Which of these is a process in which the atmosphere does not play any role? a. formation of snow b. evaporation of water c. transpiration in plants d. erosion of soil by water
Some properties, such as mass, depend on how much matter is present. Other properties, such as malleability, remain the same no matter how much matter is present. Which of these choices is a physical property of the element potassium that remains the same no matter how much matter is present? a. melting point b. volume c. flammability d. reactivity
Why is honesty especially important in a scientist when the results of an experiment go against predictions❓❔
Balls 1 and 2 are each thrown horizontally from the same height above level ground, but balls 2 has a great initial velocity after leaving the thrower's hand. If air resistance is negligible, how do the accelerations of the balls and the times it takes them to hit the ground compare?
How do you calculate the initial speed given time and displacement? The question is: The longest kick in CFL history was 83.2m. If the ball remained in the air for 4.12s, determine its initial speed. I calculated it several times and got the same answer, 40.38m/s, but the textbook says it's 28.6m/s.
Questions 1. Calculate the molar mass of an element. 2. Calculate the molar mass of a compound. 3. How do you determine the number of protons, electrons and neutrons in an atom given it's atomic number. 4. What are the key components of the Kinetic Theory? (Its ok if you can't answer all of them, I will be happy with whatever ones you can answer.)
A basketball rolls of a 0.70 m high desk and strikes the floor 0.25 m away from the base of the desk? How fast was the ball rolling?
A person walks 25 m west and then 45 m at the angle of 60 degrees north of east what is the magnitude of the total displacement?
A basketball player achieves a hang time of 0.773 s in dunking the ball. What vertical height will he attain? The acceleration of gravity is 9.8 m/s^2 .
A packet is dropped from a stationary helicopter, hovering at a height 'h' from the ground level, reaches the ground in 12s. Calculate 1) value of 'h' "displacement" 2) final velocity of packet on reaching ground level take acceleration due to gravity=9.8ms^-2 Please show how you received your answer.
On a summer afternoon, the sand on the beach can get very hot. When you step on the sand in bare feet, you can burn yourself. Which of the following sentences best describes how this happens? Heat from the Sun is transferred to the sand without direct contact. This heat is then transferred to your feet without direct contact. Heat from the Sun is transferred to the sand without direct contact. This heat is then transferred to your feet by direct contact. Heat from the Sun is transferred to the sand by direct contact. This heat is then transferred to your feet by direct contact. Heat from the Sun is transferred to the sand by direct contact. This heat is then transferred to your feet without direct contact.
Brittany placed a cold piece of butter on a hot ear of corn. The butter began to melt. The butter melted when it came into contact with the corn because heat was transferred from the corn to the butter by _______.
Is Glass a good conductor of heat? is Metal a good conductor of heat? is wood a good conductor of heat
