You are standing on the shore of a lake. You spot a tasty fish swimming some distance below the lake surface. If you want to spear the fish, you should aim the spear

Q: How can we reduce friction?

A: Friction is defined as the resistance offered by a surface on an object, when moving through it.…

Q: While neglecting air resistance, why do objects thrown upwards (in an open area) fall after reaching…

A: Since gravitational acceleration on object is always downward. So when objects thrown upwards speed…

Q: Low friction and high friction useful and not useful

A: Friction force is define as opposing force that come in picture when two surfaces come in contact…

Q: An ident vid with a broken leg h being placad in traction The patit wears uspecial boot wth a pulley…

A: Given Foot and boot mass (m) = 4.0 kg Hanging mass (M)          = 6.2 kg Angle θ…

Q: An object falls off a cliff (ignore air resistance), what remains constant?

A:

Q: If it were not for air resistance, why would it be dangerous to go outdoors on rainy days?

A: Air resistance causes the speed of the body to slow down.

Q: Centroid Practice Problems Identify the X and Y coordinates for the centroid for each of the…

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Q: Which allows you to jump the farthest? Why? Only using your ankles? Knees and ankles?…

A: The ability to jump the farthest largely depends on the joint and muscle coordination in your lower…

Q: List the merits and demerits of the converter which is used in power electronics circuits to reduce…

A: We know that Converters are used widely for their ability to reduce switching loss. Because of their…

Q: Why is it easier to start and stop a car than a train?

A: From Newton's second law a=Fm To start or stop an object, the object has to get accelerated in the…

Q: Guide Questions: 1. What are the parts of a vector? How the length of the corresponding ray is…

A: 1. A vector is a quantity which has both magnitude and direction. So parts of vector are magnitude…

Q: ) You drop your cell phone from your hand which is 1.0m above the ground. What will its speed be…

A: Given data The height from which the cell phone drops is given as s = 1 m.   The final velocity of…

Q: 5. Water is pumped to a 43 m tall water reserve tower for a small municipality at a rate of 342.0…

A:

Q: Two semi-circular wires A and B are arranged as shown in the figure. They both carry current I in…

A: We know magnetic field of circular wire is B=μ0I2rMagnetic field for half circular wire…

Q: Which is harder to stop? A train or a car traveling at

A: Question it is asked that which is more harder to stop  Train or car  Both are moving with same…

Q: Three strong magnets and an unmagnetized iron bar X are arranged in a stable configuration as shown.…

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Q: An object of mass 300g, shown in the figure like = 30 ° non-friction oblique with an angle of…

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Q: 18. It is used to demonstrate a dynamic system, a system in which two objects/bodies (two pans) are…

A: solution as

Q: Report the answers in standard units, converting if necessary, and do not include the unit in the…

A: #5 Given data: The hanging mass is m=15.000 kg. The stiffness of the spring is k=1000 N/m.

Q: The engine of a small trailer special, mass 10 tons, exerts a force parallel to its displacement and…

A:

Q: A square loop is placed in the uniform magnetic field as shown in the figure. The magnetic field…

A: As per Faraday 's law, in case of change in magnetic flux an end will be induced. This emf causes…

Q: Determine the resultant of the force system it with respect to point O. and locate 1000 200 130 FIG.…

A: Let the forces starting from the 200 lb force be denoted as Fand the corresponding angle given be θ…

Q: The figure below shows a wire coil being squeezed in a uniform magnetic field. Once the coil has…

A: Given:  Coil is squeezed :

Q: 10) Take a look at the picture below. The mass is fire up along the inclined plane. Sometime later…

A: Let initial velocity be v Therefore, the final velocity will be v4 Given angle θ is 37.1o Let the…

Q: Multiplicative Vector Lab These problems share the same set of vectors (and the same as the previous…

A: The angle (θ) between any two vectors P and Q be defined as, θ=cos-1P→.Q→P→Q→

Q: Which of the following is the correct increasing order of the speed of the color components of the…

A: As we know that the velocity (v) of light is the product of frequency (f) and wavelength (λ) of the…

Q: DATA Sor 5 -9.487 71.57 NoWar B-8.6020SofEasr EST 35.540

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Q: The figure below shows a uniform magnetic field B directed into the plane of the paper (shown by the…

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Q: Baby M is inside a room that has two flat mirrors on opposite walls. He is 1 m from the mirror on…

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Q: When jumping from a significant height, why is it advantageous to land with your knees bent?

A: Newton’s law says that rate of change in momentum is directly proportional to the force applied.…

Q: Consider the material with permittivity and permeability constants of 80 and 2μ40 respectively. The…

A:

Q: Explain in detail Why control surfaces at tails of airplanes becomes in effective at high speeds?…

A: Explanation: Control surfaces at tails of airplanes because in effective at high speeds: The…

Q: Light with wavelength 600 nm is incident in air on an interface that separates r which is air and…

A: Given  Angle of incident is theta1=60 Angle of refraction is theta 2=30

Q: You could do this if you wanted to increase friction between two objects:?

A: Frictional force comes into picture due to relative motion between  the objects in contact.