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ICE Princess25 [194]
3 years ago
14

When you weigh yourself on good old terra firma (solid ground), your weight is 151 lb . in an elevator your apparent weight is 1

31 lb ?
Chemistry
1 answer:
Amiraneli [1.4K]3 years ago
4 0
Gravity? The higher you are, the lighter you are. Change of clothes?
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SKJIEDHISJLKDSKSJKA HELPP
Vinil7 [7]

Answer:

agree

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6 0
2 years ago
Donna has observed that her father can control the speed of their grandfather clock by adjusting the height of the weight on the
adelina 88 [10]

Answer:

1. Independent variable : pendulum's height

2. Dependent variable : Pendulum speed

Explanation:

In an experiment scientist uses such things to search for any cause and its effect. experimenters design the model in such a way that change in one of the item causes a change in another.

These are called variables which are independent variable and dependent variable. Independent variables can be changed by the experimenter while dependent variables are not controllable by the experimenter.

In the context, the hypothesis is when the pendulum's height is reduced, the clock will speed up.

1. Independent variable : height of the pendulum

2. Dependent variable : Pendulum speed

4 0
3 years ago
How much heat has been lost when a 78 g piece of copper is placed into a calorimeter and cools from 120°C to
lora16 [44]

The amount of heat lost by the copper is 2402.4 J.

To Calculate the amount of heat lost, we use the formula below.

<h3>Formula:</h3>
  • Q = cm(t₂-t₁)................. Equation 1

<h3>Where:</h3>
  • Q = Amount of heat lost
  • c = specific heat capacity of copper
  • m = mass of copper
  • t₂ = Final temperature
  • t₁ = Initial temperature

From the question,

<h3>Given:</h3>
  • m = 78 g
  • c = 0.385 J/g°C
  • t₂ = 120°C
  • t₁ = 40°C

Substitute these values into equation 1.

  • Q = 78(0.385)(120-40)
  • Q = 2402.4 J

Hence, The heat lost by the copper is 2402.4 J

Learn more about heat here: brainly.com/question/13439286

3 0
2 years ago
Stop reporting my stuff Ezekiel333
Irina-Kira [14]

Answer:

I'm not, I swear

Explanation:

3 0
3 years ago
A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting ground for Merrick sea turtles, and pr
Alja [10]

Answer:

A) Misinformation! Contradicts info given.

B) Turtles laying eggs now were not affected by the spill. Effect of spill should be approximately 10 yrs later.

5 0
3 years ago
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