spelunker is surveying a cave. She follows a pas- sage 180 m straight west, then 210 m in a direction 45° east of south, and then 280 m at 30° east of north. After a fourth unmeasured displacement, she finds herself back where she started. Determine the magnitude and direction

Q: If a bus traveling at 21 m/s is subjected to a steady deceleration of 3 m/s? .How long will it take…

A: Write the given values with the suitable variables. u=21 m/sa=-3 m/s2v=0 m/s Here, u is the initial…

Q: spaceship is approaching Earth approximately 0.8c measured relative to you. How fast is it moving as…

A:

Q: The normal force is always perpendicular to the surface. True False

A: As per Newton's third law, for every action force, there is a reaction force.

Q: If an electron has an uncertainty in its velocity of 4.10 m/s, what is the uncertainty (in meters)…

A:

Q: A car is moving on a straight road 16 m/s. It is acceleration at 24 m/s? . What will be it's…

A: Given data :        Acceleration   =   a         Initial velocity   =   u            Time    =    t…

Q: Select the reaction forces in a fixed support. Horizontal Reaction Vertical Reaction Moment Reaction

A: Type of support: Fixed support

Q: If a bus traveling at 21 m/s is subjected to a steady deceleration of 3 m/s? .How long will it take…

A: Given data:  Initial velocity (Vi) = 21 m/s Acceleration (a) = -3 m/s2 Final velocity (Vf) = 0 m/s,…

Q: Three charges are positioned at the corners of a parallelogram as shown above right. (a) If Q = 8.0…

A:

Q: two cyclists are traveling down the road on identical bicycles. one is going twice the speed of the…

A: Given: two cyclists are traveling down the road on identical bicycles. one is going twice the speed…

Q: 1. Power is how strong someone or something is. C. how much work is being done, how much force is…

A: Power is  Let's check each option one by one A. How strong someone or something is Incorrect option…

Q: 1. When two hockey pucks slide and collide on ice, they follow the formulas of momentum and energy…

A: Conservation of energy is a physical principle that states that the energy of interacting bodies or…

Q: What is the force exerted on a 3.5 m length of wire carrying 6.0 A of current through a magnetic…

A: GIVEN Length of wire = 3.5 m Current passing through the wire = 6.0 A  Magnitude of the magnetic…

Q: A crate of mass 40 kg is pushed along a floor with a force of 20 N for a distance of 10 m.Calculate…

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

Q: An automobile engine takes in 3,000 J of heat and performs 1,400 J of mechanical work in each cycle.…

A:

Q: Impulse and Momentum Problem Solving 28. A runner with a mass of 75 kg is dashing at a speed of 7.5…

A: Incase of inelastic collision final velocity. V=(m1v1+m2v2)/(m1+m2). Since v2=0 m/s. m1=75kg m2=95kg…

Q: V= 120 Rq= 92 %3D Ry =152 Re = 2 R3: 8 Rs =82 R5= ww

A:

Q: What is the Earth's angular velocity as it spins around its rotation axis once every 23 hours, 56…

A:

Q: As shown in figure, find that at what distance body A will attain a velocity of 3 m/s when starts…

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Q: After your school's team wins the regional championship, students go to the dorm roof and start…

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Q: 4. For approximately the same maximum voltage, what happened to the maximum current resistors added…

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Q: A small airplane is flying due north at 150 km/h when it encounters a wind of 80 km/h from the east.…

A: 1)Given , Speed of airplane with respect to ground is 150km/h (due north) Speed of wind with respect…

Q: m under a force of 600 N. What is the spring constant f

A: Given:-  The spring force F = 600 N  The spring compressed within a distance x = 0.4 m  Find:-…

Q: Problem 11. In an adiabatic (Q = 0) compression the volume of an ideal gas decreases. During this…

A: Correct answer is (a) i.e. temperature of the gas increases

Q: Select all the field forces. O Tension O Frictional Air resistance Electrical Magnetic O Applied O…

A: Field forces:

Q: 3. One watt is equivalent to one (1) N•m (2) N/m (3) J•s (4) J/s

A: 'Watt' is the unit of power. Power is defined as energy per unit of time.                    Power…

Q: From a starting point, you started walking 3 kms west then 4kms north. What is your displacement?

