All categories

3 years ago

1. How much heat must be absorbed by 375 grams of water to raise its

Physics

1 answer:

antiseptic1488 [7]3 years ago

5 0

Answer:

39225J

Explanation:

Given parameters:

Mass of water = 375grams of water

Change in temperature = 25°C

Specific heat capacity of water = 4.184J/g°C

Unknown:

Amount of heat absorbed = ?

Solution:

To solve this problem, we use the expression below:

H = m c Ф

H is the heat absorbed

m is the mass

c is the specific heat capacity

Ф is the change in temperature

Insert the parameters and solve;

H = 375 x 4.184 x (25) = 39225J

You might be interested in

Is it true that at freezing point particle are vibrating so fast they break free?

kondor19780726 [428]

It is false. The effect of freezing is almost the exact opposite

4 0

4 years ago

Read 2 more answers

A student, standing on a scale in an elevator at rest, sees that his weight is 840 N. As the elevator rises, his weight increase

ololo11 [35]

As per FBD while its accelerating upwards

we can say that

$F_n - mg = ma$

here normal force is given as

$F_n = 1050 N$

$W = 840 N$

now mass is given as

$m(9.8) = 840$

$m = 85.7 kg$

now we will have

$1050 - 840 = 85.7 \times a$

$a = 2.45 m/s^2$

Now while accelerating downwards we can say by FBD

$mg - F_n = ma$

again plug in all values

$840 - 588 = 85.7 \times a$

$a = 2.94 m/s^2$

5 0

4 years ago

All of the following steps are included in a self-modification program except __________. A. specifying target behavior B. desig

Y_Kistochka [10]

Answer:

C)focusing on one goal at a time

Explanation:

Self-modification programs could be regarded as a program that help individual in managing unwanted as well as dysfunctional behavioral responses whenever they are going through a problem and try to deal with it. For instance the dysfunctional behavioral response for someone with a panic attack is avoidance. Some of the the steps that are involved in in a self-modification program are;

✓ specifying target behavior ✓designing a program

✓ gathering data about target behavior

8 0

3 years ago

Read 2 more answers

1- O telhado de um grande galpão mede 40 m por 75 m e é feito de zinco, cujo coeficiente de dilatação térmica linear vale 3.10^-

Minchanka [31]

Answer:q

Explanation:

7 0

3 years ago

____________ are used to calculate the distance a continent has moved in a year.

Aloiza [94]

Lasers r used to calculate the distance a continent has moved in a year and if this help plzmake it the brainiest answer thnxz
<span />

6 0

3 years ago