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meriva
3 years ago
13

Four 5-gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. Use the following

Physics
2 answers:
Kobotan [32]3 years ago
8 0

Answer: its lead trust me

hope this helps:)

Explanation:

mr Goodwill [35]3 years ago
8 0

<u>Answer:</u> The change in temperature will be highest for lead metal

<u>Explanation:</u>

To calculate the heat absorbed or released, we use the equation:

q=mC\times \Delta T

where,

q = heat absorbed = 200.0 J

m = mass of the substance

C = specific heat of substance

\Delta T = change in temperature

As, amount of heat is getting absorbed and mass is same in all the cases. So, the change in temperature will depend only on the specific heat.

\Delta T=\frac{q}{mC}

From above, it is visible that change in temperature is inversely related to specific heat. So, more is the specific heat, less will be the temperature change.

For the given options:

The specific heat of lead is the lowest which is 0.03 Ca/g°C

Hence, the change in temperature will be highest for lead metal

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What is Kinetic Energy based on?
jolli1 [7]

Answer:

C. Motion

Explanation:

Hope this helps!

3 0
3 years ago
A bowling ball with a momentum of 18kg-m/s strikes a stationary bowling pin. After the collision, the ball has a momentum of 13k
Veronika [31]

Answer:

14.98\ \text{kg m/s}

45.26^{\circ}

Explanation:

P_1 = Initial momentum of the pin = 13 kg m/s

P_i = Initial momentum of the ball = 18 kg m/s

P_2 = Momentum of the ball after hit

55^{\circ} = Angle ball makes with the horizontal after hitting the pin

\theta = Angle the pin makes with the horizotal after getting hit by the ball

Momentum in the x direction

P_i=P_1\cos55^{\circ}+P_2\cos\theta\\\Rightarrow P_2\cos\theta=P_i-P_1\cos55^{\circ}\\\Rightarrow P_2\cos\theta=18-13\cos55^{\circ}\\\Rightarrow P_2\cos\theta=10.54\ \text{kg m/s}

Momentum in the y direction

P_1\sin55=P_2\sin\theta\\\Rightarrow P_2\sin\theta=13\sin55^{\circ}\\\Rightarrow P_2\sin\theta=10.64\ \text{kg m/s}

(P_2\cos\theta)^2+(P_2\sin\theta)^2=P_2^2\\\Rightarrow P_2=\sqrt{10.54^2+10.64^2}\\\Rightarrow P_2=14.98\ \text{kg m/s}

The pin's resultant velocity is 14.98\ \text{kg m/s}

P_2\sin\theta=10.64\\\Rightarrow \theta=sin^{-1}\dfrac{10.64}{14.98}\\\Rightarrow \theta=45.26^{\circ}

The pin's resultant direction is 45.26^{\circ} below the horizontal or to the right.

4 0
3 years ago
A goldfish is capable of seeing which electromagnetic wave?
Leno4ka [110]

Answer:

D

Explanation:

they can see this along with many other fish.

6 0
3 years ago
Un bloque de 25 n se encuentra suspendido por un hilo al techo vitamina la tensión que aparece en el hilo
SVETLANKA909090 [29]

Answer:

T = 25 N

Explanation:

The question says that "A 25 n block is suspended by a wire from the ceiling vitamin the tension that appears in the wire ?"

Weight of the block, W = 25 N

Weight of a body acts in downward direction and tension acts in upward direction. It would mean that,

Tension = weight of the block

T = mg

T = 25 N

Hence, the tension in the wire is 25 N.

7 0
3 years ago
Fronts are termed by the temperature of the air mass that overtakes another air mass. A. True B. False
Vikki [24]
A. True
if cold air is replacing warm air it is a cold front and vice versa.
6 0
3 years ago
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