A:

Q: A child, sitting in the backseat of a car travelling at 20 m/s throws a ball at 2 m/s to her brother…

A: The child is sitting in the car travelling with velocity vcar=20 m/s The velocity of the ball is…

Q: A horizontal rectangular surface has dimensions 2.80 cm by 3.20 cm and is in a uniform magnetic…

A:

Q: Find the value of potential energy stored in ball mass of ball=2.2 kg h=4 m g=10 m/s2

A:

Q: Two 2.4 g point charges on 1.0-m-long threads repel each other after being equally charged, as shown…

A: Given:-  The mass of the point charge is m = 4 g  The length of the threads L = 1.0 m  We have given…

Q: Find the compoent of gravity down the slope in the diagram. 20 kg 40

A: Given Data: The mass of the slope is: m=20 kg The angle of slope is: θ=40°

Q: Finding the value of kinetic energy of car of mass 42 kg moving with velocity 20 m/s

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

Q: A boll rounds a 14 m radius curve at 9 m/s. The magnitude of it's acceleration in m/s2

A: Given data :                Speed    =    V                Radius    =     R        To find :…

Q: A student weighs 520 N on planet Earth. What is the weight of the student on the Moon, if the…

A: On planet Earth the weight of the student, W= 520 N The gravitational field intensity near the…

Q: has been hidden behind a blue curtain, but you been given 3 lights (dashed lines) rays used to…

A: A lens has been hidden behind a blue curtain, but you been given 3 lights (dashed lines) rays used…

Q: 3. An airplane with an airspeed of 80 meters per second is due east, gaining altitude, and has a…

A:

Q: If you are running 10km/h, how far will you run after 2 hrs?

A:

Q: Starting with the definition 1 in. = 2.54 cm, find the number of (a) kilometers in 1.0 mile and (b)…

A: Data we have 1 in=2.54cm=2.54×10-2m

Q: An explosion occurs at the end of a pier. The sound reaches the other end of the pier by traveling…

A:

Q: V= 120 Ry =152 Ro=2 2 R3: 2 k5 = 82 ww

A: In series combination equivalent resistance is given by R = R1 +R2 +R3 .......................Rn In…

Q: If a bus traveling at 21 m/s is subjected to a steady deceleration of 3 m/s? .How long will it take…

A: Given Initial speed of the bus is v0=21 m/s Deceleration of the bus is a=3 m/s2 Final speed of the…

Q: A 300-g stone is thrown with an initial velocity of 7.50 m/s. Calculate for the change in potential…

A: Maximum height h=v2/2g =(7.50)^2/(2×9.81)=2.866 m. So potential energy =mgh. =300×10^-3×9.81×2.866…

Q: Also known as a supporting O Normal Force Gravitational Force Tension Force

A: Also known as a supporting force which balances the weight of an object or a person against a…

Q: If a bus traveling at 21 m/s is subjected to a steady deceleration of 3 m/s? .How long will it take…

A: Given data :                  Initial velocity   =   u                  Final  velocity    =   v…

Q: A web page designer creates an animation in which a dot on a computer screen has position ř = [4.0…

A: A web page designer creates an animation in which a dot on a computer screen has position.

Q: Problem 6:   Suppose an atom has an electron with magnetic quantum number ml = 2 What is the…

A: Suppose an atom has an electron with magnetic quantum number ml = 2 So orbital quantum number should…

Q: Activity 3 of 4 If the mass of the satellite was increased, how would the gravitational attraction…

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Q: Q.2 Put the word (True) or the word (False) of the flowing expressions; True False 1. A partical is…

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Q: Use Hooke's law to calculate the mass hanging from a spring at equilibrium if the spring constant…

A: Spring constant = K=22 N/m Stretched distance = y = 0.089 m

Q: A car, with mass m, is racing around a circular track with some velocity v. If the car suddenly had…

A: Centripital acceleration a1= mv2/r  If mass m=3m  Velocity v=2v

Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.