At a certain instant, train A is 60 km north of train B. A is travelling south at a rate of 20 km/hr while B is travelling east at 30 km/hr. How fast is the distance between them changing 1 hour later? A. 2 km/hr B. 4 km/hr C. 3 km/hr D. 5 km/hr

Q: A ball is kicked at an angle 370 with a velocity of 20 m/s. Given the initial velocity component,…

A:

Q: A car covers a distance of 160 km between two cities in 4 h. What is the average speed of the car ?

A: Write the expression for the average speed. Here, d represents the total distance and t represents…

Q: A bus covers a distance of 180 km b/w two cities in 5 hr. What is the average speed of the bus?

A: Given: The distance cover between the two cities is 180 km Time taken is 5 hr To Find: Average speed

Q: Using Kirchhoff's Law, find the current through the 30 Ω resistor. 30.0 10.0 V Ω J 20.0 Ω 5.00 V

A:

Q: iv-ionization coefficients a, y are function of a-applied voltage b-pressure and temperature…

A: iv) (d) ratio of electric field to pressure. Townsend's Coefficients. v) (b) Kdn Breakdown voltage…

Q: if radius of manganese ion is 66ppm nd fluoride ion is 134 ppm then what is the shortest distance…

A: Solids are arranged in a order in the whole volume. The order can be regular (crystalline). It can…

Q: 18 Which combination of objects has the strongest gravitational attraction force? A. 10 kg 5 m ← 5…

A:

Q: Two different samples have the same mass and temperature. Equal quantities of energy are absorbed as…

A:

Q: Question 17 Solve for the current that is flowing through Resistor one www R₁=200 10V ww R₂=500 www…

A: Given: The supply voltage is 10 V. R1=20 ΩR2=50 ΩR3=50 ΩR4=20 Ω

Q: 9. The permanent electric dipole moment of the water molecule (H₂O) is 6.2 x 10-30 C.m. What is the…

A: electric dipole moment of water molecule (p) = 6.2×10-30 C.m electric field (E) = 121.3 Vm

Q: What would happen to the drift velocity of electrons in a wire if the resistance due to collisions…

A:

Q: 1.33 kg of ice at 0.00 °C is added to a tub of water at 20.0 °C. If the final temperature, Tf, is…

A:

Q: What is the total current through the battery? A 0.75 A B 3.0 A 1.54 0.33 Α Μ ΤΩ ΤΩ Μ 2Ω :

A: Required:- Current through the battery.   Concept:- First of all we will calculate equivalent…

Q: A bus covers a distance of 170 km b/w two cities in 5 hr. What is the average speed of the bus?

A:

Q: How many fahrenheit are 100 K?

A:

Q: Two 100-ohm resistors are connected in parallel. If the current in one of the resistors is 0.01 A,…

A:

Q: A charge of 1420 C was passed through a wire in 7 minutes. Calculate the average electric current…

A: Given data:  Charge (Q) = 1420 C Time (t) = 7 minutes Required: The current (I)

Q: Three-identical point charges +q are placed at each of the three corners of rectangle whose length…

A:

Q: A 5-kg package is pushed 2 m up a ramp that is inclined at 12o above the horizontal by a 100-N force…

A:

Q: 48. You are working with the formula V = ²h. You are given values of r= 1.00 ft and h = 2.00 ft.…

A: Detailed solution of given question is given in below steps.

Q: 4. 3. In the circuit in Figure, the value of 'V' is a) - 10 V b) 10 V c) 6 V d) - 6 V In the circuit…

A: According to kirchhoff's voltage law Total voltage in the circuit is zero Vi = 0 i starts from 1 to…

Q: about Uranus. (c) Calculate the acceleration due to Miranda's gravity at the surface of Miranda.…

A:

Q: 5. m/s 15 kg Blue car moves from left to right at 5.0 m/s. Brown car is motionless. The masses of…

A: Given data: The mass of blue car is m1=10 kg. The mass of brown car is m2=15 kg. The velocity of…

Q: What is the acceleration produced by a force of 290 N exerted on an object of mass 30 kg.

A:

Q: 2. Then show that the spacing Ay between adjacent bright fringes appearing on the screen a distance…

A:

Q: A material made with iron heated from 20 C to 90 C. The final length of iron is 115 cm after heated…

A:

Q: A football weighing 5 N is dropped from a height of 7.6 m above the ground. What is the kinetic…

A:

Q: es ww R₁-2002 10V- ww R₁-200 Solve for total current that is flowing through the circuit shown 154…

A:

Q: 8₂V= 3 m/s m=3.3kg Find Kinetic energy.

A: Given data : Mass is denoted by m Velocity is denoted by V   Required : Kinetic energy

Q: Consider the circuit shown below. Calculate the equivalent resistance at terminal AB when; (a) S1 is…

A:

Q: Another published set of refractive indices for the eye components has ncornea = 1.376, naqueous =…

A:

Q: Why does an object float in a liquid and explain what are the forces acting on the object and why it…

A: When an object is placed in a liquid, it will either float or sink. There are different forces…

Q: is hit over a time interval of 3 ms by a driver. The ball leaves with a velocity of 35 m/s at an…

A: GivenMass of Golf ball, m=40 g=40×10-3 kgTime interval, ∆t=3 ms=3×10-3 sInitial velocity, u=35…

Q: 3 h (8%) Froblem 10: A diver explores a shallow reef off the coast of Belize. She initially swims d…

A:

Q: Find Density of object of mass 20 kg which accupies space of 0.8 m³

A: Mass of object(m) = 20 kg volume occupied(V) = 0.8 m3

Q: An electric field E causes the ball with charge q, and with mass m to hang at som angle 9. What is…

A:

Q: An object 3.4 mm tall is placed 25 cm from the vertex of a convex spherical mirror. The radius of…

A: Given that- Convex sperical mirror Object height(h)=3.4mm=0.34cm Object distance(u)=-25 cm radius of…

Q: Large helium-filled balloons are used to lift scientific equipment to high altitudes. (a) What is…

A:

Q: A crate of mass 10.0 kg is pulled up a rough 200- incline. The pulling force is 100 N parallel to…

A:

Q: Consider the circuit shown below. Find: a) The equivalent resistance. b) The current along each…

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

Q: An electric kettle is rated at 1300 W (average power) at 110 V (rms voltage). The rms current is:…

A:

Q: 10. If a car is slowing down, what happens to the acceleration? it stays the same it has no…

A: Given: The car is slowing down Asked: About the acceleration of the car.

Q: A ball with a mass of 2000 g is floating on the surface of a pool of water. What is the minimum…

A:

Q: You are driving at a constant speed of 45.0 m/s when you pass a police officer on a motorcycle…

A: Motion perpendicular are independent of each other. Motion can be uniform or accelerated. Motion is…

Q: speed during its motion? [(a) 5.48 x 10¹ J, 7. A particle moves in simple harmonic motion according…

A:

Q: Find the height to be raised P.E=2442.11 J Mass=23 kg

A:

Q: A 5-kg package is pushed 2 m up a ramp that is inclined at 120 above the horizontal by a 100-N force…

A:

Q: What is the critical angle ic at the interface glass-cladding of an optical fiber whose core has a…

A:

Q: What is the acceleration produced by a force of 290 N exerted on an object of mass 30 kg.

A: Given data :                          Force    =    F                          Mass     =    m…

Q: A child applies a push on his toy car causing it to move horizontally. He controls his applied push…

A: