gravity) at some location is 980cm/s². Convert this value to…

A: Given Data, Acceleration due to gravity is (g)=980 cm/s2

Q: (a) How much work is done when you push a crate horizontally with 150 N across a 20 m school floor?…

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Q: A projectile is launched from point A with speed vo= 38 m/s. Determine the value of the launch angle…

A: *Z

Q: 9. In a total time of 2.0 min, a duck on a pond paddles 22 m [E36°N] and then paddles another 65 m…

A: Given:-  The Total time to travel a duck is t = 2 min  The duck travel a first distance d1 = 22 m…

Q: A steel wire of length 2.08 m with circular cross section must stretch no more than 0.200 cm when a…

A: Given data, Force F=380 N Length L0=2.08 m Young's modulus Y=2×1011 Pa Change in length ∆L=0.2×10-2…

Q: A box is given a push so that it slides across the floor. Part A How far will it go, given that the…

A: Given, Box is given a push so that it slides across the floor . Coefficient of kinetic friction…

Q: In the figure what is the net electric potential at point P due to the four particles if V = 0 at…

A: Given Data: Magnitude of charge q=7.15 fC=7.15×10-15 C Distance of Point P from the charge d=1.83…

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: Find the net force, including direction: a. 265 N to the left, 85 N to the right b. 190 lb to the…

A: Given data:  Two forces F1 = 265 N, to the left F2 = 85 N, to the right Required: The net force…

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: This graph shows the motion of an object (displacement in m on y-axis and time in s on x-axis). What…

A: In the given figure, the wave is a triangular wave. which describe the motion of an object.   since…

Q: Two metal spheres, each of radius 2.6 cm, have a center-to-center separation of 2.8 m. Sphere 1 has…

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Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.