A 980-kg sports car collides into the rear end of a 2500-kgkg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.9 mm before stopping. The police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. Question: What was the speed sports car at impact? v=??

Q: Calculate the acceleration of a body of 5632 gr. when a force of 67 N is applied to it.

A:

Q: Direction: Solve as directed. Write your answers on the box provided. Find the unknown values of vol...

A:

Q: A 2.00 kg block (mass t) and a 5.00 kg block (mass 2) are connected by a light string as shown in Fi...

A:

Q: Calculate the time it takes for the ball to fall to the floor. Enter a number using the format #.## ...

A:

Q: Calculate the value of the source voltage in the circuit shown below and the equivalent resistance? ...

A:

Q: Determine the weight B, and the force in the 3 cords. Note that the system is in equilibrium. G D E ...

A: The free-body diagram of point E is shown below.

Q: Assuming that there are 1.5 free electrons per gold atom. The electrical conductivity and density fo...

A: According to question we need to find--- (a) Calculate the number of free electrons per cubic meter...

Q: A canon ball, projected  at angle of 600 above the horizontal strikes a tower 30m away at a point 15...

A:

Q: - 22.4 μC , Q-38.6 μC, and Q3 = 57.3 µC, are arranged as shown in the figure. The Three point charge...

A: Given, Q1 = 22.4 μCQ2 = -38.6 μCQ3 = 57.3 μCx = y = 50.1 cm = 0.501 m

Q: A heavy crate of mass 46.0 kg is pulled at constant speed by a dockworker who pulls with a 330-N for...

A:

Q: The oure shows the electric feld ines between two large paralel plates with charge densities a and-a...

A: The electric field lines between two equal and oppositely charged plates is as shown in the figure. ...

Q: A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected t...

A:

Q: One long wire lies along an x axis and carries a current of 54 A in the positivex direction. A secon...

A:

Q: Which is an aspect of longitudinal mechanical waves?   Group of answer choices a.they carry energy ...

A: A mechanical wave is the wave that is an oscillation of matter, and hence transfer of  energy throug...

Q: For questions 15-17: A long, straight metal wire has a radius of 5 cm and a charge per unit length (...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: rom the Atmospheric Temperature Curve, state the height and temperature ranges for the troposphere, ...

A:

Q: V is the energy (in J) required to bring the two charges from infinite distance separation to distan...

A:

Q: 18. A metal sphere of radius R is given a positive charge Q. What is the electric field at a distanc...

A:

Q: A white billiard ball moving the speed Of 25m/s in positive x axis collide with a stationary black b...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for yo...

Q: A parallel plate capacitor with a cross section of 2 cm x 6 cm. Between the two plates is filled wit...

A:

Q: The Agure shows the electric feld ines between hwo large parallel plates with charge densities o and...

A: Given data- The electric field lines between two large parallel plates with charge densities +σ and ...

Q: Police investigators, examining the scene of an accident involving two cars, measure 78-m-long skid ...

A:

Q: 1. Suppose you have a 12.0 V motorcycle battery that can move 5000 C of charge, and a 12.0 V car bat...

A:

Q: Problem 3. Acceleration due to gravity. The distance covered by a body dropped from a height d with ...

A: Dependency of acceleration 'g' with time 't' and height 'h' is : d=12gt2 Distance covered d=1.00±0.0...

Q: Hatty and Natty are in two different boats. They movedd closer to one another by pulling on a 34m - ...

A:

Q: An isotropic source creates a wave whose intensity is 4 x 10-8 W/m2 at a distance of 1.0 m from the ...

A: When a source emits the wave in all direction, The energy at a distance r from the source distribute...

Q: In the figure, point P2 is at perpendicular distance R= 25.9 cm from one end of straight wire of len...

A:

Q: It is found that the resistance of a coil of wire increases from 40 ohms at 15 degrees Celsius to 50...

A:

Q: According to the Guinness Book of Records, the anechoic chamber at Orfield Laboratories in Minneapol...

A: Write the expression for the noise reading. Here, I represents the intensity of noise and I0 repres...

Q: Q6: The bob of a simple pendulum has mass 2 g and a charge of 5.0 C. It is at rest in a uniform hori...

A:

Q: Copper wire of diameter 0.289 cm is used to connect a set of appliances at 120 V. which draw 1450 W ...

A: diameter of copper wire = 0.289 cm Radius of copper wire = 0.1445 cm V = 120 volts Total power = 145...

Q: When the dried-up seed pod of a scotch broom plant bursts open, it shoots out the seed with an initi...

A: A) Apply the second kinematic equation along the vertical direction and substitute the required valu...

Q: 2.+Under normal conditions, in which area does blood hydrostatic pressure dominate asa force, A. Bor...

A: A- 2 B- 3 4- Hydrostatic pressure 5-Hydrostatic pressure 6-Osmotic pressure 7-plasma proteins and bl...

Q: Show your work wherever possible. Record all answers with THREE DIGITS. O PROBLEMS 1 Block 1 with ma...

A:

Q: Some solar energy devices used in homes circulate air over a bed of rocks that absorb thermal energy...

A: Use principle of calorimetery and put the values to calculate energy stored. 

Q: A pumpkin has been launched from a trebuchet at the amual World Championship "Pumpkin Chunkirf compe...

A: At the time release there will be no acceleration due to initial velocity but there will be an accel...

Q: Three cells of emf 2-0 V, 1-8 V and 1-5 V are connected in series. Their internal resistances are 0-...

A:

Q: dz 2 z = xz d.x

A:

Q: railroad car having a mass of 13 Mg is coasting at 1.5 m/s on a horizontal track. At the same time, ...

A:

Q: In the figure here, a ball is thrown up onto a roof, landing 4.20 s later at height h = 20.0 m above...

A:

Q: A soccer ball is kicked from the ground with an initial speed of 18.5 m/s at an upward angle of 49.3...

A: In this question we have to find the average speed of the player so that he meets the ball before it...

Q: Data and Result Part I. Keeping the total mass constant Experimental Value of g Trial M1 M2 Time A_e...

A: Given: a_exp F 0.71 196 1.37 392 1.98 588 2.76 784 3.43 980

Q: The uniform solid block in the figure has mass 35.8 kg and edge lengths a = 0.938 m, b = 1.44 m, and...

A: The length of the body diagonal of this object is, l = √(1.442 + 0.9382) l = 1.718 m The location of...

Q: Calculate the mass of a car that drives at 21m/s and has 20000 J of energy ?

A: The kinetic energy of a body is the energy that it possesses due to its motion. E = (1/2)mv2 m = 2E/...

Q: Two resistors, R = 2.91 Q and R2 = 5.11 Q, are connected wing R| in series to a battery with an EMF ...

A: Given value--- R1 = 2.91 ohm. R2 = 5.11 ohm. E = 24 V. We have to find--- I1 ? V2 ?

Q: Identical charges A, B and C are located between two oppositely charged parallel plates, as shown in...

A:

Q: Given this equation a= 4-6t. a. Find the velocity equation at v=2m/s and t=1s b. Find displacement e...

A:

Q: You built an irrigation system for a farm lot that flows water at a rate of 0.42m^3/s. Calculate the...

A: Apply continuity equation to calculate the velocity of water when it is on ground. Q=A1v10.42=π43×0....

Q: Part A What is the maximum power consumption of a 3.0-V portable CD player that draws a maximum of 3...

A:

Q: A golfer gives a ball a maximum initial speed of 51.5 m/s What is the highest tree the ball could cl...

A:

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”