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Science 10 (Semester 2) [5 cr] (2024-25) - Vista Virtual School - 1610
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A girl pushes herself up a steep ramp in her wheelchair. She gains a vertical distance of 25.8 m when she reaches the top of the ramp. She turns around and coasts back down the ramp. If the combined mass of the girl and her wheelchair is 64.6 kg, what would be her coasting speed at the bottom of the ramp?
You MUST show all work starting with the formula (and rearrangement if needed). The formula must use symbols for formulas introduced in the VVS course. Next, you need to show the substitution of values into the formula, then the calculated answer. Remember to include units and use correct significant digits in your final answer. Responses only showing the final answer will receive a zero grade.
You MUST show all work starting with the formula (and rearrangement if needed). The formula must use symbols for formulas introduced in the VVS course. Next, you need to show the substitution of values into the formula, then the calculated answer. Remember to include units and use correct significant digits in your final answer. Responses only showing the final answer will receive a zero grade.
Regarding the previous question (Q21), what is the baseball's mechanical energy when it is a height of 8.0 m? Explain.
While playing baseball with your friends, you hit a 0.143 kg baseball off your bat and the ball goes straight up in the air. The ball reached a height of 10.0 m with a speed of 25.3 m/s. What is the mechanical energy at this height?
You MUST show all work starting with the formula (and rearrangement if needed). The formula must use symbols for formulas introduced in the VVS course. Next, you need to show the substitution of values into the formula, then the calculated answer. Remember to include units and use correct significant digits in your final answer. Responses only showing the final answer will receive a zero grade.
A hockey puck has a mass of 0.20 kg. If the hockey puck is moving with 75 J of kinetic energy, what is its speed?
You MUST show all work starting with the formula (and rearrangement if needed). The formula must use symbols for formulas introduced in the VVS course. Next, you need to show the substitution of values into the formula, then the calculated answer. Remember to include units and use correct significant digits in your final answer. Responses only showing the final answer will receive a zero grade.
You are riding on a bike at a speed of 2.54 m/s. If you and the bike have a kinetic energy of 193 J, what is the combined mass of you and your bike?
You MUST show all work starting with the formula (and rearrangement if needed). The formula must use symbols for formulas introduced in the VVS course. Next, you need to show the substitution of values into the formula, then the calculated answer. Remember to include units and use correct significant digits in your final answer. Responses only showing the final answer will receive a zero grade.
On a highway, a car with a mass of 1.1 × 103 kg is travelling at 25 m/s. What is the kinetic energy of the car?
You MUST show all work starting with the formula (and rearrangement if needed). The formula must use symbols for formulas introduced in the VVS course. Next, you need to show the substitution of values into the formula, then the calculated answer. Remember to include units and use correct significant digits in your final answer. Responses only showing the final answer will receive a zero grade.
A large rock rests on a ledge 31.2 m above a lake. If the rock has 2.65 x 105 J of gravitational potential energy relative to the surface of the lake, what is the mass of the rock?
You MUST show all work starting with the formula (and rearrangement if needed). The formula must use symbols for formulas introduced in the VVS course. Next, you need to show the substitution of values into the formula, then the calculated answer. Remember to include units and use correct significant digits in your final answer. Responses only showing the final answer will receive a zero grade.
A trophy with a mass of 1.25 kg gains 27.7 J of potential energy when it is lifted from the floor to a shelf. How high is the shelf above the floor?
You MUST show all work starting with the formula (and rearrangement if needed). The formula must use symbols for formulas introduced in the VVS course. Next, you need to show the substitution of values into the formula, then the calculated answer. Remember to include units and use correct significant digits in your final answer. Responses only showing the final answer will receive a zero grade.
An elevator car on the 6th floor of a building has a mass of 658 kg and its three passengers have a combined mass of 146 kg. If the elevator and its passengers ride to the ground floor, 19.17 m below, find the change in gravitational potential energy of the car and its passengers.
You MUST show all work starting with the formula (and rearrangement if needed). The formula must use symbols for formulas introduced in the VVS course. Next, you need to show the substitution of values into the formula, then the calculated answer. Remember to include units and use correct significant digits in your final answer. Responses only showing the final answer will receive a zero grade.