) A bicycle travels 10.5 km in a in the first part of a race in 45.0 min. The cyclists travels 15.0 km in 70.0 min in the second half of the race. Calculate the average speed of the bicycle in km/hr.

Q: 1) A jet flying in the air executes a vertical circular loop with a radius of 500 m at a constant…

A: (a) Draw the free-body diagram of the pilot at the top and bottom of the loop.

Q: pring of k = 1972 N/m loses its elasticity if stretched more than 45 cm. What is the mass of the…

A:

Q: A 52.6-kg box is being pushed a distance of 7.31 m across the floor by a force P whose magnitude is…

A: Solution,

Q: 20 Shortly after take-off, a plane is rising at a rate of 300 m/min. It is heading at an angle of…

A:

Q: Wind gusts create ripples on the ocean that have a wavelength of 7.00 cm and propagate at 1.75 m/s.…

A: Ripples in the ocean travels like a wave. The terms associated with the wave are frequency,…

Q: 2) Ray, a Motocross rider, rides off the edge of a cliff. Just at the edge his velocity is…

A: Given: motorcycle velocity (vox)= 8.5m/s

Q: Find the impulse value Force=1 N, Time=2.2 s 1:1 N s 2:2 N*s 3: 3 Nᵒs 4: 2.2 Nºs

A:

Q: Johannah throws a ball from the window 9.5 m above the ground. When the ball leaves his hand, it is…

A: Write the given values with the suitable variables. h=9.5 mu=9 m/sθ=25° Here, h, u, and θ are the…

Q: Q4/draw the block diagram of basic elements of digital communication system and des the function of…

A:

Q: Shown in the figure is a 258-kg homogeneous cylinder that rolls without slipping on the horizontal…

A:

Q: 3. The length of a glass rod is 52.7 cm at 25 °C. After heating, the final length of the glass is…

A:

Q: (1) Determine the magnitude and direction of the electric field 21.7 cm directly above an isolated…

A:

Q: A transformer whih is used to operate a radio of 12 Volts and 36 Watts from a 240 main supply from…

A:

Q: If the momentum of a car is 190 kg X m/s and it's mass is 160 kg. Calculate its velocity?

A: We have a car of mass m=160 kg which has a momentum given by p=190 kg-m/s and we need to find the…

Q: State two smaller unit of volume. how are they related to the S.l unit?

A:

Q: A sphere of radius 0.25 m and a weight of 108 N is released with no initial velocity on the incline…

A:

Q: A net force of 25 N produces an acceleration of 5 m/s² on a lab cart. Its mass is Select one: Ⓒa. 30…

A:

Q: You connect a battery, resistor, and capacitor as shown in Figure, where a = 36.0 V, C = 5.00 UF,…

A:

Q: A professor designing a class demonstration connects a parallel-plate capacitor to a battery, so…

A: Solution:-

Q: A water tower has a volume of  295,880   gal . Use the table of conversion facts to find out how…

A: 1 cubic galon =0.00495 cubic yard Volume of water tower=295880 galon So in term of cubic yard volume…

Q: The brakes of a truck cause it to slow down by applying a retarding force of 7760 N to the truck…

A: Given data:  Force (F) = 7760 N Distance (d) = 868 m Required: The work (W)

Q: The angular acceleration of a flywheel decreases uniformly from 9 rad per sec² to 3 rad per sec² in…

A:

Q: A vibrating rope at a fixed tip has a frequency of (5 Hz), amplitude (12 cm) and a transverse wave…

A: Write the given values with the suitable variables. f=5 HzA=12 cmv=20 m/s Here, f, A, and v are the…

Q: What is the difference in how current is distributed in a series circuit to the distribution of…

A:

Q: .. (a) Find the scalar product of the vectors A and B given in Exercise 1.360. (b) Find the angle…

A: The given vectors are A→=4i^+7j^B→=5i^-2j^

Q: Does the principle of conversation of energy hold for interference and diffraction phenomenon

A: The law of conservation of energy states that energy can neither be created nor be destroyed.…

Q: Which of the following statements is FALSE? O Angular acceleration can be expressed as the torque…

A: option- none of the given choices.

