Training is over, and the zombie apocalypse is upon us. You are at the top of a 50-m-high hill. A zombie horde is amassing at the bottom of the hill. You release the brakes on a 4500-kg car parked at the top of the hill to send it driving in to the horde. If the zombies are packed in tight and provide a resistive ”frictional force” of 8 × 104 N, how far does the car make it through the horde before coming to a stop?

Q: Determine the induced emf around a small circle of brain tissue of radius 1.2×10^−3m. The B⃗ B→ fiel...

A: Expression for induced emf -  εin=NA∆Bcosθ∆t.....(1) Given values -  Initial magnetic field=Bi =0.64...

Q: A 4.00 kg mass (mass 1) moves to the right with a speed of 3.00 m/s and collides with a 2.50 kg mass...

A: Given data The mass of the first object is m1 = 4 kg. The initial speed of the first object in the r...

Q: What is the Energy, in eV, of a light wave with frequency of 6 * 10^15 Hz?

A: Energy  E=hf=4.135667696×10-15 eV Hz-16×1015 Hz=24.8 eV

Q: 3. The London Eye Ferris wheel in London, England (duh), has a diameter of 120 m. While the ride is ...

A: Given: Diameter, D=120 m Radius, R = 60 m Passenger weighs, mg = 945 N

Q: Question is in the below image

A: Trajectory Equation is given by,      y=xtanθ-12gx2ucosθ2⇒4 m=16 m×tan37°-129.8 ms-2×(16 m)2ucos37°2...

Q: A student stands on the edge of a merry-go-round which rotates eight times a minute and has a radius...

A: radius, R = 2 m  eight times in a minute  frequency = 8 rpm 

Q: A 70 kg person on a merry go round is spinning with speed 5 m/s. If they experience a centripetal fo...

A: Centripetal force Fc=mv2rr=mv2Fc

Q: 63. Three point masses are placed at the corners of a triangle as shown in the figure below. 75 g 3 ...

A:

Q: An object moving vertically is at the given heights at the specified times. Find the position equati...

A: At t = 1 s and s = 193 ft, equation becomes as follows: 193=12a12+v∘1+s∘193=a2+v∘+s∘                ...

Q: You shoot a basketball upward with a velocity of 8m/s from a height of 1m.If your height is 1.8m, fo...

A:

Q: A man in a glider leaped off a cliff with an initial velocity of 3.45 m/s. He landed on the ground b...

A: initial horizontal speed = 3.45 m/s horizontal distance = 450 m   A) Using equation of motion in ho...

Q: Suppose that a rocket is fired at an angle of 5degree from the vertical with an initial speed of 100...

A: (a) The motion of the rocket is a projectile motion and the expression for the time of flight can be...

Q: Find the area of a rectangular plate having length (21.3+-0.2)cm and width (9.80+-0.10)cm

A: Given : Length of a rectangular plate (L) = (21.3±0.2) cm Width of rectangular plate (W) = (9.80±0.1...

Q: A block is pushed onto a frictionless surface of inclination 30 ° by applying a force as shown in th...

A: Given: The mass of the block is 3.0 kg. The angle of inclination is 30°. The force on the block is 2...

Q: please help with all parts, show work and please at the end list the answers to all parts.

A: Given data *The given frequency is f = 61.4 kHz *The given rms strength of the magnetic field is Brm...

Q: If the air temperature isthe same as the temperature of your skin (about 30°C), your body cannotget ...

A: Given, Temperature, T1=300 C, Mass, m=70 kg, Heat, Lv=2.42×106 J/kg, Energy, E=500 W, and time t=1 h...

Q: I have tried 9.81 and 9.82 but says its wrong.

A: Given: Time period of pendulum in one location is 2.0000 s. Acceleration due to gravity is 9.80 m/s2...

Q: Consider a uniform solid sphere of radius R and mass M rolling without slipping. Which form of its k...

A: The translational kinetic energy of the sphere rolling without slipping can be expressed as; Ktrans=...

Q: Q6) In the Figure below, determine the point (other than infinity) at which the electric field is ze...

A: Given: The magnitude of the charge q1 = -2.5 x 10-6 C The magnitude of the charge q2 = 6.0 x 10-6 C ...

Q: To keep the forces on the riders within allowable limits, many loop-the-loop roller coaster rides ar...

A: The normal force acting on the rider of mass m at the bottom of the circular loop of roller coaster ...

Q: . For an airplane to be able to fly clockwise in a horizontal circle seen from above, in addition to...

A: When a body performs a circular motion, it exerts a force towards center called centripetal force. C...

Q: A copper ring and a gold ring of the same dimensions are placed in magnetic fields so that there is ...

A:  

Q: 3. A projectile at ground level is fired at an angle e (0 degrees <e< 90 degrees) from the horizonta...

A: Scenario: When projectile is projected with an initial velocity and certain angle, it will have the ...

Q: (a) What is the best coefficient of performance for a refrigerator that cools an environment at -30....

A: Part (a) Given: The temperature that transfer the heat is T1=45 C. The temperature that cools the e...

Q: What is the net torque on the beam shown in the figure about an axis through C perpendicular to the ...

A:

Q: Please solve parts (a)-(c).

A: GIVEN : Frequency =1.0 kHz R=20ΩL=4.0 mHC=50μF V=100 V (a) RMS CURRENT : Irms=VrmsZ where Z is imped...

Q: A voltmeter is marked 100ohms per volt and another voltmeter is marked 1000ohms per volt. which will...

A: Voltmeter which offers maximum possible resistance in order to have minimum effect on the voltage be...

Q: You have just landed on Planet X. You release a 100 g ball from rest from a height of 10.0 m and mea...

A: The kinematic expression to find the gravitational acceleration of the planet X is     h=12gt2⇒g=2ht...

Q: The half-life of Oxygen-21 is 3.42 seconds.   After roughly 13 seconds have passed, what fraction, i...

A:

Q: Calculate the ratio of electron to lattice heat capacities for Cu at T=0.3o, 4o,20o,77o and 300o K. ...

A:

Q: Need help for he two questions

A: a) The moment of inertial of the flywheel (assuming uniform disk). I=12mR2=12631.5 kg1.3 m2=533.6 kg...

Q: Where, in cm, does an image form in front of convex mirror with a focal length of -25 cm when you st...

A: Given data *The given focal length is f = -25 cm *The distance is u = 10 cm

Q: A concave lens has a focal length of -20 cm.  If an object is placed 50 cm in front of the lens, wha...

A: Given data The focal length of the object is, f=-20 cm The position of the object is u=50 cm The len...

Q: 2. A gas occupies 1.98 L at 200.3 kPa. What will be the volume of this gas if the pressure becomes 3...

A: Given: Gas at the pressure P1 occupies a volume V1 = 1.98 L Gas occupies a volume V1 at the pressure...

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: