28. What type of lense is this? parallel light rays focal point axis аxis focal length A. Concave B. Convex C. Diverging D. Reflective E. None of the Above

Q: 3 A car is traveling at constant speed of v = 14 m/s. Its tires have a diameter of d = 0.68 m. ables

A:

Q: Directions: Briefly and concisely answer the following questions. 1. What is the net force? 2. How…

A: The problem is based on the concept of force on a  particle placed inside the electric and magnetic…

Q: Problem 3: Two blocks are connected by a massless rope as shown below. The mass of the block on the…

A:

Q: Problem 10: A contestant in a winter sporting event pulls a 42 kg block of ice in the positive…

A: mass of block of ice = 42 kg coefficient of static friction = 0.1coeffcient of kinetic friction =…

Q: Problem 5: Aleg is suspended in a traction system as shown in the image to the right. The image…

A: (a) Magnitude of force(F) From the figure which is shown in the question we have F =…

Q: 4. What is the rate of heat transfer by radiation, with an unclothed person standing in a dark room…

A: Given, Ambient Temperature =24°C Skin temperature =32°C Surface Area =1.6 m2. Emissivity of skin…

Q: 2. The Modified Atwood Machine above has the following masses: m1 3 kg and m2 =5 Kg. The coefficient…

A: Kinematics.

Q: 8. A transformer is a device used to increase or decrease the voltage through induction. Which…

A: The positive charge accelerates along the direction of electric field.  So the charge ( which is…

Q: 34. What is Jupiter's atmosphere mostly made of? A. Helium B. Methane C. Hydrogen D. Oxygen E.…

A: 34. The atmosphere of Jupiter mostly made of Hydrogen.

Q: Can clectric field lines intersect in free space?

A: The imaginary curves or lines drawn around a charge represent the charge’s electric field. A tangent…

Q: A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies…

A:

Q: Problem 3: A baseball of mass m = 0.37 kg is spun vertically on a massless string of length L= 0.55…

A: The tension of the string, when the mass is at top is calculated by the formula T=(mv^2/L)-mg.…

Q: Problem 8: The free-body diagram shows the all of the forces acting on an object of mass m = 4.13…

A:

Q: 1.5 1 The plot shows the velocity v versus time t for an object that is moving. 0.5 4 t (s) Part (a)…

A:

Q: Problem 10: On a two-leg trip, a car travels the first leg, a distance D = 45 miles, in a time tj =…

A:

Q: Consider the potential energy in stored in a spring: U, = 1/2kl Where k = 10 N/m is the spring…

A:

Q: Part (b) What is the angular velocity of the Earth in rad/s? Part (c) Given that Earth has a radius…

A: In this question we have to find the period of rotation of Earth in seconds and the Angular Velocity…

Q: Problem 3: A boxer's fist and glove have a mass of m = 0.74 kg. The boxer's fist can obtain a speed…

A:

Q: please answer both

A: Since there are multiple questions posted, we will answer the first question. Assume that the flow…

Q: Consider an object that is given an initial potential energy U, by a compressed spring. The object…

A: Given: k=7 N/mm=0.6 kgl1=0.070 ml2=0.14 m