Q: A vehicle is running with a velocity of 5m/s. If the momentum of the vehicle is 5000 kg m/s, what is…

A: Introduction :  In this question we are provided with value of momentum and velocity . With these…

Q: A beach ball filled with air is pushed about 1 m below the surface of a swimming pool and released…

A: Buoyant force on beach ball filled with air when submerged in water

Q: . What is the acceleration of the 5 kg box that has a 25 N force and 50 N force applied both right?

A: Part (1):Given: The mass of the object is 5 kg. The forces on the object are 25 N and 50 N both in…

Q: A small block with mass 0.0400 kg is moving in the xy-plane. The net force on the block is described…

A:

Q: 5.50* Two positive lenses are to be used as a laserbeam expander. An axial 1.0-mm-diameter beam…

A: We have two lenses of focal length say f1=50 mm and f2 on which a beam is incident of diameter h=1…

Q: Use dimensional analysis to convert the quantity to the indicated units.   12 yd to in.

A: The physical quantity is given as x=12 yd

Q: A professor designing a class demonstration connects a parallel-plate capacitor to a battery, so…

A: (a) Charge on plate before immersion,  Qi = εoAV /d Qi = (8.85 x 10-12 x 25 x 10-4 x 255) / (0.0155)…

Q: Design Layout References Mailings Review View Tell me what you want to do... Α Α΄ Aa ▾ 2 T AaBbCcI…

A: Given Launch angle (θ ) = 25° and 35°  For , θ  = 25°   sin25° =0.42  cos25° = 0.91  tan25° = 0.47

Q: Firewood is a traditional biomass energy source. To heat a 1500 sq.ft. house in Canada we need about…

A: Energy density of firewood=4.5 kWh/kg But efficiency of it=60% So energy produced by 1kg of firewood…

Q: 11. Vectors A and B are shown. What is the magnitude of a vector ĉ-Ã-B?

A: Required: C

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

A: Given that: m=66.5 kgh=1.02 mu=0t=0.274 seca=?

Q: Solve the problem. PROVIDE THE GIVEN, REQUIRED, EQUATION, SOLUTION, AND FINAL ANSWER Ariana is…

A:

Q: Question 1 A person travels at a speed of 8.5 m/s in a direction that is 30 degrees west of due…

A:

Q: 1. What is the acceleration of the 15 kg box that has 500 N of force applied to the right? 2. What…

A:

Q: B 30° A The 50 kg homogeneous smooth sphere rests on the 30 degree incline A and bears against the…

A:

Q: QUESTION 1 A rough surface is inclined at 40° to the horizontal. A box of mass 1.5 kg is pulled at…

A:

Q: A crate of mass 32 kg is pushed along a floor with a force of 45.011 N for a distance of 67.06 m.…

A: Introduction :  In this question we are provided with value of force and distance . with these data…

Q: Determine the target material if the threshold frequency of EM radiation is 5.5x1015 Hz in a…

A: From the photoelectric effect, Ek = hf − ϕ Given, f = 5.5x1015 Hz Here, ϕ is the threshold energy…

Q: Question 1 A person travels at a speed of 8.5 m/s in a direction that is 30 degrees west of due…

A:

Q: Four point charges, each of magnitude 2.34 x 101 C, are placed at the corners of a square 40.8 cm on…

A:

Q: A source of light having two wavelengths 500 nm and 550 nm of equal intensity is incident on a slit…

A: We have a source of light having two wavelengths λ1=500 nm  and  λ2=550 nm which are incident on a…

Q: In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at…

A:

Q: How many turns has a thoroughly flat circular coil of wire, which has a diameter of 3.6 cm that…

A:

Scalars and Vectors

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