1. The dog runs across the backyard lot on which a set of coordinates axes has, strangely  observed, been drawn. The coordinates of the dog’s position as functions of time t are given  by  X = -0.35?2 + 7.5t +30  and  Y = 0.25?2 – 9.5t + 26. With t in seconds and x and y in meters. (a) At t =15.0s, what is the dogs position vector ? in unit – vector notation and as magnitude  and an angle.

Q: Situation 04. The acceleration of a particle is given by a = 3t – 2. a. Find the initial velocity su...

A: Given: a=3t-2

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Q: 1. A wave is modeled with the function y(x, t) = (0.25m)cos (0.30 m-1x – 0.90 s-lt + 5 Find the (a) ...

A: Given A wave is modeled with the function yx,t = (0.25 m) cos 0.30 m-1x -0.90s-1t + π3

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Q: The 800 kN-crate is in contact with a 45- degree inclined plane. The coefficient of static friction ...

A: GivenW=800 kNμ=0.25Angle ,θ=45°

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Q: 6. A resistor with a resistance of 10 ohms is connected in series with a capacitor of 50 microFarad ...

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Q: 12) An insect athelete can ju mp straight up 0.5 meters. A larger insect can jump straight up 1.0 M....

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Q: An object with mass m is suspended at rest from a spring with a spring constant of 200 N/m. The leng...

A: The given data   The spring constant k = 200 N/m The initial length of the spring X1 = 5 cm [ unstre...

Q: A boat travels a distance of 220m (E 40° N] and then rounds a buoy (turning point) and travels a dis...

A: Solution: first distance of 220m (E 40° N]  second a distance of 360m [N 30° W] t= 22 s

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Q: Carlos is diving 11.0 m below the sea surface (p = 1.027x10 3 kg/m3), find the total pressure that C...

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Q: 4-21. In order to pull out the nail at B, the force F exerted on the handle of the hammer must produ...

A: Given that:- Torque at point A due to force F=500lb.in

Q: Q2: Determine the magnitude and direction of the friction force which the inclined plane exerts on t...

A: mass of block (m) = 25 kg applied force (F) = 300 N angle of incline (θ) = 25oAngle of applied force...

Q: In an MRI, the magnetic field B is generated by a solenoid of length 100 cm and diameter of 90 cm.  ...

A:

Q: 1. An object B is moving at a speed of 12m/s and is struck by object A which is moving at a speed of...

A: Given that:- Mass of object A=14 tons  Mass of object B=10 tons  

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A: Given that:- Electric field due charges wire=543kN/C

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Q: an MRI, the magnetic field B is generated by a solenoid of length 100 cm and diameter of 90 cm.  The...

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Q: B

A:

Q: What is Marie Curie most famous for

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Q: A room has dimensions 2.18 m (height) x 4.60 mx 6.62 m. A fly starting at one corner flies around, e...

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Q: A projectile is launched horizontally from a high cliff on a planet where g=6 m/s2 and lands on the ...

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Q: ) An object initial velocity > lachcled touards He east with an <い angle of 30 abor 4 u OS to groond...

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Q: An ion channel in a cell membrane carries 2.4 pA when it's open, which is only 20% of the time. (a) ...

A: Solution of part A   The average current is given by Iavr = 2.4×10-12×20100Iavr = 0.48×10-12 AIavr =...

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Q: Given the vector: Ã = (5.6t²)î + (-7.1t)j+ (8.7t)k Find the magnitude of: d²A for t = 2. dt

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Q: A circuit consisting of three ideal batteries with voltages 81, 81 82, and 83, and three ideal resis...

A: Given:ε1=23.5 Vε2=10.5 Vε3= 30.0 VR1= 1.20 kΩR2= 14.0 kΩR3= 6.25 kΩ Let the Current I1 passes upwar...

Q: A cylindrical resistor of radius 3.0 mm and a length of 3.0 cm has a resistivity of 2.6 x 10-3 Ωm. I...

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Q: B)U (zero) iv. The magnitude of the vector product of two a) greater than AB c) less than AB

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Q: walking down a road when he observes a nearby mountain that a boulder is falling, he notices that it...

A: Let  Total height = h  Distance covered in last 1.3 sec = h/3 

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Q: 7. In an AC circuit there are two devices connected in series. If the current in the circuit and the...

A: Total current in the circuit (I) = 2 Sin(2000t + 1.801) Ampere Total voltage in the circuit (V) = 10...

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Q: Assume that the pressure difference above and below the wing of an airplane in flight is 1.6x10^3 Pa...

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Q: Question 2 The transformer used to filter out fluctuations in electrical current is: O The autotrans...

A: SOLUTION : Correct answer is The step-up transformer . Correct Answer Explanation : The Step-up tra...

Q: The acceleration of a particle is given by a=3t-2. Find the initial velocity such that the particle ...

A: we have following data as given in question a(t) = 3t - 2 to find the expression of velocity functio...

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Q: Billy Joe pulled a large block of wood is across a frozen lake at a constant velocity. The block's m...

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Q: car speeding at 120 kph hits a stationary car at the side of the road. Assuming both cars has the sa...

A: Given, initially the car is moving with velocity, v = 120 kph = 33.33 ms mass of the car, m1 = m2 = ...

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Q: The velocity v of a particle moving in the xy plane is given by = ( 5.50 r- 5.00 r)i + 9.00 j,with V...

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Q: A water jet consumes 3150 W for 126 hours a week. what is the energy consumed (kWh) for one-year pe...

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Q: A ball of mass m is thrown from ground level with initial horizontal velocity component Vox and init...

A: Given: Mass of a ball is m. Initial horizontal velocity component is v0x Initial vertical velocity c...

Q: What is an electric potential? 2 Why should you ground electrical system at home? 3 What is work d...

A: Electric potential is negative gradient of electric potential. E = -dV/dx

Q: A wire 0.9 m long carrying a current of 2.1 A is at right angles to a 1.0 T magnetic field. How stro...

A: Given data:  Wire length (L) = 0.9 m Current (I) = 2.1 A Angle (θ) = 90° Magnetic field (B) = 1.0 T ...

Scalars and Vectors

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