A certain string just breaks when it is under 25 N of tension. A boy uses this string to whirl a 2 kg stone in a horizontal circle of radius 3 m. The boy continuously increases the speed of the stone. At approximately what speed will the string break

Q: Two identical springs, both of force constant k=200 N/m, are fixed at opposite ends of a level…

A:

Q: A wire 2.80 m in length carries a current of 6.20 A in a region where a uniform magnetic field has a…

A: Given: Current I = 6.20 A            Magnitude of magnetic force B = 0.290 T            Length of…

Q: 4 m 6 kg 10 kg Two masses of mass 10.0 kg and 6.0 kg are hung from massless strings at the end of a…

A:

Q: How to find the electric field of a parallel-plate capacitor Please write out the formula

A:

Q: ket lands 65 m kofficiency of

A:

Q: answer is given on the bottom side of the image, just show the solution on how to get it.

A:

Q: 9. A car with its brakes applied has an acceleration of -1.2 m/s˄2. If its initial velocity is 10…

A: Letter of correct answer - 9. Option (C) 35m is correct answer. 12. Option (B) 0.0206 m/s2 is…

Q: 3. Two point charges, q1 = +5.00 nC and q2 = -3.00 nC, are separated by 35.0 cm. (a) What is the…

A: The electric potential at a pint midway between the chargesis  V = [KQ1/r ]+[KQ2/r] where K =…

Q: hed equation for

A:

Q: How much time does it take to cover the distance ?

A: Given data;  Truck travels distance of;   350 km  Average speed of 50 km_hr Determine time it take…

Q: Mystery element X has the electron energy levels shown in the figure below, in which E₁ = -9.1 eV,…

A:

Q: Which of the following best approximates the velocity of the ball at point B just after impact with…

A:

Q: What will be the weight of a boy of mass

A: Given data;  Body mass;   ⇒ 6 kg= 60 N What will be the weight of a boy of mass 65 kg  a. jgf  b. N

Q: # the momentem of a flying brick and and its mass is 15ky k Edlculats " ). Is velocity? its ку

A: Given , Momentum of flying brick (P)= 70kgm/s  Mass of brick (m)= 15 kg

Q: 1. What is the magnitude of the electric force of attraction between an iron nucleus (q = +26e) and…

A: Given, Distance between innermost electron r=1.5×10-12 m   Write the expression of electric force:…

Q: Car A has a mass of 1000 kg and a speed of 30 m/s. Car B has a mass of 2000 kg and a speed of 15…

A: We know thatK.E=12mV2HereK.E=Kinetic energym=mass of objectV=speed of object

Q: 2) Find total the RT of the resistance, following resistors connected in a parallel network. AO R₁…

A: The combination of resistors is shown below.

Q: 110ohms W 180ohms 24v What is the total current? 0.16A O 0.12A O 0.14A O 0.10A w +00 220ohms 250ohms

A:

Q: Question 14 » Pause Q Zoom Question 14 A 9.00 kg object is dropped from rest near the surface of an…

A: Given  Mass of the object (m) = 9 kg  Since, acceleration near the surface of planet is    6 m/s2  ,…

Q: A red train traveling at 72 miles/hour (mph) and a green train traveling at 100 mph are headed…

A:

Q: A particle starts from rest and travels along a straight line with a velocity of v = (t2 − 4t + 3)…

A:

Q: A tennis ball is launched from ground level at an angle of 50 degrees. The tennis ball stays in the…

A:

Q: de

A:

Q: these quantities

A: solution of above problem is below:

Q: A cat is playing in the backyard of his owner's place. It can be seen moving back and forth, such…

A:

Q: A red train traveling at 72 miles/hour (mph) and a green train traveling at 100 mph are headed…

A: Given information: The speed of the red train (Vr) = 72 mph we know that:1 mile = 1609 m1 mile/hr =…

Q: Find the average speed of the cyclist in

A: Given data;  A cyclist travels distance of;   1 km in first hour 0.5 km in the second hour and 0.3…

Q: Weight of a body mass 6.0 kg is 60 N. What will be the weight of a boy of mass 65 kg. (a) kgf (b) N

A: Given: The weight of the 6 kg mass is 60 N. The other mass is 65 kg.

Q: What vector subtracted from 100km North give 200 km North 60 degrees East?

A:

Q: E= -V¢ where is the electric potential. One of Maxwell's Equations for EM is VE=where p is the…

A: We have E→=-∇ϕ∇→·E→=ρε0

Q: Two carts in a physics lab roll on a level track, with negligible friction. These carts have small…

A: Mass of the first cart, m1=675 g The velocity of the first cart, v1=6.5 m/s ( we take velocity is…

Q: A cyclist travels a distance of 1 km in the first hour, 0.5 km in the second hour and 0.3 km in the…

A: Given In first hour= 1 km distance In second hour,=0.5 km distance In third hour=0.3 km distance

Q: An object, starting from rest, moves with constant acceleration of 4 m/s2. After 8 s, its speed is…

A: Given: The intial speed of the object is 0 m/s. The acceleration of the object is 4 m/s2 (…

Q: 7. How much force is needed to pull a spring with a spring constant of 16 N/m a distance of 30 cm?

A:

Q: motorboat is crossing a river that flows eastward at a speed of 5 kph. If the boat needs to maintain…

A: Given:- The speed of the river in the east direction is v→r= 5i^ km/h The speed of the boat in the…

Q: A 620-g object traveling at 2.1 m/s collides head-on with a 320-g object traveling in the opposite…

A: Given: The mass of the first object is 620 g. The initial velocity of the first object is 2.1 m/.s…

Q: If an object falls downward, its acceleration and velocity?

A:

Q: What is the current (in amperes) drawn by an 840 W toaster attached to a 120 V outlet?

A: Given that            The power of the toaster is (P) = 840W            The voltage (V) = 120V We…

Q: A crate of mass 95.6 kg is pushed along a floor with a force of 30 N for a distance of 18.5 m.…

A: Given data :                    Force    =    F                   Distance    =    d         To find…

Q: A block of Jell-O is resting on a plate The Jell-O stands 0,03 m tall and in the shape of a square…

A:

Q: What is the magnitude of the resultant vector of the three vectors below: A = 3i + 5j B = 4j + 2i…

A:

Q: A ball has a mass of 2.0kg. The ball approaches a wall at a speed of 3.0Mls and rebounds at a speed…

A: Given:-  The mass of the ball is m = 2.0 kg  The ball approaches a wall is u = 3.0 m/s  The rebounce…

Q: Light with a wavelength of 574 nm passes through two slits and forms an interference pattern on a…

A:

Q: A body does 22 Joules of work in 5 seconds. Calculate the power ?

A: Given data:  Work (W) = 22 J Time (t) = 5 s Required: Power (P)

Q: A ball of 0.1 kg is dropped from rest. When it falls through a distance of 2 m, the work done by the…

A:

Q: A golf ball is hit from the fairway (ground level). The golf ball is hit at a 57 degree angle and…

A:

Q: Potential difference between two points of a wire carrying 32 amperes Current is 3.5 volt.Find the…

A: Given Current in a wire = 32 A Potential difference between two points = 3.5 V We have to calculate…

Q: 1. Two objects 01 and O2 have charges +1.0μ and -2.0μC, respectively, and third object 03, is…

A:

Q: I 1 25 V ov 75 V 50 V 1

A: The relation between the electric potential (V) and electric field (E) is given by…

Q: Work is energy transfer. When work is positive A. energy is transferred to the surrounding. B.…

A: When work is positive then energy is transferred from surrounding to the system as per first law of…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!