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2 years ago

An apple contains 165 Calories. How many actual calories does it contain? How many joules does it contain

Physics

1 answer:

jasenka [17]2 years ago

8 0

Answer:

95 calories

Explanation:

A medium-sized apple has only 95 calories but plenty of water and fiber.

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A mover loads a 100 kg box into the back of a moving truck by pushing it up a ramp. The ramp is 4 m long and the back of the tru

elixir [45]

Answer:

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Explanation:aaaaaaaaaaaaaaaa

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2 years ago

A large crate is suspended from the end of a vertical rope. Is the tension in the rope greater when the crate is at rest or when

choli [55]

Answer:

Part a)

the tension force is equal to the weight of the crate

Part b)

tension force is more than the weight of the crate while accelerating upwards

tension force is less than the weight of crate if it is accelerating downwards

Explanation:

Part a)

When large crate is suspended at rest or moving with uniform speed then it is given as

$F_t - mg = ma$

here since speed is constant or it is at rest

so we will have

$a = 0$

$F_t = mg$

so the tension force is equal to the weight of the crate

Part b)

Now let say the crate is accelerating upwards

now we can say

$F_t - mg = ma$

$F_t = mg + ma$

so tension force is more than the weight of the crate

Now if the crate is accelerating downwards

$F_t - mg = -ma$

$F_t = mg - ma$

so tension force is less than the weight of crate if it is accelerating downwards

4 0

2 years ago

A scientist performed an investigation involving a reaction that produce AI 2 (SO 4) 3 how many sulfur atoms are represented in

Korvikt [17]

The Answer is D

Because you add all of them to equal 9 atoms

5 0

2 years ago

Read 2 more answers

(8c7p26) During spring semester at MIT, residents of the parallel buildings of the East Campus dorms battle one another with lar

likoan [24]

Answer: 1175 J

Explanation:

Hooke's Law states that "the strain in a solid is proportional to the applied stress within the elastic limit of that solid."

Given

Spring constant, k = 102 N/m

Extension of the hose, x = 4.8 m

from the question, x(f) = 0 and x(i) = maximum elongation = 4.8 m

Work done =

W = 1/2 k [x(i)² - x(f)²]

Since x(f) = 0, then

W = 1/2 k x(i)²

W = 1/2 * 102 * 4.8²

W = 1/2 * 102 * 23.04

W = 1/2 * 2350.08

W = 1175.04

W = 1175 J

Therefore, the hose does a work of exactly 1175 J on the balloon

7 0

2 years ago

A football player running for a touchdown is what energy

melamori03 [73]

Potential and kinetic energy are the two types of energy, but they do get separated into subgroups, for which I do not know. Hope that helps.

4 0

2 years ago