What is the value of the expression 1/2 (3x - 5) +5 when x= -3? A. 2 OB. 4.5 O C. -2 D. 7

Q: A keen physics student starts swimming on the south bank of a river and heads straight across. They…

A:

Q: 2.) The (net) current in a solar cell can only go in one direction. Explain which direction is…

A: Solar cell

Q: 6 The diagram below depicts an ideal monatomic gas which is compressed isobarically at p = 1.18×10…

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Q: The drawing shows three ac circuits, as shown below, each connected to entical generators Suddenly,…

A: When the frequency is doubled but its maximum voltage remains the same, the voltage across the…

Q: Human centrifuges are used to train military pilots and astronauts in preparation for high- g…

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Q: A projectile is fired in the air from a height of 125 feet. Its velocity (in feet per second) t…

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Q: Question 5 Events may seem to take longer to an observer who is in motion with respect to an event.…

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Q: A keen physics student is cliff jumping on a camping trip. They run horizontally off a 6.0 m high…

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Q: A diverging lens has a focal length of x. An object, represented by the arrow, is placed at point A…

A: To determine the position of image as shown in figure.

Q: Two 4.0 kgkg masses are 1.0 mm apart on a frictionless table. Each has 1.0 μCμC of charge.     Part…

A: in this question  we use coulomb lam electrostatic force and newton's second law.

Q: in a playground a 53.8 kg friend site 1.17 m to the left of the pivot of a see saw. calculate the…

A: Write the given values with the suitable variables. m1=53.8 kgd1=1.17 mm2=31.65 kg Here, m1, d1, and…

Q: Given that both f(x) and g(B) are odd functions and f(x) x g(x) = v(x). Check whether v(x) is an…

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Q: On a particular blender's STIR setting, the blades rotate with angular velocity 2100 rev/min. On…

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Q: A hotel builds a water (1.00 g/cm³) fountain that is fed by a din = 14.9 cm diameter cylindrical…

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Q: 2. A person with a mass of 62 kg is an elevator moving at a constant velocity of 2.3 m/s [up]. What…

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Q: While demonstrating springs, i pushed on the top of my ball point pen with a maximum force of 0.901…

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Q: A proton is moved 3.0 cm in the electric field between parallel plates. (Diagram not to scale.) -4.5…

A: Given Data, Potential difference (V)=25 V Separation between the plates (l)=4.5 cm Displacement…

Q: Initial Final object 1 object 2 combined object Object 1 has mass 17.7 kg and speed 8.9 m/s. Object…

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Q: F₂ F₁ Notation $2, F₁ = F_1 Φι X F₂=F_2 P₁ = phi_1 $2 = phi_2 Two forces act on an object, as shown…

A: Given F1 = 28 N F2 = 32 N Φ1 = 68° Φ2 = 67° We have to calculate the magnitude of the net force

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 209 m/s to the east.…

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Q: 1.0 nC A + 1 cm -1.0 nC B X 1 cm 4.0 nC C+

A: Given, charge,  qA = 1.0 nCqB = -1.0 nCqC = 4.0 nC

Q: 3. Consider a projectile motion in two dimensions. Let the muzzle velocity of the projectile be u, =…

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Q: A converging mirror has a focal length of x. An object, represented by the arrow, is placed at point…

A: We have that object is located at focus of the concave mirror.  Concave mirror : A concave mirror…

Q: Calculate the wavelength at 32m/s of a frequency of a traveling of 6 Hz.

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Q: You are renting a car to take a road trip from Ottawa to Halifax, about 1400 km. The car rental…

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Q: Find the spring constant k for a spring if a force of 19 N stretches the spring 0.46_m.

A: Given data:  Force (F) = 19 N Stretch in Spring (x) = 0.46 m Required: The spring constant (k)

Q: Consider the system shown below where four point masses are connected to each other by massless…

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Q: Part A What is the magnitude of the electric force on one proton due to the other proton? Express…

A: Distance of separation of two protons, r=7 fm The charge of a proton, q=1.60×10-19 C The mass of a…

Q: The horn of a train has a frequency of250 Hz. If the train is moving away from you at18 m/s, then…

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Q: A 8.09 kg box initially at rest on a horizontal surface is pushed by a constant force of 33.9 N that…

A: The free-body diagram of the box is shown below. Here, a is the acceleration, F is the applied…

Q: A man spends 3.2 kJ energy in displacing a body by 16 m in the direction in which he applies force…

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Q: 3. When the net force acting on an object is doubled, the effect on the acceleration of the object…

A: We know from Newton's second law of motion, The net force acting on an object of mass m moving with…

Q: 5. An object is suspended from a spring balance in an elevator. The reading is 240 N when the…

A: Given: The reading of the scale at rest is 240 N. The reading of the scale during the motion of the…

Q: Two charged particles are located on the x axis. The first is a charge +Q at x = -a. The second is…

A: The electric field being a vector quantity has direction either on positive x axis or negative x…

Q: arest whole number. No need to include the unit Work, Power, and A loaded A loaded grocery grocery…

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Q: 9 If the resistors given in the table are connected in parallel, what is the value in Cell A?…

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Q: HW10 In an engine governor of the Porter type, the upper and lower arms are 230 mm and 330 mm…

A: in this question we use simple method free body diagram equation and get answers.

Q: The springs of a 1200-kg car compress 5.1 mm when its 59-kg driver gets into the driver's seat. If…

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Q: In the middle of a spin, a figure skater halved his moment of inertia by bring his arms and leg in.…

A: The angular momentum remains conserved when no external torque acts on the body. Hence, the angular…

Q: An object placed in which region of the graph seen here would produce a virtual image?

A: Required : Correct option

Q: . Power spent by the man.

A: Given data; A man spends; Energy=2.4 kJ Dispacing a body by,h= 48 m Time,t= 1.5 secCalculate the…

Q: Given two capacitors having the same capacitance of 10F each and a total electric potential of 150…

A: You have posted multiple questions and did not mention which one to answer. According to company…

Q: 2. If the energy of the reactant is greater than the energy of the product, will the energy be…

A: The reactions are broadly classified into 2 types. They are exothermic or endothermic based on…

Q: 6. A 3160 kg elevator is supported by a steel cable. If the tension in the cable is 58600_N, then…

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Q: I Try This! Two convex lenses A and B, each of focal length 25 cm, are placed 80cm apart on the same…

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Q: b. Draw the field lines exerted by the given charges (+ - +) c. Draw the field lines exerted by the…

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Q: 25. Jupiter has an acceleration due to gravity of about 25 m/s?. Given this, what would be the…

A: Given Acceleration due to gravity on the Jupiter= g = 25 m/s2 Length of simple pendulum= L = 1.5 m…

Q: The displacement (in meters) of a particle moving in a straight line is given by the equation of…

A: Velocity and displacement.

Q: A student conducts an investigation to determine the index of refraction of an unknown transparent…

A: Given Data:- In the given figure the angles are θ1=30°, θ2=65° Required:- Refractive index of the…

Q: Spiderman uses his spider webs to save a runaway train moving about 60 km/h. His web streches a few…

A: Write the given values with the suitable variables. u=60 km/h=60×10003600 m/sx=500 mm=104 kgv=0 m/s…

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.