The specific heat of iron is 0.11 cal/goC. A cafeteria fork made of iron has a mass of 20 grams. How much heat energy is needed to raise the temperature of this form from 25oC to 75oC?

0.044 calories

0.275 calories

110 calories

9090.9 calories

Which of the following objects has the largest amount of inertia? A. a carrot B. a basketball C. a sofa D. They all have the same amount of inertia.

A truck pulls a large box to the left with two large chains. The truck is unable to move the box because the large box is in equilibrium. One of the chains has tension in the amount of 1000 Newtons.

According to which calendar is new year's celebrated on january 1st?

The atmosphere is made up of several layers of air. The bottom two layers are the troposphere and the stratosphere. How does the troposphere differ from the stratosphere? A. The troposphere is much warmer than the stratosphere. B.

If it's a full moon how much of the moon are you actually seeing?

A light ray travels inside a horizontal plate of glass, striking its upper surface at an angle of incidence of 50°. This ray is totally internally reflected at the glass-air boundary. A liquid is then poured on top of the glass.

A stationary object has no forces acting on it. True False

April swims 50 m north and then turns and swims 20 m back to the south. What is her velocity if it takes her 60 seconds?

What happens to the mass of an object when it is cooled?

An electric vehicle starts from rest and accelerates at a rate of 2.1 m/s2 in a straight line until it reaches a speed of 25 m/s. The vehicle then slows at a constant rate of 1.2 m/s2 until it stops. (a) How much time elapses from start to stop