A Canadian speed limit of 50 km/h is closest to which U.S. limit expressed in miles per hour? (a) 60 mph; (b) 45 mph; (c) 30 mph

Q: A geologist finds that a moon rock whose mass is 8.25 kg has an apparent mass of 6.15 kg when…

A: Given:-  The mass of the moon rock is m = 8.25 kg  The apparent mass, when submerged in water, is m'…

Q: Consider a converging lens whose focal length is 6.39 cm. An object is placed on the axis of the…

A:

Q: energy

A: Total internal reflection happens when angle of incidence go beyond the critical angle. It is the…

Q: A block A is on a horizontal frictionless table. An ideal cord is tied to block A and is connected…

A:

Q: An emf is induced in a conducting loop of wire 1.25 m long as its shape is changed from square to…

A: Given :  Length of the wire = 1.25m Change in time = 0.145 s Magnetic field = 0.481 T To Find…

Q: A solid block is suspended from a spring scale. When the block is in air, the scale reads 37.0 N,…

A:

Q: A generator is designed to produce a maximum emf of 190 V while rotating with an angular speed of…

A:

Q: Two vectors A and B are shown in figure below. Draw a vector diagram to show how 2A-B?

A: According to question we need to draw 2A - B.

Q: Using the following circuit find the values of the two EMF sources (i.e., ɛ1 and ɛ2)? 1.00 A 1.000…

A:

Q: In the figure, two long straight wires are perpendicular to the page and separated by distance d₁ =…

A: Given data: Current carried by the wire 1, I1=31.36 A Distance, d1=2.57 cm=0.0257 m Distance…

Q: a a cross G=3MF G₂ = 4MF @ Voltage each capacitor? the change on each capacitor? Cz=2μF V=21 Volts b

A:

Q: Determine the centroid coordinates (x, y) for the solid and homogenous section shown in Figure Q3a,…

A:

Q: Number of Ra-223 Nuclei 60 50 40 30 20 10 0 0 LO 5 10 15 20 Time/days 25 30 35

A:

Q: The following statements are TRUE about geophysics except: O Geophysics can be used to determine the…

A: geophysics is an applied part of geophysics and monetary geography, which utilizes actual…

Q: A mountain climber is about to haul up a 90-m length of hanging rope. How much work will it take if…

A: Given: The length of the hanging rope is 90 m. The weight of the rope is 0.65 N/m.

Q: A 6.43 mm high firefly sits on the axis of, and 10.5 cm in front of, the thin lens A, whose focal…

A: Given:-  The height of the object is h = 6.43 mm.  for the first thin lens, the object distance is…

Q: em 11-Imaging: You are given a plano-convex lens. The glass has a refractive index of 1.5. The…

A:

Q: In the figure below, q1 = +1.00 nC and q2 = +9.00 nC. At what position is the net electric field due…

A:

Q: A particle is moving at 100m/s and eventually slowed down by a uniformly increasing deceleration…

A: Since it's given that acceleration is increasingly at uniform rate so dadt=k ∫3ada=∫0xkdt On…

Q: Consider three point-charges: ql = -3.0 µC at (0.0 m, 0.0m); q2 = 6.0 µC at (0.40 m, 0.0 m); and q3…

A: To find Magnitude and direction of the resultant Electrostatic force, we use Coulomb's law. The…

Q: A 6.12 kg object falls freely (ignore air resistance), after being dropped from rest. Determine the…

A:

Q: A 0.020 kg bullet is shot horizontally and collides with a 2.00 kg block of wood. The bullet embeds…

A:

Q: A 625 gram basketball with a radius of 11.0 cm is a uniform hollow sphere that rolls without…

A: Here Given: M= 0.625Kg v= 5m/s R= 0.11m To find : Moment of Inertia of the ball Angular Speed Max…

Q: Find the work done by the force field F(x, y, z)=xi+yj+4zk on a particle as it moves along the path…

A:

Q: Include given and required for the solution of this given problem. For the system shown below,…

A:

Q: Which of the following statements is not true regarding the speed of light     Speed of light…

A:

Q: The figure below shows a resistor network. • The values of the components are as follows: R₁ = 3.140…

A:

Q: Two particles Y and Z with equal mass and speed enter a uniform magnetic field and follow the paths…

A: Given data: The paths followed by two particles Y and Z of same mass and speed.

Q: 8. Find the work done on a lagage of 50 kg. pulled by a string elevated at 45 degrees by a force of…

A:

Q: 1.36 A surveyor sights a target at C from points A and B, recording the angles shown. Determine the…

A:

Q: 1.55 The force R is the resultant of P and Q. Determine Q and the angle 0. 55° Q P=3 kN R=2 kN

A:

Q: In the figure below, q1 = +2.00 nC and q2 = +8.00 nC. At what position can an electron be placed and…

A:

Q: A student cramming for their final exam heats up 0.500 L of cold coffee in a Pyrex carafe. The…

A:

Q: In the figure four particles are fixed along an x axis, separated by distances d = 3.60 cm. The…

A: Given value--- d = 3.60 cm. q1 = 4e . q2 = -e . q3 = e . q4 = 12e . We have to find--- net force…

Q: GPS satellites orbit the earth at a speed of approximately 3900 m/s, compared to our speed on the…

A: Solution: Given: c = speed of light = 2.99792000 x 108 m/s  1 day = 24 h x 60 min/h x 60 s/min =…

Q: A 4-pound weight stretches a spring 2 feet. The weight is released from rest 15 inches above the…

A:

Q: A bead of 5grams that is amber is suspended by a string in a uniform horizontal electric feild which…

A: Given: The mass of the charged particle is 5 g. The strength of the electric field is 4300 N/C. The…

Q: From the figure below, the differential area ds for the phase DCGH is dxdya₂. F a True False 22 A D…

A: From given figure :- Differential area (dS) vector of face DCGH will be given as :-  dS = (dx × dy…

Q: 11. With the same problem in no. 8, calculate friction if its coefficient is 0.1. a. 30 N b. 32 N c.…

A:

Q: The figure shows an electric dipole. What is the magnitude of the dipole's electric field at point…

A: Given:-  The charge q = 9.38 x 10-6 C  the distance d = 5.03 x 10-6 m and the distance of point P is…

Q: A wire 1.96 m long carries a current of 14.84 A and makes an angle theta with a uniform magnetic…

A:

Q: There are 3 identical resistors which are connected in parallel . When one is removed and…

A: According to question we need to find resistance.

Q: If light travels from one medium to another its velocity changes. The term used to describe this…

A: When the light travels from one medium to another medium, the energy of the light remains the same.

Q: Two masses m₁ = 7.1 kg and m2 = 3.6 kg are connected by a string as shown. If the pulley is massless…

A:

Q: A 10 Kg object hangs at rest from a spring with force constant 180 N/m. A 15 Kg object is gently…

A:

Q: Do we have to consider Light as a wave or particle?     Light  always behave as an electromagnetic…

A: This can be explained by the quantam mechanical wave-particle duality theory. In this it explained…

Q: In the series connection below, what is the voltage across R2? R₁ = 39 O 1.5 V O 3V 06V 9 V V = 9V…

A: Given: The supply voltage is 9 V. R1=3 ΩR2=6 Ω

Q: The total mechanical energy of the block is the sum of kinetic and potential energies.

A:

Q: If the dose rate from a sample of Ra-223 was found to be 5.0 × 10-5 mSv per hour at 1.8 metres,…

A:

Q: What are the period and the frequency of the system of mass-spring, if the mass = 0.22 kg and spring…

A: Given: The mass of the object is 0.22 kg. The spring constant is 5 N/m.

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.